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I've been following the great battery impression thread, which discusses ways to tweak the Nexus 4 settings, ROMs, and so forth for maximum run time between charging. This thread focuses on a different battery concern.
The Nexus 4 lithium polymer battery is sealed, and as far as I know, there are still several unknowns about replacing it. We've seen a tear-down showing how to remove the battery. However, as of now, few users have attempted it and there's not a consensus about how easy or difficult it is to do. Questions include:
Even with the correct tools, are the tabs that secure the Nexus 4's back prone to breakage, potentially leaving the case borked?
Is the battery difficult to extricate from its compartment?
Will it a high quality replacement battery become available inexpensively on eBay and elsewhere, or is it this battery, which was not designed to be user-replaceable, too much of an oddball for that to happen meaning that a replacement battery will be expensive and hard to find?
That said, the ease (or lack thereof) of replacing the Nexus 4's battery isn't what I've come here to discuss.
Given the unknowns about battery replacement, my concern is to how to maximize the Nexus 4 battery charge cycles and reduce the capacity drop of the battery over time. It could be bad if after just a year, the Nexus 4's capacity is already noticeably dropping. Not possible? I'm not so sure. Based on what I've read, it may depend upon how we handle charging.
This article at "Battery University" discusses the discharge characteristics of Lithium batteries, and it is my understanding that Lithium Polymer batteries, like the one in the Nexus 4 mirror these characteristics.
My takeaway from the article is:
Charging the Nexus 4 battery before it drops to less than 50% capacity will greatly increase the number of charge cycles before there's a noticeable capacity drop. Letting the battery nearly completely discharge will greatly reduce the number of charge cycles, and therefore greatly reduce the time before battery replacement will be necessary. (Table 2)
Inductive (wireless) charging, while convenient, generates extra heat that will over time reduce the recoverable capacity of the battery. (Table 3)
Having read this article, I am curious about the charging characteristics of the Nexus 4 and which, if any, charging variables we can control as users to maximize battery longevity.
When I first get a new smartphone I try to do a handful of full cycle charges before doing any partial charges. Your battery is still "new" and in the "break in" period. Many users that were the first to get theirs have reported their battery life as getting better. Of course a lot to do with battery are things like your data usage and what you have syncing.
RealiZms said:
When I first get a new smartphone I try to do a handful of full cycle charges before doing any partial charges. Your battery is still "new" and in the "break in" period. Many users that were the first to get theirs have reported their battery life as getting better. Of course a lot to do with battery are things like your data usage and what you have syncing.
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Thanks, but I will again clarify that that I created this thread to discuss maximizing the Nexus 4 battery's long-term life and recoverable capacity, not maximizing run-down time in the short-term. That is already being discussed extensively in the great battery impression thread.
I have had a lot of experience with LiIon batteries over the years and I can tell you that the enemy of them is both inactivity and deep discharge use.
Use your phone as you normally would, but avoid frequent deep discharges. Don't be afraid about the number of charge cycles. Frequent charges are better than deep discharge cycles.
These pups have been designed to be used the way most folks use frequently used rechargeable devices. Pop it on the charger when you can, even if you know it won't be there long enough to be topped off. The more frequent and varied activity the better.
I'll add that I do not currently see an LG BL-T5 Nexus 4 replacement battery sold anywhere.
FYI - The Nexus 4 uses an 800 cycle battery as well so makes it even less of a thing to worry about. My SGS2 still gives me good battery life and it's more than 1yr old already, and i think that is a 300 cycle battery. Remember also that at that 800 cycle mark the battery should still have 80% of it's original capacity. 800 cycles is more than 2yrs of constant use/charge every night and for people that don't so much that could put you in the 3yr-4yr range. If you still have this phone 4yrs from now, i think you wont need to complain if it "only" has 80% of it's original charge.
Hi
borntochill said:
I've been following the great battery impression thread, which discusses ways to tweak the Nexus 4 settings, ROMs, and so forth for maximum run time between charging. This thread focuses on a different battery concern.
The Nexus 4 lithium polymer battery is sealed, and as far as I know, there are still several unknowns about replacing it. We've seen a tear-down showing how to remove the battery. However, as of now, few users have attempted it and there's not a consensus about how easy or difficult it is to do. Questions include:
Even with the correct tools, are the tabs that secure the Nexus 4's back prone to breakage, potentially leaving the case borked?
Is the battery difficult to extricate from its compartment?
Will it a high quality replacement battery become available inexpensively on eBay and elsewhere, or is it this battery, which was not designed to be user-replaceable, too much of an oddball for that to happen meaning that a replacement battery will be expensive and hard to find?
That said, the ease (or lack thereof) of replacing the Nexus 4's battery isn't what I've come here to discuss.
Given the unknowns about battery replacement, my concern is to how to maximize the Nexus 4 battery charge cycles and reduce the capacity drop of the battery over time. It could be bad if after just a year, the Nexus 4's capacity is already noticeably dropping. Not possible? I'm not so sure. Based on what I've read, it may depend upon how we handle charging.
This article at "Battery University" discusses the discharge characteristics of Lithium batteries, and it is my understanding that Lithium Polymer batteries, like the one in the Nexus 4 mirror these characteristics.
My takeaway from the article is:
Charging the Nexus 4 battery before it drops to less than 50% capacity will greatly increase the number of charge cycles before there's a noticeable capacity drop. Letting the battery nearly completely discharge will greatly reduce the number of charge cycles, and therefore greatly reduce the time before battery replacement will be necessary. (Table 2)
Inductive (wireless) charging, while convenient, generates extra heat that will over time reduce the recoverable capacity of the battery. (Table 3)
Having read this article, I am curious about the charging characteristics of the Nexus 4 and which, if any, charging variables we can control as users to maximize battery longevity.
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There is little point in worrying about charging before it's discharged to 50% and/or not charging to maximum. Yes it increases the number of cycles, but is reducing runtime between those cycles, so you have to charge it twice as often using up the extra cycles gained, so overall it tends to even out.
The longevity argument for only partial discharges really only applies at the time of design and specification where the manufacturer can spec a larger battery and sacrifice some of the capacity (by only charging say from 30 to 70%) to get extra charge cycles. Clearly with a mobile phone this isn't desirable to do, as we crave all the the runtime we can get in the smallest form factor possible.
Regards
Phil
shotta35 said:
FYI - The Nexus 4 uses an 800 cycle battery as well so makes it even less of a thing to worry about. My SGS2 still gives me good battery life and it's more than 1yr old already, and i think that is a 300 cycle battery. Remember also that at that 800 cycle mark the battery should still have 80% of it's original capacity. 800 cycles is more than 2yrs of constant use/charge every night and for people that don't so much that could put you in the 3yr-4yr range. If you still have this phone 4yrs from now, i think you wont need to complain if it "only" has 80% of it's original charge.
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Is the "800 cycle" rating is based on real world usage, or a set of idealized laboratory conditions that few users will actually meet? Many Nexus 4 forum users are reporting running down their batteries to a discharge depth exceeding 90% on a daily basis before recharging. This will dramatically reduce their battery's number of charge cycles. The "800 cycle" rating is only useful if we know the conditions upon which it was tested.
PhilipL said:
Hi
There is little point in worrying about charging before it's discharged to 50% and/or not charging to maximum. Yes it increases the number of cycles, but is reducing runtime between those cycles, so you have to charge it twice as often using up the extra cycles gained, so overall it tends to even out.
The longevity argument for only partial discharges really only applies at the time of design and specification where the manufacturer can spec a larger battery and sacrifice some of the capacity (by only charging say from 30 to 70%) to get extra charge cycles. Clearly with a mobile phone this isn't desirable to do, as we crave all the the runtime we can get in the smallest form factor possible.
Regards
Phil
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Point taken, although it looks to me like the relationship between discharge depth and maximum number of charge cycles is not linear. From the way I read it, frequent deep discharging can markedly impact battery longevity which is why I'm skeptical of the 800 cycle figure. Given that many Nexus 4 users are currently reporting an inability to make it through a full day without completely draining their battery, those particular users are bound to have shortened battery longevity unless they charge at least twice/day.
Hi
borntochill said:
Point taken, although it looks to me like the relationship between discharge depth and maximum number of charge cycles is not linear. From the way I read it, frequent deep discharging can markedly impact battery longevity which is why I'm skeptical of the 800 cycle figure. Given that many Nexus 4 users are currently reporting an inability to make it through a full day without completely draining their battery, those particular users are bound to have shortened battery longevity unless they charge at least twice/day.
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Yes it isn't linear, but the advantages are also outweighed by the negatives, such as having to plug it in more often to charge, and if people are struggling to get through the day now on a full charge/discharge cycle.....
The 800 cycle figure is probably about right for chemistry used in the LG Nexus, and most of us will have replaced our phone in a couple of years anyway long before we start to notice the lowered battery life.
The other thing with a lithium batteries is they are like perishable foods, even if we don't use them much, after a few years the capacity has diminished anyway. So even if we only charged the phone twice in two years, the third charge capacity would probably not be that much different to having charged it every day for two years.
So we shouldn't worry about the battery, the best thing we can do is use it as much as possible as it is going to degrade anyway, and we will see little benefit from treating it with kit gloves.
The above also assumes the battery can never be replaced. It certainly is replaceable by the manufacturer or a repair centre, and more than likely most of us could manage a replacement ourselves.
Regards
Phil
One very important thing to realize is that these 500/800 or whatever hundred cycles it's talking about is not how many times it can be charged, period.
It's not like after the 500th or 800th charge, this battery can never be powered on again.
Read the article closely:
" the number of discharge/charge cycles Li-ion can deliver at various DoD levels before the battery capacity drops to 70 percent."
Also, if you lower the voltage of the charge, it seems battery long term life greatly increases:
"Most Li-ions are charged to 4.20V/cell and every reduction of 0.10V/cell is said to double cycle life. For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles. If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles; 4.00V/cell should deliver 1,200–2,000 and 3.90V/cell 2,400–4,000 cycles. Table 4 summarizes these results. The values are estimate and depend on the type of li-ion-ion battery."
Hi
borntochill said:
Is the "800 cycle" rating is based on real world usage, or a set of idealized laboratory conditions that few users will actually meet? Many Nexus 4 forum users are reporting running down their batteries to a discharge depth exceeding 90% on a daily basis before recharging. This will dramatically reduce their battery's number of charge cycles. The "800 cycle" rating is only useful if we know the conditions upon which it was tested.
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Click to collapse
When a lithium battery is fully discharged, it isn't actually completely discharged. LG like other manufacturers will have programmed a level that shows 0% on the phone before it shuts down, but in reality this might still leave 10% or 20% or 2% capacity in reserve, we don't know the figure, but presumably LG have set both full and empty charge points to ensure we see around 800 cycles.
Regards
Phil
---------- Post added at 09:19 PM ---------- Previous post was at 09:10 PM ----------
Hi
ksc6000 said:
Also, if you lower the voltage of the charge, it seems battery long term life greatly increases:
"Most Li-ions are charged to 4.20V/cell and every reduction of 0.10V/cell is said to double cycle life. For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles. If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles; 4.00V/cell should deliver 1,200–2,000 and 3.90V/cell 2,400–4,000 cycles. Table 4 summarizes these results. The values are estimate and depend on the type of li-ion-ion battery."
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Yes you get more cycles, but because you have a battery with reduced capacity, you are having to charge it more. Overall the benefit isn't as great as the numbers make it. If LG wanted to give us 1600 cycles they could lower the charge voltages, but then the battery capacity would have to be advertised at around 1050mAh, meaning it lasts half the time it does now, and will need charging around twice as often.
For a mobile phone with a typical 2 year life span, the priority is to maximum the time between charges while ensuring the battery lasts the typical 2 years of most peoples phone contracts. It isn't a co-incidence that 800 charges works out as a bit over 2 years if you charge every day.
We don't need to worry about the battery, just enjoy using the phone. Also the battery doesn't just stop working at 800 cycles either, it just doesn't hold as much charge, but capacity is lost anyway over time regardless if you use it or not as lithium batteries start to age the moment they are made.
Regards
Phil
PhilipL said:
For a mobile phone with a typical 2 year life span, the priority is to maximum the time between charges while ensuring the battery lasts the typical 2 years of most peoples phone contracts. It isn't a co-incidence that 800 charges works out as a bit over 2 years if you charge every day.
We don't need to worry about the battery, just enjoy using the phone.
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Click to collapse
A lot of assumptions there, Phil.
My "priorities" and LG's differ. 2 years from now, some will replace their Nexus 4 with whatever shiny new phone comes along that offers holographic video projection chat and does double duty as a sex robot. However, I will happily trudge on with my Nexus 4 for between 3 to 5 years which is how long I typically own a phone before replacement. I don't need bleeding edge, especially if the bleeding edge is a menstruating sex robot phone. Just sayin'.
We don't know if the Nexus 4 battery replacement will turn out to be either very costly and/or difficult. For those of us who don't plan to toss our Nexus 4 into a landfill two years from now, it pays to know what measures we can take to prolong battery longevity.
'Maximizing Nexus 4 battery'
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'Menstruating sex robot'
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Hmmmm....how did that happen...
I don't know if we will really know how good the battery longevity is in this thing until the device is a year old or more. Lithium polymer technology varies a lot. There have been a lot of advances with this tech in the last few years and some companies claim to have developed manufacturing techniques that allow THOUSANDS of charge before noticeable drops in batty capacity. Other technologies developed include the tech Apple uses and advertised in its MacBook line a few years ago that claimed longer battery life and very fast charging compared to Lithium Ion batteries. It all varies. LG claims to have some special tech baked into this battery that allows it to charge to a higher voltage compared to batteries of similar size, but I don't know how long its life is rated at.
666fff said:
'Maximizing Nexus 4 battery'
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'Menstruating sex robot'
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Hmmmm....how did that happen...
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You apparently haven't seen the leaked mock-up of the Nexus 6.
borntochill said:
You apparently haven't seen the leaked mock-up of the Nexus 6.
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I would consider an early upgrade for a menstruating Daryl Hannah any day
The Note 8 promised long battery service life, that is, high maintenance of original charge. Samsung promised that after a year, the battery would still retain 95% of its original capacity. Using Accubattery, my Note 8 has achieved this. This is vastly superior to what I experienced with the battery on my Galaxy S7.
I don't know much about batteries, but from owning Thinkpad laptops, I know you can get long service life from a lithium battery by deliberately not allowing it to charge to 100% of rated capacity (this is a setting in the Thinkpad battery firmware, accessible from Windows or Linux). If this is the same way that Samsung did this, it means the Note 8 battery has more capacity than it reports. (3300 mAh), achieving long service life by undercharging. This would mean that Samsung gets weaker reviews since out of the box it offers less runtime, but owners get the benefit of sustained runtime compared with previous phones. A pretty courageous move, if my speculation is true. The other possibility is that the Note 8/ Galaxy 8 has some very high spec battery technology which is significantly less exposed to typical capacity degradation.
So now, the Note 9 has a 4000 mAh battery but with almost no change in dimensions, which is curious. Is Samsung still claiming the long service life that it claimed in the Note 8/ Galaxy 8 generation?
I would like to know the answer to this as well.
The device is thicker and wider and 700mah isnt THAT much more physical size wise. But why wouldn't their claims on battery longevity still hold up?
timrichardson said:
The Note 8 promised long battery service life, that is, high maintenance of original charge. Samsung promised that after a year, the battery would still retain 95% of its original capacity. Using Accubattery, my Note 8 has achieved this. This is vastly superior to what I experienced with the battery on my Galaxy S7.
I don't know much about batteries, but from owning Thinkpad laptops, I know you can get long service life from a lithium battery by deliberately not allowing it to charge to 100% of rated capacity (this is a setting in the Thinkpad battery firmware, accessible from Windows or Linux). If this is the same way that Samsung did this, it means the Note 8 battery has more capacity than it reports. (3300 mAh), achieving long service life by undercharging. This would mean that Samsung gets weaker reviews since out of the box it offers less runtime, but owners get the benefit of sustained runtime compared with previous phones. A pretty courageous move, if my speculation is true. The other possibility is that the Note 8/ Galaxy 8 has some very high spec battery technology which is significantly less exposed to typical capacity degradation.
So now, the Note 9 has a 4000 mAh battery but with almost no change in dimensions, which is curious. Is Samsung still claiming the long service life that it claimed in the Note 8/ Galaxy 8 generation?
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Click to collapse
I actually didn't find the same situation to be the case on my S8. I found that at new, the battery could pull close to 6h SOT, and after 500 cycles or so (checked with Phone INFO app), it was closer to 3.5-4h. Not that 4h is a bad figure, and it was still fairly respectable, but it is not 95% retained. Same for my mom's S8, at first was doing 6.5-7h, and now is pulling closer to 3h. I got my battery replaced under warranty at the 1 year mark, but my mom hasn't and it's starting to show.
AB__CD said:
I actually didn't find the same situation to be the case on my S8. I found that at new, the battery could pull close to 6h SOT, and after 500 cycles or so (checked with Phone INFO app), it was closer to 3.5-4h. Not that 4h is a bad figure, and it was still fairly respectable, but it is not 95% retained. Same for my mom's S8, at first was doing 6.5-7h, and now is pulling closer to 3h. I got my battery replaced under warranty at the 1 year mark, but my mom hasn't and it's starting to show.
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It might be a bad software update. My Note 8 battery started to suffer until I upgraded to Oreo. Maybe some thing to do with refreshing the battery meter.
AB__CD said:
I actually didn't find the same situation to be the case on my S8. I found that at new, the battery could pull close to 6h SOT, and after 500 cycles or so (checked with Phone INFO app), it was closer to 3.5-4h. Not that 4h is a bad figure, and it was still fairly respectable, but it is not 95% retained. Same for my mom's S8, at first was doing 6.5-7h, and now is pulling closer to 3h. I got my battery replaced under warranty at the 1 year mark, but my mom hasn't and it's starting to show.
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The long battery life technology was for the note 8 and going forward, not the s8.
mike2518 said:
The long battery life technology was for the note 8 and going forward, not the s8.
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It was claimed by Samsung for S8/S8+ as well.
https://www.androidpolice.com/2017/...ill-degrade-less-quickly-than-the-galaxy-s7s/
timrichardson said:
So now, the Note 9 has a 4000 mAh battery but with almost no change in dimensions, which is curious. Is Samsung still claiming the long service life that it claimed in the Note 8/ Galaxy 8 generation?
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Have we seen any official documentation of retaining that 95% battery in Samsung product webpages or leaflets/warranty information??
It was all about official "Claims" for the S8/S8+/Note 8.
Samsung haven't made the same "claim" for the Note 9 yet. Probably will, without mentioning in any official documentation/product pages.
mike2518 said:
The long battery life technology was for the note 8 and going forward, not the s8.
Click to expand...
Click to collapse
https://www.androidpolice.com/2017/...ill-degrade-less-quickly-than-the-galaxy-s7s/
pcriz said:
The device is thicker and wider and 700mah isnt THAT much more physical size wise. But why wouldn't their claims on battery longevity still hold up?
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Yeah, it wpoould be best if they included 5.000mAh but 4.000 mAh is still acceptable.
I'd like to know how other's batteries are holding up. I've had my 9 for a month or two now and AccuBattery Pro is showing my battery health as 97% (3882mah) already. I'm not sure how reliable that app is for that stat, but dropping 3% already kind of has me irked a bit.
The only thing i have noticed is when my s7edge and s8+ got oreo my battery life on both those devices was no where near when i first got them. As for my note 9 the max SOT i have gotten so far is 8 hours and 12 min in QHD, i was sitting at 11% battery before i plugged it in.
I have the Mate 20 Pro and it absolutely smashes everything out there. It has outstanding battery life
RockwellB1 said:
I'd like to know how other's batteries are holding up. I've had my 9 for a month or two now and AccuBattery Pro is showing my battery health as 97% (3882mah) already. I'm not sure how reliable that app is for that stat, but dropping 3% already kind of has me irked a bit.
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There was a semi big debate about this on this forum. Accubattery Pro doesn't apparantly show the correct figure from the get go. I'm assuming you didn't use Accubattery from day one to show the before health stats to current? I say this because from day one mine showed 97% health or lower.
Aida64 app also shows the battery capacity at below 4000mAh from new. Hence why Accubattery doesn't show 100% health .
Either Samsung has not implemented 4000mAh batteries in many devices or they are designed in such a way as not to show their actual values in apps.
Sent from my SM-N960U1 using Tapatalk
My Note 9 is 5 days old, and Accubattery says 94%. It's nonsense.
So basically AccuBattery on the 9 is only really good for the charge alarm it sounds like. That makes me feel a bit better. Either way I get great performance so I'm pretty happy with the phone. I normally get between 8 and 10 hours sot so it blows all my older phones except my Note 4 with 12000mah battery out of the water.
RockwellB1 said:
So basically AccuBattery on the 9 is only really good for the charge alarm it sounds like. That makes me feel a bit better. Either way I get great performance so I'm pretty happy with the phone. I normally get between 8 and 10 hours sot so it blows all my older phones except my Note 4 with 12000mah battery out of the water.
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Click to collapse
For alarm charge,discarge :
Battery Charge Notifier
https://play.google.com/store/apps/details?id=com.utopi.batterychargenotifier
Limeybastard said:
There was a semi big debate about this on this forum. Accubattery Pro doesn't apparantly show the correct figure from the get go. I'm assuming you didn't use Accubattery from day one to show the before health stats to current? I say this because from day one mine showed 97% health or lower.
Aida64 app also shows the battery capacity at below 4000mAh from new. Hence why Accubattery doesn't show 100% health .
Either Samsung has not implemented 4000mAh batteries in many devices or they are designed in such a way as not to show their actual values in apps.
Sent from my SM-N960U1 using Tapatalk
Click to expand...
Click to collapse
Those apps are just estimating. There is no hardware components for such accurate power usage observation in the phones to tell you exactly how much the battery degraded/hold in the first place. Don't trust them that much + battery life in long run is not affected only from the battery degradation, but also from updates and not least important - the applications themself that becomes heavier with every update = the CPU/GPU scales higher and that needs more power and thus shorten the battery life.
Simple example, my HTC M8 eat for breakfast every app back then when it was released. Messenger? NP! Facebook? Lol, 10% CPU usage. And so on. Nowdays it will still run all of those fluid and fine, but instead of 1500MHz 2 cores for example, will use 4 cores at 2000GHz. This affects power usage when it's all apps basically. So it's not just the battery degradation.
That should sum it up about the topic.
My note 9 is also around 94% battery since day one. But this was not the case with the Note 8. I was at around 103-105% battery capacity on the Note 8 for a long time.
It is an estimate and not perfectly accurate but Samsung does have the ability to measure battery wear.
On jailbroken iPhones you can get the exact wear percentage and now iOS has battery wear shown directly in battery settings.
ihaveabu said:
My note 9 is also around 94% battery since day one. But this was not the case with the Note 8. I was at around 103-105% battery capacity on the Note 8 for a long time.
It is an estimate and not perfectly accurate but Samsung does have the ability to measure battery wear.
On jailbroken iPhones you can get the exact wear percentage and now iOS has battery wear shown directly in battery settings.
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Click to collapse
Your first paragraph, same here. Hence why I mentioned either Samsung have changed something battery electronics wise or they are not giving us usable 4000mAh.
Sent from my SM-N960U1 using Tapatalk
Hello,
i've recently purchased a new Samsung Galaxy Tab S2. It looks like the tablet had been lying in stock for quite some time, as it only had 28% battery left when i powered it up. The first readings from the monitoring app i use (AccuBattery) estimated an effective capacity of around 5600 mAh out of the 5870 mAh design capacity (95% health). After one full charge cycle, i've been doing small cycles as is advised pretty much everywhere when dealing with Li-Ion batteries, never dropping below 20% and never going above 70%. A 50% charge cycle, from 20% to 70%, is worth 10% of a full cycle, according to the app.
Now here's the catch, in just 2 weeks of use, and what must have been 3 cycles' worth of charging tops, the battery health already dropped from 95% to 92%, and is now resting at 5421 mAh estimated capacity. The amount of mAh gained from a 50% charge also reflects this. It's also worth noting that the built in battery indicator shows the same percentages as the app, which would lead me to believe the readings are accurate, or at least that both are either right or wrong.
I find it highly unlikely a barely used battery could lose 3% of its capacity over the span of 2 weeks, so what gives? Could it be the infamous "memory effect" at work, even though Li-Ion batteries are supposed to not be affected by it? Or is the battery bad?
I'd like to shed some light on this topic, as there's a lot of contrasting opinions about it.
For you who use AccuBattery app to monitor your battery usage, can you share yours?
Because mine is showing my battery health is only 47%. I think it's maybe, just maybe, the app only read half of the battery capacity. Since this phone is actually have two batteries installed in a single pack of battery.
With this phone I got around 6 hours of screen on time with 70% battery usage (from 90 - 20%).
It's normal SOT for this phone right?
I attached my SS from the app. I use version 1.2.7-2 build 45.
Yeah yours are pretty normal. I have a similar results.
Maybe the 50 watt charging is degrading the battery at a rapid pace,
Maybe this app is not very accurate.
I've seen others complaining about this app with other phones but hopefully here it's just estimating one of the two batteries
andrejd1 said:
Yeah yours are pretty normal. I have a similar results.
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Click to collapse
Thanks for sharing. We have the same battery performance.
manus31 said:
Maybe the 50 watt charging is degrading the battery at a rapid pace,
Maybe this app is not very accurate.
I've seen others complaining about this app with other phones but hopefully here it's just estimating one of the two batteries
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Click to collapse
Pretty sure it's not because the rapid charging, if so the phone is a disaster.
The app is most possible reason.
smart_thingup said:
Thanks for sharing. We have the same battery performance.
Pretty sure it's not because the rapid charging, if so the phone is a disaster.
The app is most possible reason.
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Click to collapse
Here's hoping,I'm getting mine next week and I'm already very skeptical of the vooc charging,I've seen nothing from Realme or Oppo in regards to it's testing or how it affects the degradation of battery.Because of this and I want the battery to last a few years I will be charging with a 18w charger,using the vooc charger occasionally
manus31 said:
Here's hoping,I'm getting mine next week and I'm already very skeptical of the vooc charging,I've seen nothing from Realme or Oppo in regards to it's testing or how it affects the degradation of battery.Because of this and I want the battery to last a few years I will be charging with a 18w charger,using the vooc charger occasionally
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Click to collapse
At first I also skeptical about the Super VOOC charging, I think it will damage battery faster, especially because of heat while charging.
And then, turns out to be more make sense because it use dual battery. And with my experience using this phone, there's no heat problem while charging. Not from the hand feel and not from the system temparature reading.
Since the charging is super fast, I usually put the phone at idle for about 5 minutes to cool down the phone before charging and put on airplane mode while charging to prevent over hear and keep the battery as cool as possible. After several try different circumstances of charging condition, I think Super VOOC is doing just fine.
smart_thingup said:
At first I also skeptical about the Super VOOC charging, I think it will damage battery faster, especially because of heat while charging.
And then, turns out to be more make sense because it use dual battery. And with my experience using this phone, there's no heat problem while charging. Not from the hand feel and not from the system temparature reading.
Since the charging is super fast, I usually put the phone at idle for about 5 minutes to cool down the phone before charging and put on airplane mode while charging to prevent over hear and keep the battery as cool as possible. After several try different circumstances of charging condition, I think Super VOOC is doing just fine.
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I'm sure it's safe and all very good but I still think it will be too difficult to maintain the battery and make it last a few years. I like to keep the battery between around 40 to 85 and it's not recommend to fully charge modern phone batteries aswell as not fully draining them,there is only so many cycles for the batteries lifetime,around 500 or so,
here we have two batteries but still that does not matter,
I will be using in and around 18w charger but might try my OnePlus charger to see if that is any quicker to find a happy medium
manus31 said:
I'm sure it's safe and all very good but I still think it will be too difficult to maintain the battery and make it last a few years. I like to keep the battery between around 40 to 85 and it's not recommend to fully charge modern phone batteries aswell as not fully draining them,there is only so many cycles for the batteries lifetime,around 500 or so,
here we have two batteries but still that does not matter,
I will be using in and around 18w charger but might try my OnePlus charger to see if that is any quicker to find a happy medium
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OnePlus charger will give you VOOC charging. I think that will suit you.
smart_thingup said:
OnePlus charger will give you VOOC charging. I think that will suit you.
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Yes should give around 27 to 30 watt charge,that would be perfect.Wil test it and see,getting phone tomorrow according to my national post
manus31 said:
Yes should give around 27 to 30 watt charge,that would be perfect.Wil test it and see,getting phone tomorrow according to my national post
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Got phone today,the 50 watt charge is lightning fast,
My OnePlus 6T charger is also lightning,think it's about 27w charger. My 6T battery must have a problem as the charging has slowed over time on that. I'm only noticing again how fast the dash charger is on the X2 pro
Have been using Accubattery for few days now and have similar stats to you guys,48% battery health and estimated capacity of 1913mAh,
Maybe Accubattery can improve the software for these type of phones which have two separate batteries
have the same result. maybe an update with the app can result in a more accurate reading.
Guys it's normal, this phone has a battery made of 2 1950mAh cells that charge in parallel. This means that Accubattery (which reads the stats based on voltage and current) can only read a single cell charge.
I also read some strange comments here, so let's dismantle a myth: SuperVOOC WON'T damage your battery much more than normal fast charging. Having 50W on a single battery would be absurd, instead this power is distributed between the two cells, resulting in a charge of 5V and 5A per cell (pretty standard, 5V is super safe because it's the same as the cell voltage, and current is similar to other manufacturer quick charge currents). Having 5V input is also better for heat, because it doesn't need conversion (see Qualcomm Quickcharge which can input 5/9/12/15V).
Of course heat is the worst enemy of a battery life, but try not to use it while charging for those 25/30mins needed for a full charge and you'll be good to go.
I hope this clarifies things for people scared of using the boxed charger.
danypava said:
Guys it's normal, this phone has a battery made of 2 1950mAh cells that charge in parallel. This means that Accubattery (which reads the stats based on voltage and current) can only read a single cell charge.
I also read some strange comments here, so let's dismantle a myth: SuperVOOC WON'T damage your battery much more than normal fast charging. Having 50W on a single battery would be absurd, instead this power is distributed between the two cells, resulting in a charge of 5V and 5A per cell (pretty standard, 5V is super safe because it's the same as the cell voltage, and current is similar to other manufacturer quick charge currents). Having 5V input is also better for heat, because it doesn't need conversion (see Qualcomm Quickcharge which can input 5/9/12/15V).
Of course heat is the worst enemy of a battery life, but try not to use it while charging for those 25/30mins needed for a full charge and you'll be good to go.
I hope this clarifies things for people scared of using the boxed charger.
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I was a bit apprehensive about the super vooc at the start but I've only ever used it since I got the phone. I will say it's so much more useful for my use a d I can literally charge it twice a day for 10 to 15 minutes each time.Phone does heat up quite a bit though,like it's warm every time I take it off the charge.
I'm just hoping it will be as quick this time next year and the battery holds out
danypava said:
Guys it's normal, this phone has a battery made of 2 1950mAh cells that charge in parallel. This means that Accubattery (which reads the stats based on voltage and current) can only read a single cell charge.
I also read some strange comments here, so let's dismantle a myth: SuperVOOC WON'T damage your battery much more than normal fast charging. *1 Having 50W on a single battery would be absurd, instead this power is distributed between the two cells, resulting in a charge of 5V and 5A per cell (pretty standard,*2 5V is super safe because it's the same as the cell voltage, and current is similar to other manufacturer quick charge currents). Having 5V input is also better for heat, because it doesn't need conversion (see Qualcomm Quickcharge which can input 5/9/12/15V).
Of course *3 heat is the worst enemy of a battery life, but try not to use it while charging for those 25/30mins needed for a full charge and you'll be good to go.
I hope this clarifies things for people scared of using the boxed charger.
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*1 - could you elaborate on this here a tad bit more? What is the advantage of pumping power into two cells with total capacity of 4A/h put next to running a single cell with the same amount of power, with the cell being 4A/h too?
*2
This is simply not true. Mass production liPo cells are manufactured with 3.7V nominal voltage, 3V min. voltage and 4.2V max. voltage. When discharging a li-po cell your under-load voltage wouldn't zap anywhere outside the range of 3 - 4.2 volts at any point. If it did you would be saying ciao to that cell in the upcoming month.
According to what Ive learned past the last 12years of dealing with LiPos in my radio controlled aircrafts and, cell phones, smartphones, battery banks and so on and so on.. I am yet to see a mass production lithium cell whose "cell voltage" is 5 volts..? Sooo.. where do you get that from?
Do you have the kind of information that I am struggling to find on the inet right now? Such as who is the outsourced manufacturer of cells for realme? What is the grouping method of the two cells in our x2pro when charging - parallel or series?
The answer on the later two questions will paint it all as to what can we expect from the battery in our phones for the forseeable future.
*3
Heat is the result of charging and discharging the cell at higher than usually considered healthy charging and discharging rates. As far as Im concerned I don't think that realme are in possession of any advanced battery tech, and would be much more oriented towards trustworthy tested day in-day out type of chemistry in their batteries. Specially at the price point of my x2pro.
Taking into consideration that I can only conclude that realme are driving these cells at their maximum tolerance of charging current. I would be pretty entertained if the juice in this device is satisfactory past the 2 year mark. And shocked at the same time.
This has been spoke about before by oppo themselves and is available on the internet, it's 2x batteries at 2000mah each... The batteries are charged at the same time but independently and each battery is monitored at all times for heat etc... Total voltage is split between both to not apply to much pressure and as the batteries are 2000mah each it's obviously Parallel as you get total 4000mah.
Realme x2 pro has two batteries
Hey guys hope you are aware that realme x2 pro has 2 batteries of approximately 2000mah each and not one single 4000mah battery. That is what gives it the charging speed and the battery health is not affected because of the ingenious way VOOC works. You can watch the video on youtube. AccuBattery is not designed for phones with two batteries. Maybe we can expect compatibility for realme x2 pro in a future update.
Ab97 said:
Hey guys hope you are aware that realme x2 pro has 2 batteries of approximately 2000mah each and not one single 4000mah battery. That is what gives it the charging speed and the battery health is not affected because of the ingenious way VOOC works. You can watch the video on youtube. AccuBattery is not designed for phones with two batteries. Maybe we can expect compatibility for realme x2 pro in a future update.
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Just declare it as 2000 mAh and you're good.
I have been using my brand new Tab S8 5G for 8 days or so. I have AccuBattery installed. The estimated battery capacity has been very low from Day 1. Currently I get:
Battery Health 87%
Estimated Capacity 6759mAh
Design Capacity 7760mAh
Based on 31 sessions 1031% charged for 69688mAh
I understand it takes a few days for AccuBattery to function accurately, but I think it's been enough. The design capacity has been automatically measured and already adjusted to a lower value than what Samsung advertise (8000mAh). I've also installed 3C Battery Monitor app, but the estimate is very similar (3718). I have bought 2 other (non-Samsung) android devices in the past few months, but their estimated capacities are much closer than 100%.
Has anyone expericed the same? Or do you think mine is a bad lemon and should be returned? Any insight would be much appreciated! Cheers.
Are you charging to 100% or just 85% (battery save option). If you charge up only to 85% then it is accurate.
Thanks! That's a very good question. I have used the 85% charging limit option for a couple of days but left it off for the majority of time.
But wouldn't it be the same from AccuBattery's point of view if you used the option or not, as the tab tells the app 85% as 85% not as 100%? (or maybe my assumption is wrong).
I have since updated AccuBattery (which cleared all my history!) and started self- recalibrating the app as their website suggests (you go down as low as you can, and start charging until drawing ampere really finishes at over 100%). After a few iterations, hopefully the app will show more accurate info. (Or not, I will just come terms with it!)
https://accubattery.zendesk.com/hc/en-us/articles/213575425-How-to-manually-benchmark-your-battery-health
İ think accubattery calculates with the Design capacity of the device, with the the Option to charge up to only 85% you would have charged up to 6800mah vs. 8000mah 100%. But i could be wrong too
Just not to open another thread. I have a similar situation with my tab s8+. All apps that do something hardware/battery related report the battery to be 9800mah and not the Samsung claimed
10090.
As for now I'm letting sccubattery do its reading, but so far battery life has been ok for a tablet with high end Specifications. On average I get 8 to 9h of SoT on average not very demanding usage.
Yes my S8 has also a considerable difference between Samsung's advertised battery capacity (8000 mah) vs the capacity apps like AccuBattery read (7760 mah). That's probably their way to prevent users from overcharging their devices.
On top of it, I have also found that my tab can go quite a bit after showing 100% charged. Following AccuBattery's re-calibrating (re-benchmarking) method l mentioned earlier, in one charging episode I saw my tab going up to 8700 mah or so until it started showing 0 or negative charging values about 40 mins after it showed 100%. Having overcharged my tab a few times this way, AccuBattery now shows about 100% for battery health. Obviously this isn't a good way to charge your battery in terms of its longevity, but it might help to calibrate your new device with a battery app. When the % reaches 100%, the estimated capacity on AccuBattery is normally much lower, something like 6700 mah, as I initially got. I need to do more tests, but I find the leeway Samsung spare is a bit too much.
Interestingly, I have also found quite a bit of variability in this 'fake 100% battery' setting across different manufacturers (or at least different devices). I am applying the same recalibration process on my Xiaomi Pad 5 Pro and OnePlus 8T. They are both about 9 months old. My OnePlus behaves somewhat similarly with my Tab S8, showing about 10% extra capacity after 100%, whereas my Xiaomi really stops charging when it reaches 100%.
Hey. This is my stats on my S8+. I recommend trying to completely discharge the battery to 0%, charge to 100% and wait until current is 0 mA. Do this min 3 times in row. Then you will get a more accurate reading