Database Develop

[OPINION] Do not overcharge battery!

Hi all!
I was browsing through Samsung Galaxy S's Android Development Section when I saw this:
"11. Do NOT overcharge
--Why, when, where: Almost all new batteries have an overcharging protection. This means that the protection that is built into the battery will not let it charge to 100%. This is a feature, not a bug! This will help prolong your battery life while also keeping it safe from overheating/explosion/etc. Do not try to trick it and unplug and plug again until you see 100%, just get used to the fact that you can't have 100% battery anymore and live with it, or you risk destroying your battery."
posted by user "shantzu"
here:http://forum.xda-developers.com/showthread.php?t=939752
I did "calibrate" my battery many times lately by unplugging it when charging and the replugging it. But I sure know I wont do it anymore! It's your choice whether or not you wanna do it!
I just wanted you to know this! Hope I've been helpful!

Cool story bro
Sent from my Dell Streak using XDA Premium App

pgill34 said:
Cool story bro
Sent from my Dell Streak using XDA Premium App
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+1, blablabla (sorry msg needed to be +10 characters, but it's more now and more and more and more )

eXtink said:
+1, blablabla (sorry msg needed to be +10 characters, but it's more now and more and more and more )
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I didnt say this. I just quoted and I said that I wont charge my phone to 100% with the plug-unplug way. So if you take my advise do so, if you don't want to take it please stop posting ****!

vladstercr said:
I didnt say this. I just quoted and I said that I wont charge my phone to 100% with the plug-unplug way. So if you take my advise do so, if you don't want to take it please stop posting ****!
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I dont think he was posting ****. He just wanted to post "+1" (as in "me too"), but needed to respect the minimum character limit for a post.
Badly worded, but it doesnt look like he was making fun of you or anything.
Sent from my Milestone using Tapatalk

I love this thread already
Isn't calibrating the battery all about fixing an Android bug?
Anyway, this reminds me, the Milestone overstates the full charge mV and underestimates the low battery mV.
So, if Battery Monitor Widget reports that I have 4230mV when it's fully charge and plugged in... it's really only 4170mV.
When it's reporting empty at 3200mV, it's really at 3300mV.
http://www.android-hilfe.de/root-ha...ku-infos-ladekurven-leistungsverbraucher.html
Externally measured or indication of the internal voltage measurement
3.30 volts / 3.20 volts
4.12 volts / 4.18 volts
That is, the stone over-estimated the voltage at the battery is full by ~ 60 mV and underestimated the power of up to 100 mV with an empty battery. The intent is well-battery protection (which is good too). It is pretended that 3.0 and 4.2 volts to discharge until it is loaded. In reality, there are more 3.1 volts and 4.15 volts (which by the way of battery manufacturers also better unanimous opinion!).
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Apparently, we are still protected even if we do calibrate the battery.
I'm pretty sure that Payce at android-hilfe actually took that battery out of his phone so I'll go with that.

Thanks for sharing

Good article

Over charging doesn't effect Lithium Ion batterys;
http://en.wikipedia.org/wiki/Lithium-ion_battery

DannyDroid said:
Over charging doesn't effect Lithium Ion batterys;
http://en.wikipedia.org/wiki/Lithium-ion_battery
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Gee thank you! I just wanted to start correcting this non-sense. The "overcharging" affects Lithium-Polymer batteries, not Lithium-Ion, so calibrating battery is HARMLESS!!!!
If you have a Samsung Galaxy S then you have this possibility.
I think we can close this thread.

Actually you can overcharge (any) battery, charging it to the higher voltages for higher capacity when used daily (as cell phones).
However it lowers total lifetime of the battery, but you can get more battery time.
But this isn't the cell phones' thing. IMHO charging circuit + circuits in battery won't allow you to do this. So you can't really overcharge.
This "calibrating" is even suggested by notebook manufacturers - you have to do full discharge -> full charge to set the voltage "limits" for 0% and 100%, so the battery indicator can estimate the remaining battery % precisely.
Just few quotations from http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries to support my opinions:
"In terms of optimal longevity, a charge voltage limit of 3.92V/cell works best but the capacity would be low."
"Should I disconnect my laptop from the power grid when not in use? Under normal circumstances this should not be necessary because once the lithium-ion battery is full, a correctly functioning charger will discontinue the charge and will only engage when the battery voltage drops to a low level."
"Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles other than to calibrate the fuel gauge on a smart battery."

The milestone has a Lithium-ion polymer battery which looks like they do suffer from over charging.
"It is important to note that trickle charging is not acceptable for lithium batteries; Li-ion chemistry cannot accept an overcharge without causing damage to the cell, possibly plating out lithium metal and becoming hazardous.[5] Most manufacturers claim a maximum and minimum voltage of 4.23 and 3.0 volts per cell. Taking any cell outside these limits can reduce the cell's capacity and ability to deliver full rated current.
Most dedicated lithium polymer chargers use a charge timer for safety; this cuts the charge after a predefined time (typically 90 minutes)."
http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery
Someone will have to dig deeper into the OEM charger to see if it has some sort of cut off.

the thing with timer seems pretty weird to me. Try charging your battery with very little current - why should you cut it off after 90 minutes? Makes no sense to me, but I'm not an engineer so there may be a fact I overlook.
At the same time with noting overcharge will damage battery cell you should point out that there is no way to overcharge the battery without charging the battery CELLS itselves (not whole battery pack with its circuitry) with your custom charger without monitoring voltage/current.
However - yes, you're right, battery cells can be damaged.

I assume it would be the charging unit itself (i.e. the plug) which as the 90min cut off.
Charging via a USB takes ages (supplied at 5V) and without the "plug" it prob wouldn't have a cut off so the chances of over charging would be higher but would require leaving it in for longer.
I'm not sure, I'm only a first year electriton and haven't touched on batterys.

DannyDroid said:
Charging via a USB takes ages (supplied at 5V)
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The "plug" is just 230V~ -> 5V- transformer so the only difference is current, supplied voltage is the same. Btw I leave my phone in cradle for extended periods of time (24h+) and nothing bad happened. When it's at 100% it stops charging so I don't expect anything to happen.
Same with notebooks - it charges to 100% and stops. E.g. HP does stop charging until battery level drops to 90% so it won't "trickle charge" or do many 99%->100% cycles. Dunno how does the phone charging work, because it says 100% all the time. This can be possibly a bad thing

Concerning the Nexus 5 battery, how do you recharge your device?

Hi guys, good afternoon, how are you?
As I was looking after the Nexus 5 and the battery life of the device began to get discussed, I was unaware of the fact that nowadays we can just charge the device however we like, using Lithium-ion polymer batteries, different from the past, when a full recharge was recommended for the battery performance not get affected.
Considering that, for some users the battery life shouldn't be a concern, mainly for those who have a power outlet nearby, making an option to recharge it at any % level before getting it to fully recharge during the night.
I'd like to know from you guys: how do you recharge your devices? Do you wait for it to drain every % of the battery before recharging it or just plug it on the power outlet whenever needed?
Also, do you guys believe that recharging it at any % level does not affect battery performance?
Thanks a lot!

Modern batteries have a finite number of charging cycles before they being to lose performance. Generally speaking, 100%-0% is one discharge cycle, so if you want to maximize battery longevity you should do your best to minimize the number of discharge cycles you subject the battery to. It is not strictly speaking a direct relationship, but the battery should last longer if you charge it when it reaches 50% as opposed to 0% (that would qualify as "half" a discharge cycle).
When I'm using my device heavily and I have access to an outlet, I leave it plugged in. That saves on discharge cycles. Also, when I am sitting at my desk at work I generally keep it plugged in.
The following link is an excellent source of information regarding batteries:
http://batteryuniversity.com/learn/

right now with my current phone i'll usually just top it off after work from a wall outlet, or top it off in the morning when i wake up and get ready for work. i also have a usb cable at work to top off whenever needed throughout the day. i try to keep the battery over 50% most of the time, just because, but i rarely leave it plugged in throughout the entire night, and this is even with running sleep tracking apps. i imagine battery use/charging will be the same with the nexus 5 -- topping off in the morning while getting ready for work, maybe charge a bit while at work via usb cable, and topping off after work via wall outlet.
i guess i charge my battery in intervals throughout the day, instead of the daily 8 hour overnight charge. however, i usually keep it at least half full

Plug it in at night before I go to sleep.
If i'm using it heavily and it gets below 50%, I'll plug it in.
Some days at the office I'll plug it in about an hour before I leave so it'll be almost 100% after work.
If i'm going somewhere and feel I may run the battery down before I get home, I'll carry my portable charger with me (Anker 5600mAh).

matthewr87 said:
Modern batteries have a finite number of charging cycles before they being to lose performance. Generally speaking, 100%-0% is one discharge cycle, so if you want to maximize battery longevity you should do your best to minimize the number of discharge cycles you subject the battery to. It is not strictly speaking a direct relationship, but the battery should last longer if you charge it when it reaches 50% as opposed to 0% (that would qualify as "half" a discharge cycle).
When I'm using my device heavily and I have access to an outlet, I leave it plugged in. That saves on discharge cycles. Also, when I am sitting at my desk at work I generally keep it plugged in.
The following link is an excellent source of information regarding batteries:
http://batteryuniversity.com/learn/
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Wouldn't heavy usage while its charging put too much heat on the battery? Which is worse for it then worrying about charge cycles?

I do a backflip spin 360 before charging my phone...

thfreedumb said:
Wouldn't heavy usage while its charging put too much heat on the battery? Which is worse for it then worrying about charge cycles?
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It depends whether/how much heat is generated during heavy usage. On my N7 while browsing the net or watching videos the heat is non-existent. Certain games cause more heat than others. If the device starts to become "hot" then yeah, keeping it plugged in will only exacerbate the problem.
Also, having a case on the device can increase heat soak.
It depends on the situation.
You are right though that heat is the enemy when it comes to batteries. About an hour in my back-back on a beach on Oahu killed my GNex battery, and it was in the shade too.

I plug mine into a wall charger or my laptop...

At the end of the day though, if you don't bake or freeze your phone, the battery should last at least a couple of years without losing too much capacity I think.
The battery longevity discussion with mobile devices is similar to the oil change debate in automotive circles. Some people swear by certain brands and oil change intervals, whilst others just buy what is on sale and change the oil when the car tells them too. It probably makes very little difference in the end.

Yakandu said:
I do a backflip spin 360 before charging my phone...
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Mr.Mischief said:
I plug mine into a wall charger or my laptop...
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Smart alecks. Granted, I got a chuckle.
To OP:
Today's lithium ion batteries are way better than what they were 10 years ago. As posted above, go to battery university and learn all about it. My advice? Don't worry about special ways to charge your phone. You'll break, sell, or permanently store this phone long before your battery gives out due to charge cycles.

matthewr87 said:
Modern batteries have a finite number of charging cycles before they being to lose performance. Generally speaking, 100%-0% is one discharge cycle, so if you want to maximize battery longevity you should do your best to minimize the number of discharge cycles you subject the battery to. It is not strictly speaking a direct relationship, but the battery should last longer if you charge it when it reaches 50% as opposed to 0% (that would qualify as "half" a discharge cycle).
When I'm using my device heavily and I have access to an outlet, I leave it plugged in. That saves on discharge cycles. Also, when I am sitting at my desk at work I generally keep it plugged in.
The following link is an excellent source of information regarding batteries:
http://batteryuniversity.com/learn/
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Click to collapse
This!
Once upon a time I used to wait till my phone drained to 0-5% before I charged it. But I quickly realized that doing so turned my battery into trash.
So now with my 2 latest phones I usually charge it when they are at 30-40% or higher if possible and not only do I get excellent battery time but also its lifespan & performance doesn't deteriorate over time.
Sent from my C6903 using Tapatalk

The only advice you need: DO NOT FULLY DISCHARGE LI-ION BATTERIES. These aren't NiCads, you do not need to power-cycle them periodically.
For best Li-ion life, try and avoid discharging below 20% or above 80%. Manufacturers will often add some 'headroom' to the 100% level (so that a battery that reads 100% is actually only charged to 80%-90% of capacity) in order to maximise longevity. within that range, charging and discharing will have little effect on battery life. charge and discharge rates do have an effect, but again ythe battery controller will limit these to prevent damage to the battery, so this is not something you need to worry about yourself.
Keep the battery topped up and avoid discharging it completely. Anything else is hocus-pocus or incorrect advice for the wrong battery chemistry.

i replace my phone once a year so i dont bother with saving the battery etc.. ive never had any measurable degradation to the battery the way i charge in less than a year. I usually charge it from what ever % its at to full. Most of the day at work it stays on my wireless charger, but it stops charging it after its full.

Thanks everyone for the feedback this far, in just a couple of minutes I already learned a lot.
Please let's continue the talk and vote if you can!
Thanks again.

On the charger before reaching 10%, around 20% or higher if it's possible.

EdZ said:
The only advice you need: DO NOT FULLY DISCHARGE LI-ION BATTERIES. These aren't NiCads, you do not need to power-cycle them periodically.
For best Li-ion life, try and avoid discharging below 20% or above 80%. Manufacturers will often add some 'headroom' to the 100% level (so that a battery that reads 100% is actually only charged to 80%-90% of capacity) in order to maximise longevity. within that range, charging and discharing will have little effect on battery life. charge and discharge rates do have an effect, but again ythe battery controller will limit these to prevent damage to the battery, so this is not something you need to worry about yourself.
Keep the battery topped up and avoid discharging it completely. Anything else is hocus-pocus or incorrect advice for the wrong battery chemistry.
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this +1.
I put emphasis on 'so this is not something you need to worry about yourself'.

EdZ said:
The only advice you need: DO NOT FULLY DISCHARGE LI-ION BATTERIES. These aren't NiCads, you do not need to power-cycle them periodically.
For best Li-ion life, try and avoid discharging below 20% or above 80%. Manufacturers will often add some 'headroom' to the 100% level (so that a battery that reads 100% is actually only charged to 80%-90% of capacity) in order to maximise longevity. within that range, charging and discharing will have little effect on battery life. charge and discharge rates do have an effect, but again ythe battery controller will limit these to prevent damage to the battery, so this is not something you need to worry about yourself.
Keep the battery topped up and avoid discharging it completely. Anything else is hocus-pocus or incorrect advice for the wrong battery chemistry.
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BoneXDA said:
On the charger before reaching 10%, around 20% or higher if it's possible.
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Thanks to this two people.
Before i read this, me always charge the @ 10% or below.
+1 :good:

I just discharge to 20%-40%, then charge it with the included charger overnight...
I've tried using slow chargers but didn't really make the battery any better.
I agree that discharging it fully is bad. Very bad.
I just charge it how it's mean to be charged and I don't have any problems
Sent from my Nexus 5 using Tapatalk

I've been charging wrong this whole time! Will start charging before I hit 10% from now on. Glad I saw this, just got a new phone and am hoping to keep it for as long as possible...

I charge it every night because I have to use it all day.
Sent from my Nexus 5 using Tapatalk

Turbo Charger on Overnight?

I always charge my phones overnight when I go to bed. Not that it takes that long for a battery to charge, it's just when it's convenient. And I'm sure I'm not the only one who does this.
My question is if the Turbo Charger that comes with the phone will hurt the battery long term if I keep it plugged in all night. Or is is smart enough to shut off and/or lower it's power draw from the wall. I know a lot of people have hypothesized that the battery will have a shorter life cycle with the abuse the Turbo Charger will deliver time and time again.

Can't answer your question specifically, but read where the phone fast charges up until a certain percentage is left. I'm thinking that it fast charges up to 75 or 80%, then reverts to the regular slow charge.
Sent from my XT1254 using Tapatalk

Kayak83 said:
I always charge my phones overnight when I go to bed. Not that it takes that long for a battery to charge, it's just when it's convenient. And I'm sure I'm not the only one who does this.
My question is if the Turbo Charger that comes with the phone will hurt the battery long term if I keep it plugged in all night. Or is is smart enough to shut off and/or lower it's power draw from the wall. I know a lot of people have hypothesized that the battery will have a shorter life cycle with the abuse the Turbo Charger will deliver time and time again.
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Going forward, a huge number of phones are going to support Snapdragons Quick charge technology, the turbo is not the first nor will it be the last that will have this feature. I am no expert on this, but I HIGHLY doubt that Moto (and all of the other companies that will be supporting this technology) would package a charger with a phone and advertise this feature if it has the possibility of damaging the battery.
I plug my phone in every night like you, personally I am not going to worry about it. I think a lot of people charge their phones when they go to bed as well, I have to imagine the engineers thought this one through.

Manjews said:
Going forward, a huge number of phones are going to support Snapdragons Quick charge technology, the turbo is not the first nor will it be the last that will have this feature. I am no expert on this, but I HIGHLY doubt that Moto (and all of the other companies that will be supporting this technology) would package a charger with a phone and advertise this feature if it has the possibility of damaging the battery.
I plug my phone in every night like you, personally I am not going to worry about it. I think a lot of people charge their phones when they go to bed as well, I have to imagine the engineers thought this one through.
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Kayak83 said:
I always charge my phones overnight when I go to bed. Not that it takes that long for a battery to charge, it's just when it's convenient. And I'm sure I'm not the only one who does this.
My question is if the Turbo Charger that comes with the phone will hurt the battery long term if I keep it plugged in all night. Or is is smart enough to shut off and/or lower it's power draw from the wall. I know a lot of people have hypothesized that the battery will have a shorter life cycle with the abuse the Turbo Charger will deliver time and time again.
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I'm agree in the part that I highly doubt that companies put harmful accessories with their products, it won't make any sense.
frankeegee said:
Can't answer your question specifically, but read where the phone fast charges up until a certain percentage is left. I'm thinking that it fast charges up to 75 or 80%, then reverts to the regular slow charge.
Sent from my XT1254 using Tapatalk
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I noted that the phone gets real hot when charging until 80%, and then it starts to cool down, maybe is because of what you said.

I plan on using a regular charger for overnight, and keep my turbo charger at work for my long shifts. Just in case.
Sent from my SCH-I535 using XDA Free mobile app

I have been using the turbo charger daily since the release. I too have my phone charge overnight with it and haven't encountered any negative effects or problems at all. The phone cools down for me after 60%. This cpu and charger are intelligent in handling the voltage and what not to not harm battery. If it was harmful then qualcomm wouldn't be inputing so much research and tests to have a stable version of quick charge. Keep that in mind too

Been using quick charging for 6 months including plugging in overnight while breaking every rule about charging batteries with no noticeable losses. As stated quick charging only goes at full speed during the first part of the charge, 70 percent is often mentioned. In practice the full charge phase is dependent on battery temp which is monitored per cell and other factors. I recall reading that such charging has a theoretical perfect world capability of charging 1amp in 6 minutes and we are nowhere near that. There is a lot of research and testing in quicker charging methodology and it has been in use in other areas for several years, I'm thinking there isn't much to be concerned over in any aspect of it.
Edit, just an FYI... My Oppo charger works on the Maxx and the Maxx charger works on the Find 7, I get full speed with either charger on either device. I have one of the Verizon car quick chargers and I can confirm it also works on both devices and charges full speed. Nice to know we can do some mix and match on these.

normal charger

Hello
Bit of random one but can I charge my nexus 6 with a normal charger say my old Samsung s4 charger?
Don't want to damage my battery or phone but can't see why it would but would rather check.
I'm guessing it will just take longer to charge?
Cheers lee

leekeene said:
Hello
Bit of random one but can I charge my nexus 6 with a normal charger say my old Samsung s4 charger?
Don't want to damage my battery or phone but can't see why it would but would rather check.
I'm guessing it will just take longer to charge?
Cheers lee
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sure, you can use any compatible charger. but to warn you, most normal phone chargers will just take MUCH longer to charge the n6.

Yea no worries on the time. Thinking slower charge over night might be better than leaving it plugged in fully charged for longer. Plus I'm a believer about running battery flat for the first few charges and only have a normal charger at work which is when it will run out next lol

leekeene said:
Yea no worries on the time. Thinking slower charge over night might be better than leaving it plugged in fully charged for longer. Plus I'm a believer about running battery flat for the first few charges and only have a normal charger at work which is when it will run out next lol
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1) You *cannot* run the battery flat. The battery chip WILL shut you down when the voltage drops below a certain threshold.
2) Li-ion batteries DO NOT do well with being deep cycled. The lower you let it drop, the shorter the battery life. This is one of the reasons why they shut you down before it goes flat.
3) The battery has to have a minimum voltage in order to power the circuit that controls charging. Yes, if the battery level drops too low, YOU CAN'T EVEN RECHARGE IT.
It is better for the battery to charge slowly, and to top up frequently.

Realme X2 Pro Battery Health - AccuBattery App

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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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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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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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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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
Click to expand...
Click to collapse
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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Click to collapse
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
Click to expand...
Click to collapse
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.