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[GUIDE] HTC Sensation Wont power on

did you drained your battery till its fully dead ?
now you need to charge it (boost) at a certain point for it to turn on
you need minimal of 3.6v on your battery to power on the phone.
you can see the voltage in your battery with a multimeter
i had this problem, I drained my battery completely, when I plug it in, the led flashing 11 times last 3 flashes are slow then goes dark.
(my battery had only 2,80v, and i had to boosted to 3.6v)
the original charger has an output 0f 3.6v, i was lucky to have a external batery charger, and it has 4.2v output, so was a little faster to boost my battery,
-methed one by lalitsehgal21
1. Take a spare usb cable.
2. cut it from between.
3. Peel two wires black and red from tip.
4. connect black to (-) point and red to (+) point on batt and secure it via tape.
5. plug it in any power source usb or charger.
6. lve for 20 mins have coffee.
7. remove it and put in fone.
8. Last shot as its almost discharged keep charger plugged in till it rches 50 then flash new recovery.
9. Buy me coke.....coz i dt like beer
-methed one by GiZZy (the led light will not turn on)
1. cut out a strip of plastic that covers only the middle 2 pins between the battery and the phone
2. plug phone in charger
3. place strip between battery and phone on the 2 middle pins
4. put battery in place (2 middle pins isolated)
5. wait to charge for about 10 minutes
6. remove everything, plug battery in and power on
-methed two by ikhzter (i didnt try this one)
1. Take out battery and put it back in
2. Charge for 20 minutes.
3. Take out battery and put it back in again
4. Try powering on now
YOU CAN ALWAYS CHECK THE PROGRESS WITH A MULTIMETER
DON'T FORGET ONLY PUT THE BATTERY ON YOUR PHONE IF YOU HAVE MORE THAN 3.6 V (check with a multimeter)
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vladnosferatu said:
did you drained your battery till its fully dead ?
now you need to charge it (boost) at a certain point for it to turn on
you need minimal of 3.6v on your battery to power on the phone.
you can see the voltage in your battery with a multimeter
i had this problem my baterry had only 2,80v, and i had to boosted to 3.6v
the original charger has an output have 3.6v, i was lucky to have a external batery charger, and it has 4,9v output, so was a little fast to boost my battery,
but this process can take hours.
-methed one by lalitsehgal21
1. Take a spare usb cable.
2. cut it from between.
3. Peel two wires black and red from tip.
4. connect black to (-) point and red to (+) point on batt and secure it via tape.
5. plug it in any power source usb or charger.
6. lve for 20 mins have coffee.
7. remove it and put in fone.
8. Last shot as its almost discharged keep charger plugged in till it rches 50 then flash new recovery.
9. Buy me coke.....coz i dt like beer
-methed two by ikhzter (i didnt try this one)
1. Take out battery and put it back in
2. Charge for 20 minutes.
3. Take out battery and put it back in again
4. Try powering on now
Click to expand...
Click to collapse
I don't really understand in what situation one would need this. When I drain my battery until its fully dead, then yes, it won't turn on while it's plugged in, but if I just charge for 30 seconds to a minute and then unplug the charger, the phone will turn on fine... Then I can continue charging normally after the phone boots up.
Does that not work for you?

gbzbar said:
I don't really understand in what situation one would need this. When I drain my battery until its fully dead, then yes, it won't turn on while it's plugged in, but if I just charge for 30 seconds to a minute and then unplug the charger, the phone will turn on fine... Then I can continue charging normally after the phone boots up.
Does that not work for you?
Click to expand...
Click to collapse
no because i have the CWM recovery, and dont charge the battery when the phone is off

Then you need to update your recovery. Download Rom manager and then install clockwork recovery through Rom manager.

sevag00 said:
Then you need to update your recovery. Download Rom manager and then install clockwork recovery through Rom manager.
Click to expand...
Click to collapse
i have the last....
4.0.1.5

Different method
Hello,
I was in your situation and was able to use the battery from both my nexus and my myTouch to boot in to the bootloader and flash the stock recovery. I had to hold the batteries in place as they are not the right size (just line up the contact points). After flashing the stock recovery I was able to put my sensation battery back in, let it charge for a few minuets and then it would power on. Hope this helps. I have attached the stock recovery from the TMOUS 1.29 rom that I used.
Rsotbiemrptson

vladnosferatu said:
i have the last....
4.0.1.5
Click to expand...
Click to collapse
Rsotbiemrptson said:
Hello,
I was in your situation and was able to use the battery from both my nexus and my myTouch to boot in to the bootloader and flash the stock recovery. I had to hold the batteries in place as they are not the right size (just line up the contact points). After flashing the stock recovery I was able to put my sensation battery back in, let it charge for a few minuets and then it would power on. Hope this helps. I have attached the stock recovery from the TMOUS 1.29 rom that I used.
Rsotbiemrptson
Click to expand...
Click to collapse
It's not about the version number.
If your recovery is blue, then you don't have the latest.
Download Rom Manager from the market and inside of the program, use the Flash Recovery function.
The new recovery will be orange. This recovery is released directly from Koush, who makes the recoveries, instead of from Alpharevx. Also, it will allow you to use the very useful features of Rom Manager, whereas with the blue recovery, you can't do anything with Rom Manager.
It will fix the charging issue, and it a lot more convenient than ripping apart a charger and jump-starting your phone battery, or than flashing the stock recovery just to be able to charge your battery.
Edit:
When you charge your battery from a dead state, the led will blink non-stop. That's good. Let it do that for 30 seconds to a minute, then UNPLUG your charger and turn your phone on. It should turn on.
Then when it boots up, charge normally.

gbzbar said:
It's not about the version number.
If your recovery is blue, then you don't have the latest.
Download Rom Manager from the market and inside of the program, use the Flash Recovery function.
The new recovery will be orange. This recovery is released directly from Koush, who makes the recoveries, instead of from Alpharevx. Also, it will allow you to use the very useful features of Rom Manager, whereas with the blue recovery, you can't do anything with Rom Manager.
It will fix the charging issue, and it a lot more convenient than ripping apart a charger and jump-starting your phone battery, or than flashing the stock recovery just to be able to charge your battery.
Click to expand...
Click to collapse
4.0.1.5 is the orange version, i updated from ROM MANAGER
and i had this problem with the cwm orage version, the last version

vladnosferatu said:
4.0.1.5 is the orange version, i updated from ROM MANAGER
and i had this problem with the cwm orage version, the last version
Click to expand...
Click to collapse
See my edit to my post above. Does that fix your issue?

gbzbar said:
See my edit to my post above. Does that fix your issue?
Click to expand...
Click to collapse
the led flashing 11 times last 3 flashes are slow then goes dark.

vladnosferatu said:
the led flashing 11 times last 3 flashes are slow then goes dark.
Click to expand...
Click to collapse
But have you tried letting it flash for a bit, unplugging the phone, and then try turning it on?

gbzbar said:
Edit:
When you charge your battery from a dead state, the led will blink non-stop. That's good. Let it do that for 30 seconds to a minute, then UNPLUG your charger and turn your phone on. It should turn on.
Then when it boots up, charge normally.
Click to expand...
Click to collapse
i did that, and didnt work

I was worried about this for a while, too. What worked for me was to use a friend's phone (also a Sensation) to charge my battery, update the new ClockworkMod Recovery, then put my battery back in to my phone. Took about 10 seconds to power on, but by golly it works now.
EDIT: No, apparently it was the spare battery that worked fine. My original battery won't charge in either phone. Really don't have any spare cables to be hacking up. I guess I have no option other than to have another battery sent out.

I have the same problem, it is now completely dead.
I do have the latest ROM Manager through Market and flashed the latest CWM, yes the text is orange.
What to do :[

argh9 said:
I have the same problem, it is now completely dead.
I do have the latest ROM Manager through Market and flashed the latest CWM, yes the text is orange.
What to do :[
Click to expand...
Click to collapse
do what is in first post !!!!

So is the charging issue fixed or not. I thought the new recovery fixed that issue. It's the only thing keeping me from s-off and rooting my phone. I run the battery totally dead a few times a week.
Sent from my HTC Sensation 4G using XDA Premium App

jomaxwel said:
So is the charging issue fixed or not. I thought the new recovery fixed that issue. It's the only thing keeping me from s-off and rooting my phone. I run the battery totally dead a few times a week.
Sent from my HTC Sensation 4G using XDA Premium App
Click to expand...
Click to collapse
nope, not yet

Man this sucks. I'm having the hardest time getting this to work.

WOAH.... I would advise against this completely. You run the risk of destroying the battery this way.
If you really need to do it this way, using 3 AA batteries would be better. (for a voltage of 4.5).
Using 9 volts is grossly overvolting the battery, which is extremely bad for Li-ion / Li-Po batteries.
Also remember, you only need to charge it enough so that the phone can turn on and boot.
vladnosferatu said:
-you can use a 9v battery to charge your phone battery
1. connect with a wire the + from 9v battery to the + from you phone battery
2. connect with a wire the - from 9v battery to the - from you phone battery
Click to expand...
Click to collapse

solarnz said:
WOAH.... I would advise against this completely. You run the risk of destroying the battery this way.
If you really need to do it this way, using 3 AA batteries would be better. (for a voltage of 4.5).
Using 9 volts is grossly overvolting the battery, which is extremely bad for Li-ion / Li-Po batteries.
Also remember, you only need to charge it enough so that the phone can turn on and boot.
Click to expand...
Click to collapse
thanks, removed

Battery only charges to 96%

Exactly what the title says. The phone says it has charged completely but the battery is only at 96%. I'm currently draining the battery and I'm going to recharge it, but is this normal? I've had this phone for six months.

souvik1997 said:
Exactly what the title says. The phone says it has charged completely but the battery is only at 96%. I'm currently draining the battery and I'm going to recharge it, but is this normal? I've had this phone for six months.
Click to expand...
Click to collapse
What rom are you on? Wipe your battery stats and cycle it a couple of times and eventually it'll hit 100 or 99 once you unplug

This happens to me as well. if you leave it long enough it will go to 100. it is a calibration error and will not actually hurt battery life, just how it is reported.

souvik1997 said:
Exactly what the title says. The phone says it has charged completely but the battery is only at 96%. I'm currently draining the battery and I'm going to recharge it, but is this normal? I've had this phone for six months.
Click to expand...
Click to collapse
As Jce9182 asked, which rom are you running, and if you're not running any custom rom, are you at least rooted? The issue here sounds like it is most definitely a battery reporting error. This can be fixed by using an app from the market like Battery Calibration. You can also try the following with use of the market app for calibrating the battery. It's best to complete this procedure in the evening before going to bed, so you can leave it at 100% overnight and check in the morning if the issue has been resolved. The whole procedure along with recalibration might take up to 5-6 hours or more!
1. Take the case off your phone (if you're using one, as one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)
2. Install Battery Calibration app from the market: Find it here!
3. Plug in your phone to charge while it's on, and wait until it gets to a 100% (or 96% as it appears in your situation)
4. When the charged, open the Battery Calibration app and look up what the charge is in mV while at fully charged. Write it down.
5. Discharge your phone completely until it shuts off. A good way of doing this quickly is by turning on WiFi, and a video player.
6. Without turning on the phone plug it into a wall charger and let it get to 100% (or 96% if this is all you will be able to see before finishing these steps)
7. When it's charged, without unplugging it from the wall charger, take off the battery cover, and take the battery out. Your phone will "reboot" and show a Missing Battery icon.
8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.
9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%. Mine showed only 5%.
10. Let it sit there charging for 2-3 hours. My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.
11. After 2-3 hours, turn the phone on while holding the volume down button and get into CWM. Do not disconnect it from the charger still!
12. Wipe battery stats in CWM, reboot. Do not disconnect it from the charger still!
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers- if you were like me, they should be significantly higher than before. Do not disconnect it from the charger still!
14. Before going to sleep - Install Watchdog Task Manager from the market. Go into it's preferences, set CPU threshold to 20%, check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20% as well. Do not disconnect it from the charger still!
15. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger. Go to bed, let your phone sleep too.
16. Success! Next morning check where your battery % is at and if you followed the instructions correctly / got lucky like me, your battery life should be 90% or more. I went to bed with 98% and woke up to 94%. So, I consider this mission a success.
(Your general battery capacity should have increased, even if something still was draining the battery, you will be able to find the infringing process in WatchDog with the settings we've set up in step 14)
Hope this helps... :good:

Apex_Strider said:
2. Install Battery Calibration app from the market: Find it here!
4. When the charged, open the Battery Calibration app and look up what the charge is in mV while at fully charged. Write it down.
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers- if you were like me, they should be significantly higher than before. Do not disconnect it from the charger still!
Click to expand...
Click to collapse
Should i click "calibration" on battery calibration app?
And what is the MV number that you got after all?
Thanks

kojitabe said:
Should i click "calibration" on battery calibration app?
And what is the MV number that you got after all?
Thanks
Click to expand...
Click to collapse
Click "calibrate" after the phone has been on the charger (wall, not USB to PC charge!) For several hours -preferrably after charging all night- and calibrate using the app in the morning.
The Mv I get at full charge is in the neighborhood of 4351-4353Mv or so:
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Doesn't charge if rebooted while plugged in

Phone is Samsung Galaxy Relay, CM11-20141008
If the phone reboots while plugged in, it stops charging, even though it thinks it's charging:
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If charger is removed and reattached, it starts charging again.
It also sometimes thinks it has charged but then dies randomly as though the battery has died, and then the battery level is shown to be much lower than it thought? 3 things on right side of plot:

Now the phone won't stay running at all. It does the bootloader screen, then goes black in the middle. Sometimes it makes it to a home screen and then dies as soon as I touch anything.
If it's a bad battery, shouldn't it still work while plugged into external power?
Should it boot with no battery at all while plugged into external power? All it does is show a red LED and vibrate repeatedly.
If I boot into recovery it stays on, though, on battery alone.
Tried removing SD card and SIM card, wiping cache partition, wiping dalvik cache, reflashing gapps, still doesn't work.

re-burned the CM11 ROM, did a factory reset, still nothing. it works fine in recovery, but when I try to boot it shows the splash screen (the static picture, not the rotating circle), the LED turns blue briefly, and then everything goes black. :crying:

Sounds like a bad battery. Try letting the phone charge while off for about 6 hours. Also you could try "clearing the RAM" by pulling the battery unplugging and holding the power button for 5-10 seconds, and see if that helps.

But it boots into recovery and that works fine?
Sent from my HTC Vision using XDA Free mobile app

Also wouldn't it run fine on external power?
Sent from my HTC Vision using XDA Free mobile app

I tried both of those with no luck.
It probably is a bad battery? After charging all day, it showed a full battery. I started it, it died immediately, then it said the battery was empty. Anyway I need a phone and don't have time to decide on a new model so I ordered another one. if it's just the battery I'll have a backup phone now.

So I swapped out the battery and it booted. It ran a while, getting really hot processing updates and everything from the past week, and then randomly shut down. The battery graph shows the same thing as before, the Charging bar is green as though it is charging, but the battery level graph is dropping. So I think the charging itself is broken and not the battery?

So after changing the battery it acted weird again for a bit and then started charging and has been working as it was since? So it was just the battery? But I still wake up to a dead phone even though it's plugged in, which it was doing with the old battery too.

Did you try a different charger.

Yes, tried several chargers
I made a Tasker profile to make noise if it's plugged in but the battery level keeps dropping

This definitely still sounds as though it's a bad battery.

Magamo said:
This definitely still sounds as though it's a bad battery.
Click to expand...
Click to collapse
well this is a different battery now, so 2 bad batteries? can someone with this phone confirm that if they plug it in and then reboot, it stops charging?

endolith said:
well this is a different battery now, so 2 bad batteries? can someone with this phone confirm that if they plug it in and then reboot, it stops charging?
Click to expand...
Click to collapse
I personally have not seen that issue. The only issue with booting while plugged in that I've seen with the three apexqs I own is that if you reboot the phone with the charger plugged in, it often then doesn't like to get into 'Deep Sleep' mode until it's rebooted while not plugged in.

I have two apexq and never that issue, the only issue is the same magamo said before, no issues with charging rebooting phone while plugged in
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OPO suddenly not charging, battery stuck at 50%, low battery screen

My Oneplus One has recently started acting up. Last week it stopped charging normally and will only charge using the OEM charger.
Chargers and cords that I previously used without issue no longer work at all. My phone will show that it is connected to power, but will not charge and the battery will still go down.
I have tried:
Samsung wall charger
My 2.1a output car charger - battery doesn't go down, but no longer charges
My 1.5a output external battery
Apple USB charger and it seemed to work
Yesterday, I plugged my phone into my Samsung wall charger that like I said previously charged my OPO without issue and entered recovery and it wouldn't even charge in recovery.
I'm not sure what to try. Has anyone experienced anything like this? I'd rather not have to buy a new phone.
Sent from my A0001 using Tapatalk

soloz2 said:
My Oneplus One has recently started acting up. Last week it stopped charging normally and will only charge using the OEM charger.
Chargers and cords that I previously used without issue no longer work at all. My phone will show that it is connected to power, but will not charge and the battery will still go down.
I have tried:
Samsung wall charger
My 2.1a output car charger - battery doesn't go down, but no longer charges
My 1.5a output external battery
Apple USB charger and it seemed to work
Yesterday, I plugged my phone into my Samsung wall charger that like I said previously charged my OPO without issue and entered recovery and it wouldn't even charge in recovery.
I'm not sure what to try. Has anyone experienced anything like this? I'd rather not have to buy a new phone.
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
Classic symptoms of battery failure. It happens with Laptop batteries also. Get your OPO battery changed as soon as possible.
Sent from my A0001 using Tapatalk

Thanks! I'll look into getting a new battery. Are there any sellers I should look at or anywhere to seer clear from?
I need to sort out the most recent update as well which will hopefully fix my phone not always ringing when I get a call through. Last time I updated it I keep getting notifications to update it to the same version I'm already running and random restarts/freezing/slowing
I'm not sure if the power/battery has anything to do with this or if I have two unrelated issues.
Sent from my A0001 using Tapatalk

My new battery came on Saturday and I installed it and charged my phone up before leaving for the weekend. It seemed to work OK Saturday and Sunday aside from a couple random restarts battery performance seemed to be better.
Then last night I went to bed without plugging my phone in since it was about 50% and when I woke up at 4 it was completely dead and would not turn on. I plugged it into the original charger and it showed the battery low, charge before powering on screen. I left it plugged in and charging for the last two and a half hours or so and just got up. The phone shows 50% charge so I turned it on and it briefly gave me the low battery message before powering up. I checked the battery and it looks like the battery suddenly lost all charge? The phone was still connected to the charger and showing 50%, but not charging. It appears to have stopped at 50%. The phone then randomly shut down and will not turn back on again. I keep getting the low battery screen.

I just switched back to the original battery so I could at least power on my phone and post the screenshot I took with the old new battery not charing past 50% before it shut down and refused to boot up.
Also, now that I'm using the original battery my phone feels slightly slower again. Could be nothing.
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Question Slow charging issue, won't charge above 900mah

Oneplus 9 t-mobile version LE2117. The phone will not seem to charge above 900mah and usually will only charge at around 700mah. I've tried multiple chargers and tested my 6t on the same chargers and it is charging at 3000+ on the same charger.
I think this started after transferring all the data from the 6t over to the 9 using Google one. I tried doing a cache wipe in recovery but that didn't help.
I'm rooted and unlocked. Battery charging optimization is off. Any ideas?

Degraded or failed battery; replace it.

blackhawk said:
Degraded or failed battery; replace it.
Click to expand...
Click to collapse
It either started right after I updated to 11.2.9.9 or after I did the restore. I think it's software related. I might do a factory reset if I don't find another solution.

HutchOven said:
It either started right after I updated to 11.2.9.9 or after I did the restore. I think it's software related. I might do a factory reset if I don't find another solution.
Click to expand...
Click to collapse
Batteries can fail overnight... just like that.
If it was at 80% of its original capacity it's degraded and should be replaced.
Any swelling (take a close look) is a failure.
If there's any doubt, replace it as batteries are cheap and it's not worth destroying a phone over.
Power off phone. If it's still exhibiting abnormal charging behavior it's likely hardware. It's possible it could be firmware if the power controller's instruction set was changed.
Otherwise the battery and possibly the power port pcb are the most likely suspects.
Make sure the battery charging start temperature is at least 72°F. A low start temperature will disable fast charging.

blackhawk said:
Batteries can fail overnight... just like that.
If it was at 80% of its original capacity it's degraded and should be replaced.
Any swelling (take a close look) is a failure.
If there's any doubt, replace it as batteries are cheap and it's not worth destroying a phone over.
Power off phone. If it's still exhibiting abnormal charging behavior it's likely hardware. It's possible it could be firmware if the power controller's instruction set was changed.
Otherwise the battery and possibly the power port pcb are the most likely suspects.
Make sure the battery charging start temperature is at least 72°F. A low start temperature will disable fast charging.
Click to expand...
Click to collapse
I did install acc but I've since removed it. Going to try a factory reset and if that doesn't solve it, you are likely correct. I just didn't want to wipe the phone and deal with getting root and all my apps back on it.
Also it has no swelling, start temp is around 90* and the health says good on ampere and the battery doesn't seem to drain fast. It just won't charge fast.

HutchOven said:
I did install acc but I've since removed it. Going to try a factory reset and if that doesn't solve it, you are likely correct. I just didn't want to wipe the phone and deal with getting root and all my apps back on it.
Also it has no swelling, start temp is around 90* and the health says good on ampere and the battery doesn't seem to drain fast. It just won't charge fast.
Click to expand...
Click to collapse
The only reliable parameter is SOT* which of course can vary if you change the set up.
Erratic fast charging or its failing to engage is another sign of a battery failure. Not to repeat but it's worth remembering...
As a battery degrades it's fast/regular charging time will decrease.
New maybe it took 30 seconds to add 1%
Degraded may be 20 seconds for 1%
Less capacity, less charging time.
Regardless if the device is heavily used expect a battery life of 1-2 years. Replacing these I now view as routine maintenance. My N10+'s will get new batteries about every year now. My first one failed shortly before the 1.5 year mark. I was fortunate it didn't damage the display.
*I track this with Accubattery. The history log is it's most useful feature, great for troubleshooting.
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blackhawk said:
The only reliable parameter is SOT* which of course can vary if you change the set up.
Erratic fast charging or its failing to engage is another sign of a battery failure. Not to repeat but it's worth remembering...
As a battery degrades it's fast/regular charging time will decrease.
New maybe it took 30 seconds to add 1%
Degraded may be 20 seconds for 1%
Less capacity, less charging time.
Regardless if the device is heavily used expect a battery life of 1-2 years. Replacing these I now view as routine maintenance. My N10+'s will get new batteries about every year now. My first one failed shortly before the 1.5 year mark. I was fortunate it didn't damage the display.
*I track this with Accubattery. The history log is it's most useful feature, great for troubleshooting.
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I did a factory reset and battery is still only showing 500-800mah charging. What's weird is the display on the lock screen states its charging rapidly though.
But unfortunately it looks as if you are correct and it was a coincidence that the battery failed some time while updating the phone.

HutchOven said:
I did a factory reset and battery is still only showing 500-800mah charging. What's weird is the display on the lock screen states its charging rapidly though.
But unfortunately it looks as if you are correct and it was a coincidence that the battery failed some time while updating the phone.
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You can't measure the charge rate with the screen on. The power controller automatically ramps the charge rate down the moment the screen comes on. If you have Accubattery already open and turn the screen on it will display the screen off charge rate for a second until it refreshes.
If it says it's fast charging, it likely is. Verify by rate charged in 10 minutes between 30-70%.
It should be approximately 18-22% for a 4300 mAh battery on a 25w brick (Samsung), but you get the idea.
Regardless it's sound stewardship to replace degraded Li's before they fail, plus it breathes new life into the device.