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[Q] longevity of internal batteries on xperia devices?

Hi all,
I'm very interested in switching to the z3 compact yet my main concern is the built-in battery. I'm concern that the battery might fail after the 1 yr warranty has elapsed. If this happens; I'd be at the mercy of the sony service center. Replacing a built-in battery will definitely cost a lot more than just swapping out interchangeable batteries like I do now with my s4 mini.
The xperia Z line has been around for 2 years now if I'm not mistaken, can anyone share the battery health of their Z device after 1 or 2 years of constant use (those who recharge every night). after the 2nd year did you feel that the battery lasts far less than what is acceptable? and how much did it cost you to get it replaced? or you just sold it and bought a newer generation phone.

Chadie said:
Hi all,
I'm very interested in switching to the z3 compact yet my main concern is the built-in battery. I'm concern that the battery might fail after the 1 yr warranty has elapsed. If this happens; I'd be at the mercy of the sony service center. Replacing a built-in battery will definitely cost a lot more than just swapping out interchangeable batteries like I do now with my s4 mini.
The xperia Z line has been around for 2 years now if I'm not mistaken, can anyone share the battery health of their Z device after 1 or 2 years of constant use (those who recharge every night). after the 2nd year did you feel that the battery lasts far less than what is acceptable? and how much did it cost you to get it replaced? or you just sold it and bought a newer generation phone.
Click to expand...
Click to collapse
It all depends on the way you charge your batteries.
- If you repeatedly using your phone till it's dead or almost dead, then recharge to full, the longevity will be short.
- Longevity is also affected by the length of time it is connected to the charger, the shorter the better.
- If you keep it at 100% all the time, this will reduce longevity ( fully charged = highly stressed battery).
I learned the above from the site below, so more info there:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

ShadowFlare said:
It all depends on the way you charge your batteries.
- If you repeatedly using your phone till it's dead or almost dead, then recharge to full, the longevity will be short.
Click to expand...
Click to collapse
This is what is happening to my s4 mini now. The battery barely lasts a day on my normal usage. Now I'm hardly using it because I'm afraid it will run out of juice before I reach home. I gets to a low 20% and then I charge it overnight. the z3 compact's 2 day battery will solve this for me, hopefully.
- Longevity is also affected by the length of time it is connected to the charger, the shorter the better.
Click to expand...
Click to collapse
well that is a bummer. I was planning on purchasing a dock to set it as my alarm clock.
- If you keep it at 100% all the time, this will reduce longevity ( fully charged = highly stressed battery).
Click to expand...
Click to collapse
I normally keep my phone plugged in over night so that I can be certain that it will be full in the morning when I leave. This is because my current phone's battery drops by 10-17% overnight while I sleep. I compared that to an 5S running on 2G = 1-3% = awesome. (btw; signal is very ok at my house so I don't think it is waking up due to that)
Thank you for your inputs. I guess I'll have to change how I charge my phones from now on.

Have had my xperia z almost since launch and can't really say t hey I noticed any big difference in battery life. Sure some it prob are would be strange but lot so I notice it.
And for the long charge it isn't that big of a problem, have had my Z in the dock over night every day.

As with all these batteries (Li-ion): if you store them leave them at 40-60% then store them away , they dont like to run fully emtpy (although there probably is some hibernation implemented in the system like on laptops) nor fully charged.I think thats the reason why you also never get a fully charged/discharged device .
Batteries have been getting smarter so modern batteries of this type will never charge to 100% even though they display it (thats why leaving them connected it basically does no harm). I am assuming the Z3C also does it this way.
I recommend "calibrating" the battery once or twice every two months that means full charge , then full discharge, then full charge again but beware that if your battery is near death this procedure could be its killing blow due to bad cells .So just do it if you do not experience any problems with the battery, like a sudden drop in battery. Otherwise you can calmly "let it learn" its real capacity.
But again technology has also not slowed down on batteries and as this is a modern device which I think you cant kill with normal usage just extend its life (a bit).

tribemac said:
Have had my xperia z almost since launch and can't really say t hey I noticed any big difference in battery life. Sure some it prob are would be strange but lot so I notice it.
And for the long charge it isn't that big of a problem, have had my Z in the dock over night every day.
Click to expand...
Click to collapse
I also had my XZ since launch, with BT always on I use about 50% during a normal working day.

Have my Z3C for about 3 weeks now, so only time will tell whether the battery lasts. However, this is not my first Sony phone and the Xperia U (about 2 years old, now being used by our son) hardly shows any degradation. Same goes with the Xperia M (1 year old) and still going like new. Adding to that, I never actually paid much attention to when or how I recharged....

Batteries don't usually go bad all at once. Instead, wearing out is more of a gradual process of not charging quite as high and discharging faster. Since this battery is so good to begin with, I would think compared to other devices you could buy right now it will last a long time.
A year from now you'll still get more life out of even an abused z3c battery than you'd get out of that undersized cell in a brand new Moto X.

Poor battery life when using as hotspot

When I set it as a hotspot the battery life drains quite fast. In 6hours the battery life is 20%. Where as my old phone sony xperia z3 compact lasted longer... in 6hours it was only 60%. Why is battery life poor on P10? anyway to improve battery life when using as hotspot? I tried the battery saver option but it still gave same result

Hotspots use alot of battery, thats just how it is.

labums said:
Hotspots use alot of battery, thats just how it is.
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Click to collapse
But how come the sony z3 compact can last longer than p10 especially when the z3 has a smaller battery pack 2600mAh

Note 5 Battery capacity left test ( mAh ) and hours of SOT

I found myself seeking threads in these forums about different ROM's and SOT obtained. The results were way different between different users, some claim to get 2.5h SOT some 5h SOT under normal circumstances.
Under normal circumstances I never get more than 3h and I suspected that my worn battery (598 charge cycles according to "Charge Cycle Battery Stats" app) was far from the original 3000mAh.(Thats a manufacturer stat obtained in perfect conditions, real world must be around 2800mAh)
I needed to measure the capacity left in mAh,so I bought a USB ammeter power meter (Keweisi white digits, but you don't need it, I'll explain later).
Using the Power meter, to measure properly you need to avoid thermal loss and power loss when charging:
- Note 5 completely discharged at 1 or 2% battery left.
- Disconnect the Fast charge option in Android.
- From start to finish keep the note 5 Switched off.
- Use an USB low power charger, mine was charging at 0.8A
Results: 1800mah that's far from the 2800mAh(3000mAh) when new.
(Same test I'm getting 2200mAh out of the original 2800mAh on my old Galasy S5 Neo.)
You don't need USB ammeter, Android has a builtin ammeter calculator(estimation).
Today I depleted the battery (2% left) of my note 5 again (Rom based on Android 7.0) and under battery usage I added all the "Computed Power Usage" in mAh giving the next results:
mAh
557 Cell standby (I worked underground today)
333 Screen 2h53m (30% brightness and auto brightness on)
271 Device Idle
221 chrome
203 Android OS
43 Google Play Serv.
39 Androyd System
27 Youtube
20 Yahoo Mail
20 Wi fi
17 com.android.systemui
Total: 1751mAh
This result shows that the phone itself makes a good estimation of mAh juice available in you battery.
As an anecdote I run the same test that Jerryrigeverything in YT with his Note 5(6 month of use): Playing a 2k video in 100% brightness( auto brightness off) with sound and in Flight Mode(not even wifi). He gets 6h20m, I surprisingly get 6h. But those test are only worth to compare Note 5's
Conclusions(my own and humble): Surprising degradation of my battery, specially compared with the results obtained in my S5 Neo. According to "battery university" (a good scientific source of information about Lithium-Ion) I might have shorten the life of my battery abusing of the fast charge mode.

monkeyisland3G said:
I found myself seeking threads in these forums about different ROM's and SOT obtained. The results were way different between different users, some claim to get 2.5h SOT some 5h SOT under normal circumstances.
Under normal circumstances I never get more than 3h and I suspected that my worn battery (598 charge cycles according to "Charge Cycle Battery Stats" app) was far from the original 3000mAh.(Thats a manufacturer stat obtained in perfect conditions, real world must be around 2800mAh)
I needed to measure the capacity left in mAh,so I bought a USB ammeter power meter (Keweisi white digits, but you don't need it, I'll explain later).
Using the Power meter, to measure properly you need to avoid thermal loss and power loss when charging:
- Note 5 completely discharged at 1 or 2% battery left.
- Disconnect the Fast charge option in Android.
- From start to finish keep the note 5 Switched off.
- Use an USB low power charger, mine was charging at 0.8A
Results: 1800mah that's far from the 2800mAh(3000mAh) when new.
(Same test I'm getting 2200mAh out of the original 2800mAh on my old Galasy S5 Neo.)
You don't need USB ammeter, Android has a builtin ammeter calculator(estimation).
Today I depleted the battery (2% left) of my note 5 again (Rom based on Android 7.0) and under battery usage I added all the "Computed Power Usage" in mAh giving the next results:
mAh
557Cell standby(I worked underground today)
333Screen 2h53m (30% brightness and auto brightness on)
271Device Idle
221chrome
203Android OS
43Google Play Serv.
39Androyd System
27Youtube
20Yahoo Mail
20Wi fi
17com.android.systemui
Total: 1751mAh
This result shows that the phone itself makes a good estimation of mAh juice available in you battery.
As an anecdote I run the same test that Jerryrigeverything in YT with his Note 5(6 month of use): Playing a 2k video in 100% brightness( auto brightness off) with sound and in Flight Mode(not even wifi). He gets 6h20m, I surprisingly get 6h. But those test are only worth to compare Note 5's
Conclusions(my own and humble): Surprising degradation of my battery, specially compared with the results obtained in my S5 Neo. According to "battery university" (a good scientific source of information about Lithium-Ion) I might have shorten the life of my battery abusing of the fast charge mode.
Click to expand...
Click to collapse
Same here, the problem is that is quiet impossible to find a genuine battery for replacement. All those on amazon and ebay are crap.

memeliv said:
Same here, the problem is that is quiet impossible to find a genuine battery for replacement. All those on amazon and ebay are crap.
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Click to collapse
That's the next step, find a good provider and compare capacities.
What I know so far is that there's 2 different battery models:
EB-BN920ABE The most common, but most reviews complain about being 4 or 5 mm shorter, ...less volume less capacity.
EB-BN920ABA Difficult to find, It seems the original replacement according to this picture:
https://ae01.alicdn.com/kf/UTB8YQ_yanzIXKJkSafVq6yWgXXa0.jpg The original is the right side one.
I found a Canadian provider who seems serious (free of fantasy marketing) who also ships worldwide, it looks like the original, (or a extremely good copy) I'm going to take the risk and try it:
https://www.ebay.co.uk/itm/OEM-EB-BN920ABA-3000mAh-Replacement-Battery-for-Samsung-Galaxy-Note-5-N920-N920A/401346669803?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
I'll post results in about 6 weeks....

monkeyisland3G said:
That's the next step, find a good provider and compare capacities.
What I know so far is that there's 2 different battery models:
EB-BN920ABE The most common, but most reviews complain about being 4 or 5 mm shorter, ...less volume less capacity.
EB-BN920ABA Difficult to find, It seems the original replacement according to this picture:
https://ae01.alicdn.com/kf/UTB8YQ_yanzIXKJkSafVq6yWgXXa0.jpg The original is the right side one.
I found a Canadian provider who seems serious (free of fantasy marketing) who also ships worldwide, it looks like the original, (or a extremely good copy) I'm going to take the risk and try it:
https://www.ebay.co.uk/itm/OEM-EB-BN920ABA-3000mAh-Replacement-Battery-for-Samsung-Galaxy-Note-5-N920-N920A/401346669803?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
I'll post results in about 6 weeks....
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Click to collapse
How did it go? Those eBay batteries tend to be pretty bad in my experience.

Finally someone else is concerned about note 5 battery capacity, i replaced mine with an original one in feb 2018 from a nearby samsung service center for $40, i used Accubattery app to measure and compare the battery capacity of the old vs the new battery.
After two years of usage and fast charging enabled in all of charge sessions, the old battery was giving me 76% (2291 mAh) of the original capacity, while the new one is giving me 89% (2675 mAh) right now, the weird thing is that it was giving me 90% right when i purchased it, i dont know if this is normal or not.
As for SOT, the old battery was giving me 2.5 hours on average, with an average of 17 hours of total usage, the new one gives me 3.5 to 4 hours with an average of 20 hours of total usage (disconnect at 100% from charger and drained to 1% or 2%)
Hope you find this post helpful

monkeyisland3G said:
That's the next step, find a good provider and compare capacities.
What I know so far is that there's 2 different battery models:
EB-BN920ABE The most common, but most reviews complain about being 4 or 5 mm shorter, ...less volume less capacity.
EB-BN920ABA Difficult to find, It seems the original replacement according to this picture:
https://ae01.alicdn.com/kf/UTB8YQ_yanzIXKJkSafVq6yWgXXa0.jpg The original is the right side one.
I found a Canadian provider who seems serious (free of fantasy marketing) who also ships worldwide, it looks like the original, (or a extremely good copy) I'm going to take the risk and try it:
https://www.ebay.co.uk/itm/OEM-EB-B...e=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649
I'll post results in about 6 weeks....
Click to expand...
Click to collapse
I'm in the same boat as you. My battery life blows and I am looking for a decent replacement so I don't have to buy a new phone. How did that one work out for you?

Sudden battery life drop, much less SOT with the same usage as before

So, on top of MIUI 11 completely destroying the battery life, I had another drop in longevity of a charge.
Could it be possible that my battery died after less than 6 months of owning the phone?
I'm not going to use AccuBattery as it's wildly inaccurate on every phone I used it on.

Get a battery stats app which can log the runtime & battery consumption accurately then try to post here so people can check it out... Something like battery battery stats etc

markoscouse said:
So, on top of MIUI 11 completely destroying the battery life, I had another drop in longevity of a charge.
Could it be possible that my battery died after less than 6 months of owning the phone?
I'm not going to use AccuBattery as it's wildly inaccurate on every phone I used it on.
Click to expand...
Click to collapse
i use rom custom, battery 8hs screen, miui is bad, change you kernel of system. candy kernel is my favorite.

[OneUI 2.1] How big is the battery life improvement for you?

Although to a certain extent, we even came to doubt that Samsung would update the Galaxy S9 and Note 9 devices with the OneUI 2.1, it is finally here, and it cames with Deep Sleep Apps feature, which will allow to actually suspend all services and processes associated with an app.
This has resulted in a relatively big battery life improvement when the device is on standby with S10 and S20 devices in controlled tests1.
Galaxy S9, S9+ and Note 9 are devices released more than 2 years ago, and surely the battery stamina is not the same as they were in their first months of use. Samsung stats that the batteries used on these devices should keep a decent stamina for 2 years with the average user.
Some people have used their phones with battery care measures1, in order to extend battery life.
So, with the recent release of OneUI 2.1 for Samsung Galaxy Note 9, the battery life with the device in standby is expected to be longer (but not the screen on time), although the magnitude is yet to be determined in the coming days.
This thread is aimed to share our opinions on the subject, as the update becomes available and we can evaluate the battery life.
Footnotes:
1 https://www.xda-developers.com/batteryguru-track-usage-optimize-battery-health-longevity/

IOS uses a choise in his battery settings to charge the battery up to 80 % of it's capacity and then charging will stop to improve the battery's durability.
It's known that standing in battery's 20/80% capacity increases its life and durability and doing this you can charge how many times you want because one parzial charge will not be counted as an whole cycle of charge so the battery might last more than 3 years going on like this.
This choice is not implemented in Android even with one UI 2.1 and it's a shame even if the new feature will improve battery's autonomy due to the lower consumption of the apps and even if it's impossible to perfectly be able to stay in it's 20/80 percentage range, there's an app that I found that will avert you when reaching 80 % of its charging capacity so you can disconnect the cable to preserve the battery....
https://play.google.com/store/apps/details?id=com.digibites.accubattery

joedellosso69 said:
IOS uses a choise in his battery settings to charge the battery up to 80 % of his capacity and then charging will stop to improve the battery's durability.
It's known that standing in battery's 20/80% capacity increases its life and durability and doing this you can charge how many times you want because one parzial charge will not be counted as an whole cycle of charge so the battery might last more than 3 years going on like this.
This choice is not implemented in Android even with one UI 2.1 and it's a shame even if the new feature will improve battery's autonomy due to the lower consumption of the apps and even if it's impossible to perfectly be able to stay in it's 20/80 percentage, there's an app that I found that will avert you when reaching 80 % of its charging capacity to preserve the battery....
https://play.google.com/store/apps/details?id=com.digibites.accubattery
Click to expand...
Click to collapse
You're right and I keep charging between 30 and 80 but this shouldn't be how the phone charges by default as you said. Many people charge from 15 to 100 and want that extra 40-50% they'll get by doing so. I found that without fast charging it takes 1 hour from 30% to 80% so it's no big deal to look at the clock when you leave the phone on the charger.

koragg97 said:
You're right and I keep charging between 30 and 80 but this shouldn't be how the phone charges by default as you said. Many people charge from 15 to 100 and want that extra 40-50% they'll get by doing so. I found that without fast charging it takes 1 hour from 30% to 80% so it's no big deal to look at the clock when you leave the phone on the charger.
Click to expand...
Click to collapse
Even your right, there are even people that continually from 0%(completely dead) goes to 100% after charging the battery for the whole night... that's why what I said for charging should be a choise (like in IOS) and not a default setting.... strange thing that Android or Samsung didn't consider implementing this choise. Fast charging even worns the battery first... it stresses the battery and it will last less but at least they gave us a choise in using it or not.

Absolutely true! Samsung should have implemented a feature to limit charge at 80%, or implement a Bixby Routine to enable this behavior (for example, when charger is plugged at night)

50% increase in my case. And i used OTA Package to update manually.
From: 4h SoT in 24h
To: 8h SoT in 24/30h
Idle times are impressive.
EDIT: just FYI, i rarely charge up to 100%. So my average case is from 85/90% to 5%. Very rarely do i go for a 100 to 0.
One UI 2.1 improvements are all courtesy of the Deep Sleep feature.
I've added everything i barely use or dont need to create wake-ups on the Deep Sleep list. On the normal sleep list, i have low priority things like Play store, etc. And i make sure i white list everything i need untouched (Messenger, WhatsApp, etc) and also do the same thing on the Memory management. Solid results.
Edit: 100% to 1%. 10h SoT with a 30h cycle. It's like getting better and better.

My tab a 2019 has the 80 percent feature and I do not understand why they wont offer the simple setting actually I do because phones they want you to replace the phone instead of the battery in 2 years. I run my note 9 from however low to 100 every night but only because I dont have the option these newer android 9 then 10 now 2.1 adding more and more apps into the firmware but wont add a simple little feature as this. Also I would like to be able to choose if I want to do ota with my data! But I cant.

For me One UI 2.0 was already worst with about 3 to 3.5 hrs of screen on time. Now with 2.1 i barely get close to 2 hrs of SoT. My note 9 is running stock since i bought it at launch and have never done any factory reset. Only thing i do is wipe the cache after a upgrade.
Sent from my SM-N960F using Tapatalk

ankydu said:
For me One UI 2.0 was already worst with about 3 to 3.5 hrs of screen on time. Now with 2.1 i barely get close to 2 hrs of SoT. My note 9 is running stock since i bought it at launch and have never done any factory reset. Only thing i do is wipe the cache after a upgrade.
Click to expand...
Click to collapse
I've Snapdragon variant, running one ui 2.0. Battery life on my note 9 is phenomenal ?

ankydu said:
For me One UI 2.0 was already worst with about 3 to 3.5 hrs of screen on time. Now with 2.1 i barely get close to 2 hrs of SoT. My note 9 is running stock since i bought it at launch and have never done any factory reset. Only thing i do is wipe the cache after a upgrade.
Sent from my SM-N960F using Tapatalk
Click to expand...
Click to collapse
Bro you need to factory reset and start fresh and if that doesn't help something is wrong with your battery I get 9 SOT all the time with 10 2.0 with android 9 it was about 6 SOT, I haven't received 2.1 yet. I have us unlocked version.

sethsmaxx said:
Bro you need to factory reset and start fresh and if that doesn't help something is wrong with your battery I get 9 SOT all the time with 10 2.0 with android 9 it was about 6 SOT, I haven't received 2.1 yet. I have us unlocked version.
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Click to collapse
You have a snapdragon variant which is anyway much better than exynos variant (my phone) for battery backup.
Sent from my SM-N960F using Tapatalk

Stop saying Exynos is not good for battery life. I can easily get 8h SOT of regular usage on my SM-N960F running OneUI 2.1. Obviously I don't play games like Asphalt 9, etc but I never use power saving modes and never limit myself in order to save battery life. I play 8 Ball Pool when I want to, I watch YouTube for as long as I want to, I browse Instagram and use Samsung Internet Beta when I feel like it. Not once have I ended up in a dire need to recharge when I was outside or when I needed to use the phone. Also the phone charges 50% for 1h (I charge between 30 and 80%) so I just leave it charge while having dinner, watching TV or something like that - when I normally wouldn't use the phone anyway.

On my N9 seems battery life abit improve from previous 2.0. Sammy did great job this time.

Here is my screenshot to prove it.

It takes time to see improvement in your device's battery life after installing OneUI2.1. As the software AI needs to learn all your habits again before any improvement in battery life will occur. This process should take a few weeks