Database Users

Are these battery numbers normal nowadays? Need opinion/comparison with other users

Help me out here, I think my G2 which used to be a battery champ is now absolutely awful. I don't really know if it's the phone going wrong or my different usage and the way apps might have evolved.
I think the phone is also heating up way more than it used to do. In fact, I never used to notice the phone getting warm at all and never knew what people with SD810 phones were talking about. If I happen to run a game like Boom Beach or Fallout Shelter for 5 minutes, not only the battery suffers a huge drop, the phone gets almost uncomfortably hot (*). These games can kill the battery in 1:30 hours of SOT which I think isn't probably normal.
The numbers I now have to show are of the phone fully charged last night before going to bed, turning the phone off and then turning it on to clean running ups, etc and left idle while sleeping.
Went to bed with a full battery at around 4:30 AM and it's now 15:46 and battery is down to 64%. Turned the screen at 13:00 to see notifications and browse through news, made a single phone call that must have lasted less than 10 minutes. Pictures, although I think they won't help much except for the SOT:
I bought this phone used and I think it was refurbished. Came from Spain (I'm in Portugal) and happens to be an AT&T version. Screen was always a bit dark and a panel that I believe has been replaced. I think the screen is also going, sometimes it won't respond to touches on the far right edge.
I have it running on the official Lollipop firmware that I manually flashed (no OTA here) but I've tried different ROMs to see if they make any difference (Cloudy 2.2 and 3.3., CM13 and Blisspop Marshmallow). They don't, battery behavior is the same, phone heats up.
I need to know if this is normal for you guys still using the phone (software evolves and maybe things are more demanding on this old phone) or if something is wrong with mine. If it is, I need to think about sending it for repair (probably not worth it) or get a new one.
Not the best of times for me to be spending money on stuff like this but I'm really starting not to trust this phone, carrying the charger with me all the time and have a nasty suspetion screen might die for good one of these days.
Any feedback much appreciated!!
(*) Gets hot mainly on the top back, near the camera lens. Sometimes screen gets also hot but I think it might be due to heat transfer from the back.

I would replace the battery. Li-on batteries typically don't last for more than two to three years. Useful life span depends on how deep the average usage cycle is. I typically try to keep them from going below 40%. An old battery that no longer holds a good charge can cause similar problems. Most rechargeable batteries, including lead-acid automotive batteries in general, suffer from deep cycle charging.
My $0.02
Sent from my LG-H810 using Tapatalk

SofaSpud said:
I would replace the battery. Li-on batteries typically don't last for more than two to three years. Useful life span depends on how deep the average usage cycle is. I typically try to keep them from going below 40%. An old battery that no longer holds a good charge can cause similar problems. Most rechargeable batteries, including lead-acid automotive batteries in general, suffer from deep cycle charging.
My $0.02
Sent from my LG-H810 using Tapatalk
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Click to collapse
Yeh, I know...
I tested it a bit more and at least now I know it is definitely draining way faster than it ever did and I don't see anything that is especially killing the battery (kept off games that I don't even play so much anyway). Oh well, time for a new one I guess. I have been postponing buying one until all these new 2016 main phones came out and they are all pretty much out already.

After running certain apps, or sometimes after connecting to USB in the car, the G2 will go into an overheating condition, with the battery charge rapidly falling. I just reboot it to clear it, and it's back to normal.

SofaSpud said:
After running certain apps, or sometimes after connecting to USB in the car, the G2 will go into an overheating condition, with the battery charge rapidly falling. I just reboot it to clear it, and it's back to normal.
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Click to collapse
Tried that, even made two more factory re-sets. No good, same results... poor thing is going, I'm already convinced of that. It's draining about 1% per minute with screen on, regardless of what I'm doing. About 12% drain with it just sitting on my night table for 6 hours while I was sleeping.
Trying to find a replacement now which is driving me insane.

Kutusov said:
Tried that, even made two more factory re-sets. No good, same results... poor thing is going, I'm already convinced of that. It's draining about 1% per minute with screen on, regardless of what I'm doing. About 12% drain with it just sitting on my night table for 6 hours while I was sleeping.
Trying to find a replacement now which is driving me insane.
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Click to collapse
Well, replacement batteries are a lot cheaper than phones. Why not replace the battery, and squeeze a little more life out of it? Would also serve as a backup phone after you do get a replacement.
Sent from my LG-D801 using Tapatalk

SofaSpud said:
Well, replacement batteries are a lot cheaper than phones. Why not replace the battery, and squeeze a little more life out of it? Would also serve as a backup phone after you do get a replacement.
Sent from my LG-D801 using Tapatalk
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Click to collapse
I'm pretty sure battery isn't the only thing going bad, screen sometimes doesn't respond or respond weird. Mine is already a refurbished unit that I bought because it was the best, cheapest and quicker to get phone after drowning the one I had before. It's not factory refurnished though, some guy in a shed did it. Worked very well until now though but I prefer just to get something that is new instead of paying for the repair of one thing and having another breaking the week after that.
It's going to be either another G2 (found one that seems to be an unused unit but seller hasn't got back to me yet and it would cost pretty much the same or less than a battery/screen replacement) or I'll just get some other recent flagshipy phone that will allow me not to think about phones for at least the next 3 years. Not really sure what that would be but hey..

Phone shut off at 32% and only charged 7% in 1h30m with fast charge

I work 8 hour shifts and my 6P on Pure Nexus lasts through the shift with ~30% when I get home.
I was listening to music through Bluetooth and when I turned off my headset around 5 hours into my shift, my phone shut off and wouldn't turn on. I was in and out of the freezer, so I thought it was the cold. I got home, turned it on and plugged it in and saw it had 32% left.
An 1h30m of charging and it only charged 7% which is really unusual and is the first time.
I have AccuBattery Pro and it is saying it's going to take 10 more hours to fully charge using fast charge. Android lockscreen says "Charging rapidly. 12 hours until full."
Also in AccuBattery, although my design capacity for the battery is 3450 mah, it normally says estimated capacity is 2200, but is now saying I have over 5000 mah in capacity.
When unplugged, it has a screen on discharge rate of 50-70%/h when the average is 23%/h.
Is the battery dying? I thought it would gradually decrease in capacity and not suddenly change overnight.

When my battery bug hit..it just hit. No warning signs or anything. I was crapping out anywhere from 60%-10% and everywhere in between. I bit the bullet and RMAed for a new battery (they gave me a new screen too for whatever reason) Before i sent it in my Accubattery stats were saying i was at 75% capacity and now ive been at 100% capacity since i got it back and i can happily go from 100%-0% like its supposed to.
Although your situation does sound unique its almost certain you'll need a battery replacement.. or try a new ROM and see if it keeps happening.

Wickidmasshole said:
When my battery bug hit..it just hit. No warning signs or anything. I was crapping out anywhere from 60%-10% and everywhere in between. I bit the bullet and RMAed for a new battery (they gave me a new screen too for whatever reason) Before i sent it in my Accubattery stats were saying i was at 75% capacity and now ive been at 100% capacity since i got it back and i can happily go from 100%-0% like its supposed to.
Although your situation does sound unique its almost certain you'll need a battery replacement.. or try a new ROM and see if it keeps happening.
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Click to collapse
Unfortunately, I got my phone from Rogers around November 2015. I don't even know what they can do about it. It's been averaging about 14%/h charging which is about 1/3 the speed. I've been using the same ROM for several weeks with no issues and haven't installed anything new lately other than app updates. I can try upgrading Pure Nexus, but it seems like they have a power menu bug at the moment.

Do you think your charger could be broken?

Wickidmasshole said:
Do you think your charger could be broken?
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Click to collapse
My wife has a 6P also. I was trying her charger and it's the same thing. I've rebooted twice. It's still draining at least about twice the normal average when disconnected.
So it's roughly draining at about twice the normal speed without doing anything and charging at a third the normal speed.
I seriously can't afford to replace it. I regret choosing a phone without replaceable batteries and will not do that again, which means no Pixel phones. At least I still have my Galaxy Note 3 which still works.

if i were you id backup the entire phone (or whatever is importannt to you) to my computer and download the J factory image and do a fresh clean flash and pray that it clears out whatever is going on. Sucks to start fresh, but worth a shot

Wickidmasshole said:
if i were you id backup the entire phone (or whatever is importannt to you) to my computer and download the J factory image and do a fresh clean flash and pray that it clears out whatever is going on. Sucks to start fresh, but worth a shot
Click to expand...
Click to collapse
I use FolderSync to backup my phone nightly to my NAS server.
The slow charging speed may be due to high cpu temperature. It was hovering around 40° for whatever reason. I set it down on a cold granite window sill and the temperature dropped to 35° and was charging at twice the speed, but still slower (1000mah vs 1550mah from before). I've been holding it for a while and the temperature is again going back up with charge speed slowing. Again, I've never had this happen before.
Thanks again, I'll probably restore the phone and bring it to Rogers later this week to see what they say.

Phone shut down for no reason, battery issues.

Guys I am experiencing a very strange problem with my battery. Starting a few months ago the phone began to drain battery a lot, lasting for about 5 hours depending on the use. That problem only got worse with time and now the phone cannot keep on at all. It shut down even with 85% or more battery. If you plug the charger it will boot and the battery will be about the same it was when it shutdown. Yet the phone won’t stand the boot if it is not plugged in the charger.
I have no idea what went wrong here. Ampere show health as good but clearly there is a problem. I even downgraded the OS to 7.1.1 to check the battery life and it stood the same...
Any suggestions? Sorry if my English is not perfect, it is not my first language.

Known battery issue. Get battery replacement.
Sent from my Nexus 6P using Tapatalk

I got same issue on my Nexus 6p. So now I have only one chiise.... Replace the battery

Just go on eBay and get one no originals available. My first replacement was a dud so if your doing yourself test the battery before you put the back on. You can just put your case temporarily over top. The sellers need good ratings so if you have any issues they will immediately send a replacement.

Sudden shutdown 30%

Ok so my phone is the 2017u, running currently the latest LOS16 but this shutdown has happened on 15.1 unnoficials and official.
Is this battery crapping out on me finally as when I was using my accubattery it reported around 72%.
I have a replacement Cameron Sino to fit but since that in itself could be over a year old (new at least) I don't hold out much hope it's not down to 90% just through age.
Cheers

Jcth1 said:
Ok so my phone is the 2017u, running currently the latest LOS16 but this shutdown has happened on 15.1 unnoficials and official.
Is this battery crapping out on me finally as when I was using my accubattery it reported around 72%.
I have a replacement Cameron Sino to fit but since that in itself could be over a year old (new at least) I don't hold out much hope it's not down to 90% just through age.
Cheers
Click to expand...
Click to collapse
72% should be decent, although not great. Calibrate your battery.
Calibration:
Drain to 0%, boot phone drain to 0% again.
Charge to 100% without booting if possible. Otherwise charge while in TWRP.
Unplug
Boot phone, then charge to 100%, unplug, reboot, charge again to 100%, repeat until you have 100% after a reboot while unplugged.
Drain to 0% without charging.
Boot phone and charge to 100% while booted.
Then reset Accubattery, do two cycles from 100% to 0% then charging to 100% while booted, no partial charging. Then run normal usage for a week, see if it reports anything different. If your capacity is around 2000mah, you might want to consider replacing it.

Cheers and have done that cycle before for calibration. Does flashing ROMs throw out the calibration as generally always seem to bugger up my phone every couple weeks flashing something that breaks it or doesn't work.
Will do it when I refit my new battery. I happy to burn this battery out this side of Xmas as wanting it to donor its board for a battery mod I have planned anyways.
Was just wondering if it's likely to be that my battery is fooked that's all. It seems to shutdown to dfu mode and then when plugged in it automatically reboots and shows 30%.

Jcth1 said:
Cheers and have done that cycle before for calibration. Does flashing ROMs throw out the calibration as generally always seem to bugger up my phone every couple weeks flashing something that breaks it or doesn't work.
Will do it when I refit my new battery. I happy to burn this battery out this side of Xmas as wanting it to donor its board for a battery mod I have planned anyways.
Was just wondering if it's likely to be that my battery is fooked that's all. It seems to shutdown to dfu mode and then when plugged in it automatically reboots and shows 30%.
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Click to collapse
If your phone is going into dfu and the battery issue is occurring afterwards. It might not be the battery. It wouldn't hurt to get on a more stable ROM that doesn't dfu, do the calibration again and retest with Accubattery.

I think LOS16 is stable enough. It seems to be at least.
If the battery is below 50 % then it sometimes dfu's if I ask to much of it when the ambient temperature is cold so the actual phone is cold to touch or if I feel heat of the phone around 10 o'clock of fingerprint scanner.
Typical example of cold shutdown is could be speaking to wife on WhatsApp back in Canada and boom it's gone and won't reboot until I plug it in.
Sometimes when Ive tried to use the camera or do moving files and it's warm wherever I am it will shutdown also.

Jcth1 said:
I think LOS16 is stable enough. It seems to be at least.
If the battery is below 50 % then it sometimes dfu's if I ask to much of it when the ambient temperature is cold so the actual phone is cold to touch or if I feel heat of the phone around 10 o'clock of fingerprint scanner.
Typical example of cold shutdown is could be speaking to wife on WhatsApp back in Canada and boom it's gone and won't reboot until I plug it in.
Sometimes when Ive tried to use the camera or do moving files and it's warm wherever I am it will shutdown also.
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Click to collapse
Well you're not the only one who has reported dfus with the latest Los16 builds. So as I said, you may want to make sure it isn't the ROM first. Try testing your battery out on DotOS 2.5, just to be sure, as there haven't been any dfus reported there. I know this would mean clean flashing and starting fresh for a few days, but you can restore your LOS backup as soon as you find that you still have the battery issue with DotOS.
Honestly though, from your latest description, it sounds to be the battery.
Are you using another kernel, like Schwifty?

I've played about with schwifty 4, 5.4, 5.5, 5.8 and 5.10 but reverted back to LOS 16 kernal for now. When the next stable schwifty comes out I might flash that though I'm feeling again this side of Xmas it's not a problem.
My biggest problem is I am moving back to Toronto next year before the spring and I can't be having my phone dfu'in on me if it's too cold hence my asking now to try to work out whether it's the battery or not.
Is there anything I can run after a shutdown to report stuff like a logcat or something ??
Edit
Also it takes an hour to charge my phone to 100% from about 87% which makes me feel the battery is just done now. Remember the same happening on my old nexus 6p and nexus 5 before that.
And if it does get up to 100 it drops charge quite quickly until about 80% then it seems to normalise after into a reasonable rate of loss depending what I'm doing etc.
The phone in TWRP only charged to 94% and had been there for 20 minutes, basically the time it took for my breakfast to come and to be consumed at my local wetherspoons (Brit reference)

Jcth1 said:
I've played about with schwifty 4, 5.4, 5.5, 5.8 and 5.10 but reverted back to LOS 16 kernal for now. When the next stable schwifty comes out I might flash that though I'm feeling again this side of Xmas it's not a problem.
My biggest problem is I am moving back to Toronto next year before the spring and I can't be having my phone dfu'in on me if it's too cold hence my asking now to try to work out whether it's the battery or not.
Is there anything I can run after a shutdown to report stuff like a logcat or something ??
Edit
Also it takes an hour to charge my phone to 100% from about 87% which makes me feel the battery is just done now. Remember the same happening on my old nexus 6p and nexus 5 before that.
And if it does get up to 100 it drops charge quite quickly until about 80% then it seems to normalise after into a reasonable rate of loss depending what I'm doing etc.
The phone in TWRP only charged to 94% and had been there for 20 minutes, basically the time it took for my breakfast to come and to be consumed at my local wetherspoons (Brit reference)
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Click to collapse
Oh wow, yeah, all indicators of a bad battery. I wish i could recommend a good seller, but the one i bought one from gave me a battery with only 80% health. I got 50% refund back, since they didn't want to do an exchange. Still haven't decided if it's worth getting another one. I'm pretty content with 6 hours sot.

EBeatFLA said:
Oh wow, yeah, all indicators of a bad battery. I wish i could recommend a good seller, but the one i bought one from gave me a battery with only 80% health. I got 50% refund back, since they didn't want to do an exchange. Still haven't decided if it's worth getting another one. I'm pretty content with 6 hours sot.
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Click to collapse
Wish I could get 6hours sot. It's ok. I hope my Cameron Sino for the grand x4 or whatever it is will be fine. I am going to hack my back out soon and use my dead battery board to solder in 2 replacement 3000mah or whatever fits batteries.
My Cameron Sino wasn't expensive and brand new so I hope it's in good shape. Either way 2 new lipos from eBay and a small Dremel will do the job haha

Replaced my battery this week with a Cameron sino new from eBay here in the UK. Massive difference to battery life and now the phone is lasting more akin to what I expect from an 820 powered phone.
I'm running
09/18 los16
Schwifty v5 stable
Gms magisk.
Had a nice flat line last night when I was in bed.

Jcth1 said:
Ok so my phone is the 2017u, running currently the latest LOS16 but this shutdown has happened on 15.1 unnoficials and official.
Is this battery crapping out on me finally as when I was using my accubattery it reported around 72%.
I have a replacement Cameron Sino to fit but since that in itself could be over a year old (new at least) I don't hold out much hope it's not down to 90% just through age.
Cheers
Click to expand...
Click to collapse
i have same problems here so now and then,also happens on older roms.
also weird battery drains and accu % on statusbar.
Some people claimed my battery is downgraded etc,but at this point i think its caused due the burn in display stuff (when your phone is hot and decide to change roms)
i think replacing your battery doesnt solve it

Battery replacement after 1.5y

Still love my essential after 1.5 years but been having a few issues lately:
First there is this blue spot that appeared on my screen last month
Second i'm experiencing serious battery issues : battery drains super quickly and often shut down phone around 50%. A few months ago I had excellent battery life (whole day without needing to charge), even on latest Android 10 (stock non rooted). I tried a few things including a factory reset without any success...
Screen issue I can live with but battery no... so I ordered a battery from aliexpress and prepare mentally for the repair with this video . Any further advice?
My essential was refurbished so it may explain the short battery life but I am wondering if alot of ph1 owners still run fine on original battery after 2 years? Mine was also dropped in water 6 months ago but without immediate issues but could be related to recent problems I am facing now
Anyhow, would really like to rock this phone at least 6 more months!

Mine is original bought from Amazon deal 1 1/2 years ago. The battery is still great. Fully charged at 9:30pm, next morning at 6:00am, the battery is 97%.
Phone never got dropped or water damage. I took good care of it, and hoping I can use it until Black Friday this year.

It sounds like @chanh2018 doesn't charge the phone way past when it's full. The PH-1 is one of the (many) devices that do not stop charging and draw from the charger when full.
If your use of the phone is different, the device gets run down then fully charged repetitively, then the wear on your battery will be higher. These comparisons are not really valid because of people's different habits.
My PH-1 battery is in good shape, even though it spends a silly amount of time on a charger. I use a Magisk adjacent (there is a module, also an app but I install by script) project called Advanced Charging Controller (ACC). When the upper charge level is reached, on the PH-1, it stops charging and discharges to the lower set-point. On a normal day, that range is 70%-80%. If I'm using the screen for a long period, like navigation, the same is 40%-41%.
I've done something similar since my N6 and have had little battery trouble.

That makes sense - I'm always plugging my phone before going to bed and let it charge until the morning so that might explain my battery issue.
I thought it was smart enough to stop charging for a while when 100% was reached... I'll pay attention to that when I get my new battery!

liquor said:
That makes sense - I'm always plugging my phone before going to bed and let it charge until the morning so that might explain my battery issue.
I thought it was smart enough to stop charging for a while when 100% was reached... I'll pay attention to that when I get my new battery!
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Click to collapse
Well....I don't charge my phone overnight, but I always let it goes up to 100% and I don't have any issue with it.
It's been 1 1/2 year and still running like first day. Maybe I'm just lucky.

chanh2018 said:
Well....I don't charge my phone overnight, but I always let it goes up to 100% and I don't have any issue with it.
It's been 1 1/2 year and still running like first day. Maybe I'm just lucky.
Click to expand...
Click to collapse
There are many factors that influence battery condition. Factors like heat, both ambient and charging related, the speed of charging(e.g. quick vrs trickle), the depth of discharge/charge. An in depth writing on the subject is available at the battery university.

liquor said:
Still love my essential after 1.5 years but been having a few issues lately:
First there is this blue spot that appeared on my screen last month
Second i'm experiencing serious battery issues : battery drains super quickly and often shut down phone around 50%. A few months ago I had excellent battery life (whole day without needing to charge), even on latest Android 10 (stock non rooted). I tried a few things including a factory reset without any success...
Screen issue I can live with but battery no... so I ordered a battery from aliexpress and prepare mentally for the repair with this video . Any further advice?
My essential was refurbished so it may explain the short battery life but I am wondering if alot of ph1 owners still run fine on original battery after 2 years? Mine was also dropped in water 6 months ago but without immediate issues but could be related to recent problems I am facing now
Anyhow, would really like to rock this phone at least 6 more months!
Click to expand...
Click to collapse
Worked the battery change for you? Since three days I have also heavy battery drain. It needs around 140mAh per hour screen off. My battery health is only 66% said accubattery. I also tried a factory reset...didnt worked. The Phone is like yours 1,5 years old.
I love it too and dont want to change :/

liquor said:
Still love my essential after 1.5 years but been having a few issues lately:
First there is this blue spot that appeared on my screen last month
Second i'm experiencing serious battery issues : battery drains super quickly and often shut down phone around 50%. A few months ago I had excellent battery life (whole day without needing to charge), even on latest Android 10 (stock non rooted). I tried a few things including a factory reset without any success...
Screen issue I can live with but battery no... so I ordered a battery from aliexpress and prepare mentally for the repair with this video . Any further advice?
My essential was refurbished so it may explain the short battery life but I am wondering if alot of ph1 owners still run fine on original battery after 2 years? Mine was also dropped in water 6 months ago but without immediate issues but could be related to recent problems I am facing now
Anyhow, would really like to rock this phone at least 6 more months!
Click to expand...
Click to collapse
Another possibility is that there is some current leakage due to moisture maybe via dendritic growth which could cause current to leak after dendrites have had time to grow.
(As you dropped in water and/or due to reconditioning work leaving residue on PCB dendrites is more likely to occur as rework normally use no clean soldiering products & likely less clean working methods than factory)
---------- Post added at 06:33 AM ---------- Previous post was at 06:24 AM ----------
xTHXxx said:
Worked the battery change for you? Since three days I have also heavy battery drain. It needs around 140mAh per hour screen off. My battery health is only 66% said accubattery. I also tried a factory reset...didnt worked. The Phone is like yours 1,5 years old.
I love it too and dont want to change :/
Click to expand...
Click to collapse
Could be battery failing (not sure how those battery apps calculate rating) though I'd also be looking at a recent app update being incompatible first for such sudden onset (any apps showing higher than normal battery usage) or maybe issue with your wifi/data

My PH-1 is also 1.5 years old and is now having serious battery issues. About two months ago my phone went from "feeling normal" to losing about 3-4 hours of charge per day. On new years day my phone hit 50% and shut off. The phone was not hot at that time. Since that shut-off event my battery only lasts about a quarter of what it would as new.
It would be nice if Essential offered a service to replace the batteries for a fee. I would really like to see replaceable batteries come back in style.
JD

IronRoo said:
Another possibility is that there is some current leakage due to moisture maybe via dendritic growth which could cause current to leak after dendrites have had time to grow.
(As you dropped in water and/or due to reconditioning work leaving residue on PCB dendrites is more likely to occur as rework normally use no clean soldiering products & likely less clean working methods than factory)
---------- Post added at 06:33 AM ---------- Previous post was at 06:24 AM ----------
Could be battery failing (not sure how those battery apps calculate rating) though I'd also be looking at a recent app update being incompatible first for such sudden onset (any apps showing higher than normal battery usage) or maybe issue with your wifi/data
Click to expand...
Click to collapse
It was the wifi Adapter. I would not habe thought but after disable it I got my old, for one day sufficient battery drain back. I have enough mobile data to live without wifi...not the best Solution but its okay.

I just changed out my battery over the weekend. It was actually much easier than the videos on the web lead you to believe. Now i have tons of battery life and it's back to the way it was when i first bought the phone. Very happy!!
JD

JudasD said:
I just changed out my battery over the weekend. It was actually much easier than the videos on the web lead you to believe. Now i have tons of battery life and it's back to the way it was when i first bought the phone. Very happy!!
JD
Click to expand...
Click to collapse
Sweet. Where did you get the battery and which video guide do you recommend? According to AccuBattery my battery's health is 85% but feels like 50!
Sent from my PH-1 using Tapatalk

eKeith said:
Sweet. Where did you get the battery and which video guide do you recommend? According to AccuBattery my battery's health is 85% but feels like 50!
Sent from my PH-1 using Tapatalk
Click to expand...
Click to collapse
For me accubattery said 45% and it really did feel like 45%! LOL
The battery i used was from amazon here: https://www.amazon.com/gp/product/B07T28KL8B/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
I did not do any research on the battery. it was the only one i could find that would get here quickly. So far it is working fine, but time will be the true judge.
main videos to use is:
https://www.youtube.com/watch?v=BCKxAQXdTJ8&t=618s
the main guide to use is:
https://www.ifixit.com/Guide/Essential+Phone+Battery+Replacement/123496
The video is good in that it shows the heat gun to use and how to use it. The only downside to the video is they give the impression that the suction does more than it really does. (this is where the guide below comes in) For me it was a mix of suction cup and very light prying.
The guide is by iFixit and it is very helpful. IMPORTANT: DO NOT THE IFIXIT YOUTUBE VIDEO, IT IS NO GOOD!
The iFixit guide shows you where to make your initial tool insertion (i used a playing card edge) and how deep you actually have to play with around the edges. I also did not use scalpels like they do in the guide. I used only playing cards as it is MUCH safer when going around the edges. The playing cards can cut the adhesive, but will not cut the screen substrate. WARNING: THE PLAYING CARDS CAN STILL LIFT THE SUBSTRATE IF YOU GET TOO AGGRESSIVE, THEY JUST CANNOT CUT IT. BE CAREFUL AS YOU CAN STILL CAUSE DAMAGE.
In summary, the approach is a mix of heatgun and suction cup with playing cards around the edges. Take your time. It took me about 30 mins to get the screen off. After that it is super easy, just be patient.
I'll gladly answer any questions you might have.
Good Luck,
JD

Great! Thanks much for taking the time to share such detailed info.
I think that I will wait a little longer until my battery gets worse but I have bookmarked your references...

I also changed my battery last weekend but used a combination of guitar picks / scalpel / playing cards to decouple the screen after heating the edges with hairdryer.
Result : I damaged my screen so I prime ordered a new one for 80$ CAD. Once connected, I used b7000 glue carefully on the frame edges and put the phone under a big book for 24h.
Phone now feels like new and I hope it for last a while...