What's wrong with my battery? - Galaxy S I9000 Q&A, Help & Troubleshooting

Can somebody please tell me what is wrong with my battery? During usage it drops very fast but then when the phone is idle, it goes back up without charging!
And also when sometimes I restart my phone it drops by around 50-80% as seen in the screenshots!
P.S. I should mention that my phone is not rooted and running on stock 2.3.3

i had the same problem i upgraded to slim ics 3.5 now problem is gone and use battery calibration too . BTW which modem do you use i m from india too and my battery life is not good

I'm on ddjv9 stock modem and rom! Actually I have 1650 mah battery. It used to give a gud battery backup but lately strange things have started happening!
How long does ur phone last?

don't know yar i get around 5-6 hour video playback on full charge and facebook and browser last for only 2 hour and music around 7-8 hour N on a normal usage i get around a day :| don't know its normal or not n screen brightness on auto and i use only 2g

I used to get around 8-9 hours of video playback and about 2 days on normal usage! But the brightness used to be around 10%!! 2 hours of browsing is less, even on auto brightness!

janish_aggarwal said:
I used to get around 8-9 hours of video playback and about 2 days on normal usage! But the brightness used to be around 10%!! 2 hours of browsing is less, even on auto brightness!
Click to expand...
Click to collapse
Have you tried "bump charging"?
1) Power up (if not already) and plug your device into a power source.
2) Wait until your phone indicates it is fully charged.
3) Unplug, press and hold the power button, and select the option to power off.
4) Once powered down reconnect power source.
5) The display will show a battery charging, wait til it says 100%
6) Once it's fully charged(100%), unplug the device and quickly reconect again
Repeat steps 5-6 process (approximately 3-4 times)
this is called "bump charging" and its the same principle for all android phones

nikhoter said:
Have you tried "bump charging"?
1) Power up (if not already) and plug your device into a power source.
2) Wait until your phone indicates it is fully charged.
3) Unplug, press and hold the power button, and select the option to power off.
4) Once powered down reconnect power source.
5) The display will show a battery charging, wait til it says 100%
6) Once it's fully charged(100%), unplug the device and quickly reconect again
Repeat steps 5-6 process (approximately 3-4 times)
this is called "bump charging" and its the same principle for all android phones
Click to expand...
Click to collapse
Yes I've tried bump charging also. It works fine for that cycle but the next time I charge it normally, it goes back to being wierd!
The problem is also that when I turn on my phone after full charge, it shows less than 15% battery and then rises slowly itself- as seen in some screenshots!!

Related

Help! Battery won't charge past 70%

I didn't notice this problem until the day before. My battery status is displaying 70% when the phone consider it to be fully charged.
I've drain it to 5% before charging overnight, but the status still display 70%.
I am not sure if this is a problem with my phone or the battery. Any help would be nice.
Try this but you need a rooted phone for it: http://forum.xda-developers.com/showthread.php?t=722862
it is just a status bar bug
the battery is probably fine
use Gauge Battery Widget instead to see the real stuff
http://forum.xda-developers.com/showpost.php?p=8124361&postcount=46
Thank you for the link!! I am trying that now.
This is not the status bar problem as I've test out some of the widget.
The phone would only charge up to 70% no matter how long it will remain on the charge.
Going into the battery info in setting also indicated it is at 70%.
At this moment I am draining my phone with max brightness and everything turn on.
Start off at 70% at 9:30am and now (2:00pm) is at 3%
So I guess I should try to charge it full with the phone off
Did you recently flash firmware to your phone? Make sure your battery is fully charged whenever you flash firmware because it will clear the battery data. It seems to me all you need is a battery calibration. There is a procedure posted somewhere. IIRC, you need charg up the battery to 100%, power down, charge 100%, power up again and repeat a few times.
I had the same problem.
After a day of charging the battery fully charged notification appears. As soon as I unplug it the battery immediatly jumps to 70%.
Is there a way to fix this? Perhaps reflashing when the phone is fully charged (which is currently 70%).
I tried the rm /system/data/batterystats.bin but did not remedy this problem.
Same problem here. It has been this way for a month. Tried calibration, different batteries, different ROMS....everything.
who can help?
using alternative battery widget is not an option if battery stats from settings also displays 70% max
this is very unusual problem - i would suggest:
1) install https://market.android.com/details?id=com.nema.batterycalibration (phone needs root)
2) drain battery to 0%
3) take out battery for 5-7 minutes
4) put it back and turn on and drain again
5) repeat untill phone will not turn on
6) while still off charge phone to 100%
7) disconnect charger power on the phone, let it boot and use the battery calibration app
8) now let the phone discharge with normal usage untill it powers off (do not reboot, power off during discharge)
9) put the phone to charger, turn it on and let it charge to 100% wo reboots/poweroffs
should be fine
let me try tomorrow..I have similar issue..
Sent from my GT-I9000 using XDA App
Today, over night charge from 70% to 79%
have you followed my tutorial from this post -> LINK
also can you dial *#*#4636#*#* pick battery information and make a screenshot, then another after a minute or two ...
I made this thread over in the captivate forums, it explains the issues in detail
http://forum.xda-developers.com/showthread.php?t=1279925
What rom/kernal are you guys using?...
Sent from my MB860 using xda premium
concentrate on points 2 to 5 of my 'tutorial' and for god sake use only original charger
and yes, what kernel
Hey Somator, I am trying your tutorial now. I drained my battery to 0% on my phone. I then would boot it up, it would register 1%, then turn off.
I then put my battery in a coworkers phone today and it read 40% when it previously read 0% on mine. So I depleted the battery on his phone, reinserted it into mine, and I am now currently charging it to 100% while it is off. I will let you know how the rest turns out.
I have tried calibration procedures on stock rom, MIUI, CM7, I9000, and I897 Roms.
drain the battery on his if you can and then charge on yours
after that wipe battery stats with https://market.android.com/details?id=com.nema.batterycalibration
//edit: oh you did exact that - well should be fine from now - still wierd why it just 'decalibrated' by so much in the first place
the original charge has helped me, everything is fine
In case someone is looking for an answer here (considering this is the thread that comes at the top of Google's search results), this is what worked for me:
1. Take the battery out.
2. Plug phone into wall charger.
3. Put the battery back in the phone.
4. Let it charge for an hour. Mine said 5% the entire time it was plugged.
5. Remove phone from charge. Remove battery. Put them all together again.
I hope this works for others.
Verizon note 4
$omator said:
using alternative battery widget is not an option if battery stats from settings also displays 70% max
this is very unusual problem - i would suggest:
1) install https://market.android.com/details?id=com.nema.batterycalibration (phone needs root)
2) drain battery to 0%
3) take out battery for 5-7 minutes
4) put it back and turn on and drain again
5) repeat untill phone will not turn on
6) while still off charge phone to 100%
7) disconnect charger power on the phone, let it boot and use the battery calibration app
8) now let the phone discharge with normal usage untill it powers off (do not reboot, power off during discharge)
9) put the phone to charger, turn it on and let it charge to 100% wo reboots/poweroffs
should be fine
Click to expand...
Click to collapse
I have Verizon note 4 that can not be rooted, any other options?

[Q] Tegrak 100% battery charge?

Hey all,
Noob question. I recently went to JVP (doc kitchen) and tried out multiple kernels (speedmod, fugu, tegrak). I only noticed this issue after going to tegrak's kernel so suspect it's kernel related.
The issue I'm having/suspect is that after "100% charge" the battery would start to be consumed (even if it is plugged in). This is most noticeable if I'm at my desk at work all day (phone on charge) or when I leave my phone charging overnight. When I disconnect to go home/go to work, I can see the battery is at 85% or similar (as if the phone wasn't on charge). If I was to disconnect it as soon as it hit "100%" it'll be at 96/97/98% as expected.
I'm not an expert and logcat confuses the heck out of me to be honest, but would anyone know what strings I can search for to determine if the phone "stops charging" when it hits 100%? I'd prefer it to be on a trickle charge (ie keep the battery at 96/97/98%) so that when I disconnect, I have a near full battery.
Is this a kernel issue? or a battery level calibration issue?
TIA
cheddarchi said:
Hey all,
Noob question. I recently went to JVP (doc kitchen) and tried out multiple kernels (speedmod, fugu, tegrak). I only noticed this issue after going to tegrak's kernel so suspect it's kernel related.
The issue I'm having/suspect is that after "100% charge" the battery would start to be consumed (even if it is plugged in). This is most noticeable if I'm at my desk at work all day (phone on charge) or when I leave my phone charging overnight. When I disconnect to go home/go to work, I can see the battery is at 85% or similar (as if the phone wasn't on charge). If I was to disconnect it as soon as it hit "100%" it'll be at 96/97/98% as expected.
I'm not an expert and logcat confuses the heck out of me to be honest, but would anyone know what strings I can search for to determine if the phone "stops charging" when it hits 100%? I'd prefer it to be on a trickle charge (ie keep the battery at 96/97/98%) so that when I disconnect, I have a near full battery.
Is this a kernel issue? or a battery level calibration issue?
TIA
Click to expand...
Click to collapse
Please do this procedure and see... once u finish ur 2 or 3 cycle u'll get the result...
- Charge your battery full, bump charge to get the highest level possible ; note that it's not a big deal if it shows 97% when you unplug after bump-charging
- Drain your battery to 0% until it shuts down by itself (without plugging the charger or connecting the phone to a pc)
- Wait 2 minutes and reboot the phone to ensure the battery is completely flat (it might reboot fully, half way, not at all, don't worry) until it dies again
- Remove the battery and wait 2 minutes
- Replace the battery and plug the charger without switching the phone on until it shows 100%
- When phone shows 100%, boot in recovery (volume up + home + power) and go to > Advanced > Wipe Battery Stats > Confirm (move up/down using the volume keys)
- Reboot the phone and unplug the charger when the "battery full notification" comes (wait for the notification before you unplug the charger)
- Now use your phone until the battery is flat again and charge full (no need to have it turned off, unless you it to charge faster). Repeat 2 or 3 times and your battery will be calibrated
- Only wipe battery stats once, run a few cycles of full charge / discharge and after that just use your phone as normal (i.e. no need to deplete / charge fully anymore).

[Q] Issues with battery life

I've been having some issues with my battery life on CM12. The battery drains about 35% in about 20 minutes during light use, mainly just browsing reddit using reddit sync. It does fine during standby, using about 10% in around 6 to 7 hours. It also seems to heat up while idling. Right now it's on my desk, charging, at 40 degrees. I've ran a factory reset and it hasn't helped.
yayes2 said:
I've been having some issues with my battery life on CM12. The battery drains about 35% in about 20 minutes during light use, mainly just browsing reddit using reddit sync. It does fine during standby, using about 10% in around 6 to 7 hours. It also seems to heat up while idling. Right now it's on my desk, charging, at 40 degrees. I've ran a factory reset and it hasn't helped.
Click to expand...
Click to collapse
35 is 20 min is huge but it could be because some apps are draining battery. Use gsam battery monitor to see what is draining the battery so fast. Your battery might also need replacement.
yayes2 said:
I've been having some issues with my battery life on CM12. The battery drains about 35% in about 20 minutes during light use, mainly just browsing reddit using reddit sync. It does fine during standby, using about 10% in around 6 to 7 hours. It also seems to heat up while idling. Right now it's on my desk, charging, at 40 degrees. I've ran a factory reset and it hasn't helped.
Click to expand...
Click to collapse
Have you tried a hardware battery recalibration?
The battery calibration starts with the phone completely off. The steps are as follows: Charge the device for at least 10 minutes using the original charging cable in a wall outlet. With the device powered off while still plugged into the wall outlet, press and hold the volume up, volume down and power button for two full minutes. Use three fingers to hold these buttons and do not let go at any time. They will be held in at the same time for this to work. The phone will switch on and off every 15 seconds, After two minutes, you can let go, whilst the screen is on, At this point, the device should boot up and battery/charging logic will be re-calibrated.
alray said:
35 is 20 min is huge but it could be because some apps are draining battery. Use gsam battery monitor to see what is draining the battery so fast. Your battery might also need replacement.
Click to expand...
Click to collapse
Just installed this. Going to report back with what it says tomorrow. Also will post a battery graph if the recalibration doesn't help.
Seanie280672 said:
Have you tried a hardware battery recalibration?
The battery calibration starts with the phone completely off. The steps are as follows: Charge the device for at least 10 minutes using the original charging cable in a wall outlet. With the device powered off while still plugged into the wall outlet, press and hold the volume up, volume down and power button for two full minutes. Use three fingers to hold these buttons and do not let go at any time. They will be held in at the same time for this to work. The phone will switch on and off every 15 seconds, After two minutes, you can let go, whilst the screen is on, At this point, the device should boot up and battery/charging logic will be re-calibrated.
Click to expand...
Click to collapse
Just did this as well. Going to see how it goes tomorrow.

[Q] OTA update to Lollipop: Terrible battery life, very slow charging

I just got the OTA update from KitKat to Lollipop (5.0.2) yesterday and I've noticed terrible battery life and very slow charging since then. My phone is always in its charger overnight and when I remove it from the charger in the morning it usually easily lasts until I put it in the charger at night again. During the daytime I do a lot of stuff on it (whatching youtube videos, listen to internet radio, whatsapp, internet browsing, making phonecalls etc).
This morning I removed it from the charger and hardly didn't do anything on it for the first two hours. When I wanted to send a whatsapp, I noticed battery had already fallen to 70% in only 4 hours or so - 4 hours of doing nothing while the phone was in energy savings mode! Half way through the day, with only some whatsapping, battery had fallen to 20%. When I connected it to the charger, it instantly dropped to 8%. After about an hour of charging, it was at 17% and said it would last another 6 hours before the phone would be fully charged. Usually I charge my phone in 1.5 - 2 hours!
When I did the update, I didn't do a factory reset and I would like to only do that as a last resort.
If I look at te battery statistics, I don't see any app using an obscene amount of battery life - the highest being Google Play services with 15%. But what I do notice is that "Cell standby" is responsible for 29% of the battery drainage.
Before I do a factory reset, anyone any tips?
Zippy1970 said:
I just got the OTA update from KitKat to Lollipop (5.0.2) yesterday and I've noticed terrible battery life and very slow charging since then. My phone is always in its charger overnight and when I remove it from the charger in the morning it usually easily lasts until I put it in the charger at night again. During the daytime I do a lot of stuff on it (whatching youtube videos, listen to internet radio, whatsapp, internet browsing, making phonecalls etc).
This morning I removed it from the charger and hardly didn't do anything on it for the first two hours. When I wanted to send a whatsapp, I noticed battery had already fallen to 70% in only 4 hours or so - 4 hours of doing nothing while the phone was in energy savings mode! Half way through the day, with only some whatsapping, battery had fallen to 20%. When I connected it to the charger, it instantly dropped to 8%. After about an hour of charging, it was at 17% and said it would last another 6 hours before the phone would be fully charged. Usually I charge my phone in 1.5 - 2 hours!
When I did the update, I didn't do a factory reset and I would like to only do that as a last resort.
If I look at te battery statistics, I don't see any app using an obscene amount of battery life - the highest being Google Play services with 15%. But what I do notice is that "Cell standby" is responsible for 29% of the battery drainage.
Before I do a factory reset, anyone any tips?
Click to expand...
Click to collapse
This is directly from HTC tech support. To recalibrate battery and HTC charger when battery rapidly or erratically discharges, this procedure clears all battery stats, coordinates and normalizes charging.
Turn off Fast Boot in settings. Power off phone.
Plug phone into HTC wall charger and charge for two minutes or more
While charging, hold down volume up+volume down+power button and continue holding
Phone will turn on and off repeatedly every 15 seconds or so while continuing to hold all three buttons
Keep this going for 2 minutes, then release buttons WHEN THE PHONE IS ON
Now, let phone charge fully normally (with phone either on or off--doesn't matter) and battery level reporting, charging and battery life should be normalized.
Do this every month or so to keep power system healthy--even if everything seems fine. Also, don't leave phone on charger overnight for best long term battery life (according to HTC tech support: "The first thing they tell us." This is true even though charging is supposed to turn off when battery is at 100%)
Battery recalibration ... Many techs say it's a placebo. But, I will follow this manual, just in case.
I do confirm, though, that with L 5.0.2 charging takes longer, phone drains faster with the same as before apps and usage, phone is often hot, and I've started to get regular 'can't charge, your phone uses more power than available from charger'.
Re phone uses more power than available, it happens with all three original HTC chargers I have, so I have to use the charger from an Asus tablet (1.5A output).
I haven't done the recalibration thing but I did some measurements and I now know why it's charging so slowly, just not what is causing it. The phone isn't switching to high charging mode and keeps charging at around 400mA. This means that when using the phone, it's draining faster than it can charge. I also think it's not switching to standby mode causing the high drain. Often the phone gets hot when it's in my pocket (when it is supposed to be in standby mode) meaning something is still draining the battery fast.
I will do the calibration thing and see if that helps.
I just did the reset thing (holding power + vol up + vol down) for two minutes. It's now charging but I can see it's still not charging in high mode. It's still charging at only 400mA.
Edit: Phone says it wil take 10 hours to charge (it's at 30% now).
Annoying, I know, but I'd factory reset the phone just to make sure the update has 'taken' correctly
Zippy1970 said:
... The phone isn't switching to high charging mode and keeps charging at around 400mA. ...
Click to expand...
Click to collapse
Sounds logical. How did you find it out? Instrumental, or through a phone menu?
I have checked Setings/Power. Mine says Charging on AC, which supposedly means high charging mode.
PS. Again, whatever it might mean, when I get a 'phone uses more power than..' error, I connect the phone to a 1.5A charger (compared to original HTC 1.0A) and it solves the problem. I'm not happy with this solution, though.
zeemenshater said:
Sounds logical. How did you find it out? Instrumental, or through a phone menu?
Click to expand...
Click to collapse
There are a few ways I can measure this. I have a "Charger Doctor", one of those inline USB voltage/current meters and I have an "Energy Meter" which measures wattage going out of a 110/220V socket. Both confirm each others measurements. The Charger Doctor says my phone is being charged at 5.1V at 0.4A, and the energy meter says the charger consumes about 2.5W which is about right (the charger looses some energy through heat and the Charger Doctor consumes a bit of energy as well).
But...
To be sure, I tested a few different (but identical) chargers and changing the charger made no difference. But - and here comes the strange part - I tested about 20 different USB cables and with only two my phone charged at 1.0A (which I assume is the M7's max charging current). With all the others it charged with 0.3A-0.5A. Only with those two cables it charges in high charging mode. So apparently something changed in the charger detection. Before the update I was able to charge the phone in high charging mode with other cables as well.
Also, it seems like it's now discharging not as fast as before, but I will be sure tomorrow after it has fully charged and after I've used it all day.
Edit: Yep, charging is at it's normal speed now. It's at 60% and the phone says it will be 1 hour and 1 minute until it's fully charged.
Edit2: Of the two cables it charges at 1.0A with, one is the original charger cable that came with the HTC, and the other is a cable that came with a Duracell Power Bank.
Well, after the three finger calibration, charging seems faster, and I think battery holds longer (or maybe I want to think it does, because still not sure).
One additional observation is in about 20% cases my phone is stuck during boot until I connect or disconnect the charger for a second. By connecting or disconnecting the charger, something triggers the power state and the phone boots normally.
So yes, you may be right about new power management in Android 5.
(I'm now on IC7.0.0 + ElementalX 20.0, HTC M7 Int'l))
Well, even though charging times seem normal now, it is slightly erratic. I can see the percentage making jumps up and sometimes down while charging.
Also, battery life still is very poor. Battery now lasts until halfway through the day while before it would easily last all day...
Is there a way to revert to KitKat? Other than a lot of annoyances I haven't noticed a single advantage using Lollipop.
Seanie280672 said:
This is directly from HTC tech support. To recalibrate battery and HTC charger when battery rapidly or erratically discharges, this procedure clears all battery stats, coordinates and normalizes charging.
Turn off Fast Boot in settings. Power off phone.
Plug phone into HTC wall charger and charge for two minutes or more
While charging, hold down volume up+volume down+power button and continue holding
Phone will turn on and off repeatedly every 15 seconds or so while continuing to hold all three buttons
Keep this going for 2 minutes, then release buttons WHEN THE PHONE IS ON
Now, let phone charge fully normally (with phone either on or off--doesn't matter) and battery level reporting, charging and battery life should be normalized.
Do this every month or so to keep power system healthy--even if everything seems fine. Also, don't leave phone on charger overnight for best long term battery life (according to HTC tech support: "The first thing they tell us." This is true even though charging is supposed to turn off when battery is at 100%)
Click to expand...
Click to collapse
that wouldn't work for me i don't have fastboot
carinfex said:
that wouldn't work for me i don't have fastboot
Click to expand...
Click to collapse
lol :silly: you cant rule out that it wont work just because HTC decided to remove the software switch in the power options in its later updates, do the rest of it and skip that part, I dont have the option for fastboot either anymore.
Seanie280672 said:
lol :silly: you cant rule out that it wont work just because HTC decided to remove the software switch in the power options in its later updates, do the rest of it and skip that part, I dont have the option for fastboot either anymore.[/QUOTE
i have done everything i can i even have a battery saver but soon as i put wifi on it just drains so fast maybe a new battery will help as this phone is like 2nd hand so maybe battery dying
Click to expand...
Click to collapse
Factory reset
I had terrible battery problems after T-Mobile upgraded my HTC One (M7) to Lollipop. The phone was constantly awake and churning with the GPS probing for a signal every few seconds. I'd lose 50% of my battery in a couple of hours. I went through the battery recalibration suggested by HTC support, but it didn't work well. Finally I did the factory reset. It worked perfectly! Now my battery life is better than ever and the phone will go well over 24 hours on a single charge with normal usage. Recovering from the factory reset was easier than I anticipated. Google Play Store remembered and reloaded all my apps automatically. The only headache was having to log in to everything again. Well worth the effort.
I did a factory reset as well and it looks like it has improved battery life. I'm still on my first day after the reset so I won't be able to really tell after I've used it for a couple of days. But like I said, the hard reset seems to have made a difference.
It has been 15 hours now since I unplugged the phone from the charger and it still has 43% left. But I just noticed a few minutes ago that two energy settings were set different than before the hard reset. Screen brightness was set to auto (when before I had set it to it's first dim setting), and data connection was set to switch off after a long period of inactivity. (while before it was set to always on). I've changed those settings and see if that makes a (big) difference.
Zippy1970 said:
I did a factory reset as well and it looks like it has improved battery life. I'm still on my first day after the reset so I won't be able to really tell after I've used it for a couple of days. But like I said, the hard reset seems to have made a difference.
It has been 15 hours now since I unplugged the phone from the charger and it still has 43% left. But I just noticed a few minutes ago that two energy settings were set different than before the hard reset. Screen brightness was set to auto (when before I had set it to it's first dim setting), and data connection was set to switch off after a long period of inactivity. (while before it was set to always on). I've changed those settings and see if that makes a (big) difference.[/QUOT
leave your wifi on for about a hour then tell me if any different
Click to expand...
Click to collapse
carinfex said:
leave your wifi on for about a hour then tell me if any different
Click to expand...
Click to collapse
I have Wifi always on.
Tested it for another day and battery life has definitely improved quite a bit but it's still nowhere near what it used to be with KitKat.
Zippy1970 said:
I have Wifi always on.
Tested it for another day and battery life has definitely improved quite a bit but it's still nowhere near what it used to be with KitKat.
Click to expand...
Click to collapse
when i woke up this morning my m7 was 100% it's now 11;10 and it,s now 70%
I'm getting exactly the same problem.
HTC support said they never heard about such a problem and their conclusion is to send the phone to be repaired
I don't know how to rollback to previous version and it doesn't looks like to be a new fixed version on the way.
Or at list I haven't heard about it.
I also noticed it doesn't make much of a difference if I turn on energy savings mode.
With KitKat, my phone would easily last the whole day without energy savings mode. Now with lollipop I have to hook it up to a charger in the evening - even with energy savings mode enabled.
The thing that sucks the most is that my phone drains in alarming rate when playing a game, or listening to online radio or watching youtube videos. 30 minutes and battery drops from 100% to 50%. And the phone gets really, really hot. Before lollipop, it would drain perhaps from 100% to 85% and the phone would not heat up at all.
There are so many annoying bugs/features with lollipop, I'm considering an iPhone for the very first time ever as my next phone. Mind you, I've never been a fan of Apple stuff. But Android is just getting ridiculously bloated and simply doesn't work very well anymore. It looks like every update makes my phone less usable. And I hate the fact Google thinks it's perfectly fine to disable/remove stuff that people have come to depend on. Like my notes (amongst man other things). Google in all its wisdom has removed the Notes app making all my notes inaccessible. The only way to get my notes back is to install some third party app from the Play Store and have it transfer my notes to the cloud. First of all, I don't want a third party app handling my notes. And I most certainly don't want my notes stored in the cloud. I travel quite a bit and I don't have internet access everywhere I go, making my notes inaccessible again.

Question Batter and drop of refresh rate

Hi all,
2 days ago I decided to calibrate battery, which is done by fully charging phone, then fully discharging phone with normal use. But phone turns off at 1% and doesn't fully discharge, so I turned it back on and stayed alive for 40mins at highest brightness watching videos on Facebook until finally turned off.
Then fully charge your phone while device is off, (but because device fully drained will be a bit tricky to charge it, don't know why, look like keeps 1% of charge to save charging settings or something) anyway, after a few attempts of plug in and un plug I managed to get it charging, and charged in full.
Result:
Better battery life, obviously. And the strange one is that refresh rate drop when unlocking device as stopped and device is smooth everytime, been over 2 days now without a single drop. Not sure how is this related but this happened with me, free to try it if you wish.
Thought to share my experience.
Happy to answer questions
How did you turned on? After i get the notification that in 30 seconds phone will shutdown, it does shutdown and when i keep pressed the power button its powering, showing mi logo then one logo with empty battery and shuts down again.

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