So the last couple of days I've been trying to cycle my battery to see if I can get some more use out of it and I have noticed a strange problem. When I drain the battery completely it will automatically turn off but when I plug the charger in and turn the phone back on it will show that it have anywhere from 20-30% usable battery life remaining. Any ideas what is going on?
Let it die after it says 30%.
unplug charger and let it die.
DIE DIE DIE!!!!
Then you can wipe battery stats.
HG! said:
Let it die after it says 30%.
unplug charger and let it die.
DIE DIE DIE!!!!
Then you can wipe battery stats.
Click to expand...
Click to collapse
^^After it dies, turn it back on and let it die again... and again... and again until it won't do ANYTHING. Then you can recondition it.
HG! said:
Let it die after it says 30%.
unplug charger and let it die.
DIE DIE DIE!!!!
Then you can wipe battery stats.
Click to expand...
Click to collapse
how do you wipe the battery stats if you're stock? I know theres the option in clockworkmod, but i dont have that on my vibrant at the moment.
Are you rooted? Just download rom manager and use the flash cwm option. Afterwards, boot to stock recovery and select reinstall packages to get into cwm.
Sdobron said:
Are you rooted? Just download rom manager and use the flash cwm option. Afterwards, boot to stock recovery and select reinstall packages to get into cwm.
Click to expand...
Click to collapse
i am (check the sig) but you need a modified 3e recovery in order for cwm to stick if you're on official KA6 and I'm being a chicken right now (the phone is working great for the first time in a while, minus the battery life and im not ready to mess anything up)
JUST ROOT IT! Its the best you can do with an android phone trust me just downgrade it back to 2.1 with odin and root from there. There's almost no way you could brick your phone. But its okay if you don't because I was chicken until this 2.2 upgrade came and I've already bricked once but fixed it with odin. But trust me once you root you'll never regret that's how I felt about my mytouch 3g 1.2, cliq, mytouch slide, and vibrant.
Sent from my SGH-T959 using XDA App
skyze said:
So the last couple of days I've been trying to cycle my battery to see if I can get some more use out of it and I have noticed a strange problem. When I drain the battery completely it will automatically turn off but when I plug the charger in and turn the phone back on it will show that it have anywhere from 20-30% usable battery life remaining. Any ideas what is going on?
Click to expand...
Click to collapse
One of the functions of the battery stats file is to help the phone decide when your battery is nearly dead. This lets the phone perform a clean shutdown instead of just losing power and dying.
If I were you, I'd charge the phone fully, wipe the battery stats file, use it normally without charging until it ran down completely to power-off, then recharge it -- and maybe let it run down completely one more time at least.
It could be that something about your usage patterns makes the phone "expect" the battery to die sooner than it really does, or maybe the 20% reading upon power-up is incorrect and the phone actually runs out of juice faster than the phone expects.
Either way, resetting your battery stats is probably the best fix.
Related
So what exactly is the correct way to recondition your battery after installing a new rom? I have been following the Bionix version of recondition below
1. Charge phone completely, leave plugged into power
2. Boot into recovery
3. Wipe battery stats
4. Reboot
5. Remove power cable
6. Drain that sucker all the way
7. Recharge fully
But i see there is some discussion on the proper way, and this one ruining your battery life. What is the actual correct way then?
That's the method I used a few weeks ago. Can't say there was any noticeable improvement, but I've never read that it was the wrong way....
mystycs said:
So what exactly is the correct way to recondition your battery after installing a new rom? I have been following the Bionix version of recondition below
1. Charge phone completely, leave plugged into power
2. Boot into recovery
3. Wipe battery stats
4. Reboot
5. Remove power cable
6. Drain that sucker all the way
7. Recharge fully
But i see there is some discussion on the proper way, and this one ruining your battery life. What is the actual correct way then?
Click to expand...
Click to collapse
Please read THIS --> http://forum.xda-developers.com/showthread.php?t=877597
..... And / Or .....
http://lmgtfy.com/?q=lithium-ion+deep+cycle
T313C0mun1s7 said:
Please read THIS --> http://forum.xda-developers.com/showthread.php?t=877597
..... And / Or .....
http://lmgtfy.com/?q=lithium-ion+deep+cycle
Click to expand...
Click to collapse
So in all essence... Dont do it! Haha then what is the point of wipe battery stats? Should i still at least wipe it at 100 percent after its charged, and then just use it normally.
mystycs said:
So in all essence... Dont do it! Haha then what is the point of wipe battery stats? Should i still at least wipe it at 100 percent after its charged, and then just use it normally.
Click to expand...
Click to collapse
The "point" of it is just to get the software to know the upper and lower limits of the battery to it can more accurately determine its current level. It learns the battery level and becomes more accurate over time, but many here flash new ROMs too frequently for it to get the chance. Just use your phone and don't worry about the battery, you will be fine. Leave it on all the time, even at night. Charge it when ever you are idle for any length of time and over night. You can not over charge it and it does not have a memory, but you can certainly shorten its lifespan by deep cycling it. If you think the battery meter is really way off what it should be then clear it first thing in the morning after it has been charging. Also, don't be surprised if you rarely or never see 100%. This is the normal way the charger keeps heat buildup from killing the battery. 97% to 99% after a charge is fine.
Thanks T313C0mun1s7, that's the most sensible advice about the battery I've read in awhile.
Yesterday, I let my battery die. Charged it last night, and wiped battery states. Ran the phone like normal today. Was down to about 30% left, rebooted. When everything came back up and running, that battery showed to be 5%. WTF!!! How do I drop 25%, just by rebooting?!?!?!?
chadhoard said:
Yesterday, I let my battery die. Charged it last night, and wiped battery states. Ran the phone like normal today. Was down to about 30% left, rebooted. When everything came back up and running, that battery showed to be 5%. WTF!!! How do I drop 25%, just by rebooting?!?!?!?
Click to expand...
Click to collapse
Bad battery stats...
Recondition
xriderx66 said:
Bad battery stats...
Recondition
Click to expand...
Click to collapse
So...I should wipe the battery stats again after re-charging to 100%?
Then wipe the battery stats in advanced of recovery mode
xriderx66 said:
Then wipe the battery stats in advanced of recovery mode
Click to expand...
Click to collapse
I re-wiped the battery stat this morning. I was down to about 50% when I needed to reboot. When everything came back up, it showed I was down to 28%. Is this an indication that the battery needs to be replaced or should I try a different Kernel?
Either you have a bad battery, bad battery meter, or your not reconditioning right.
Longcat14 said:
Either you have a bad battery, bad battery meter, or your not reconditioning right.
Click to expand...
Click to collapse
What would you suggest I try? What is the proper way to recondition my battery?
Charge to 100%
Boot into recovery
Wipe battery stats
Reboot
Don't unplug charger until at desktop again (You could debate this one, but that's when I do it)
And don't worry about killing your battery, it'll do more harm than good.
Explanation - When you wipe battery stats, it tells your phone you're at 100%
So, if you wipe when you ARE at 100% you'll get accurate readings.
Eogram said:
Charge to 100%
Boot into recovery
Wipe battery stats
Reboot
Don't unplug charger until at desktop again (You could debate this one, but that's when I do it)
And don't worry about killing your battery, it'll do more harm than good.
Explanation - When you wipe battery stats, it tells your phone you're at 100%
So, if you wipe when you ARE at 100% you'll get accurate readings.
Click to expand...
Click to collapse
The past 2 times I did this, the phone was turned off and plugged in and charged over night. this morning I wiped the stat, but i do not remember if I had unplugged it before it finished booting up. I am charging it now, with it on. When it reaches 100%, should I reboot into recovery and wipe it or should I let it run all the way down?
What exactly do you mean by 'let it run all the way down'?
Sent from my SGH-T959
Eogram said:
What exactly do you mean by 'let it run all the way down'?
Sent from my SGH-T959
Click to expand...
Click to collapse
Down to say some were around 20 - 5%.
As far as I understand that shouldn't be necessary, and could weaken your battery.
As long as it's fully charged when you wipe the stats you should be good to go.
Sent from my SGH-T959
Eogram said:
As far as I understand that shouldn't be necessary, and could weaken your battery.
As long as it's fully charged when you wipe the stats you should be good to go.
Sent from my SGH-T959
Click to expand...
Click to collapse
I have another 20% to go. i will let you know tomorrow how things work out.
Eogram said:
As far as I understand that shouldn't be necessary, and could weaken your battery.
As long as it's fully charged when you wipe the stats you should be good to go.
Sent from my SGH-T959
Click to expand...
Click to collapse
Ok...I have ran the phone like normal. Within 6 hours, I am down to 62%. I rebooted the phone, and it still shows me at 62%. At least I have that fixed.
Now, I see some people use OverStock and seem to be getting better battery life. I just want to get about 16+ hours out of my battery. Right now i seem to be pushing 12 hours. What is the tick that i am missing??
For every hundred vibrant users there seems to be a hundred different accounts of battery life, and a hindered different opinions on how to keep it down. 12 hours on the stock battery is pretty good, especially compared to stock.
Mine'll last me around 15+, if I left it not charging, i think.
I'm on overstock, the screen is at the dimmest 95% of the time, and I use setcpu. 1000/1000 with a screen off profile of 200/200. So, that works for me pretty well.
Sent via telepathy
You need to recondition yr battery as posted above, 2-4 cycles. But i prefer to re-flash ROM when battery 100%, should you get proper batt stats.
You may buy new one to test yr system n batt stats, also good for spare. Or just borrow yr friends battery, just to check yr rom n batt stats. Treat it like you did before.
Good luck.
Eogram said:
For every hundred vibrant users there seems to be a hundred different accounts of battery life, and a hindered different opinions on how to keep it down. 12 hours on the stock battery is pretty good, especially compared to stock.
Mine'll last me around 15+, if I left it not charging, i think.
I'm on overstock, the screen is at the dimmest 95% of the time, and I use setcpu. 1000/1000 with a screen off profile of 200/200. So, that works for me pretty well.
Sent via telepathy
Click to expand...
Click to collapse
200/200 conservative scaling and no sleep death? Didn't know that was possible on overstock...guess I'll try it.
Edit: sleep of death...you must be on power save or something which afaik doesn't work at all.
*checks*
Yeah, powersave. What's this about it not working? It occasionally lags a little when I unlock it and the widget definitely says 200
Sent via telepathy
I don't think powersave is supported...try conservative and you'll get sleep death due to the low frequency...you don't get this with powersave because I don't believe it's working...trying to confirm this.
should i wipe battery stats i switching from extend. battery to stock. or only when switching roms? when does this matter?
[Also i know this doesn't belong here but my PC is really slow do easiest way is to ask: is there someway to search all my posts at once as they're becoming hard to keep track of ?]
CleveRuse said:
should i wipe battery stats i switching from extend. battery to stock. or only when switching roms? when does this matter?
[Also i know this doesn't belong here but my PC is really slow do easiest way is to ask: is there someway to search all my posts at once as they're becoming hard to keep track of ?]
Click to expand...
Click to collapse
I switched back to my stock battery after my extended died. I wiped battery stats, wiping stats when flashing new roms is recommended.
Wiping battery stats is never really considered an essential thing to do no matter what. It is nice though to do. I suggest it when you start realizing crap battery life on one ROM/kernel compared to the last one. The suggested way is to wipe it after installing a new kernel and as well as when you swap batteries. Other than that, really no need to in my eyes.
I wipe after every new ROM install, period.
ProTekk said:
The suggested way is to wipe it after installing a new kernel and as well as when you swap batteries. Other than that, really no need to in my eyes.
Click to expand...
Click to collapse
This is when I do it also.
Digging up a thread here, didn't want to waste a new one.. But I have the OEM Extended Battery and I tried wiping my battery stats.. Charge full, reboot into recovery, wipe stats, unplug.. After this I noticed that my battery said 93% even tho the charge light was green.. I drained it until it turned off and charged again overnight.. In the AM, light was green, i turned phone on and its still showing 93% even though it was green. Any ideas? Did I lose that 7% forever?
Sometimes wiping the stats causes a bad battery read. A few reboots should get you back on track. If that doesn't work, try a full battery drain then a full charge. Let us know.
Will try that, even tho I kinda did already. I'm hoping with a few battery cycles the problem goes away.. What Im hoping is I don't need to bump charge now every time like I did when I had my inc
Sent from my ADR6400L using Tapatalk
drawde said:
Did I lose that 7% forever?
Click to expand...
Click to collapse
I doubt you lost anything. It would be like Spinal Tap having an amp which only went to 9.
I only had to wipe when my battery wasn't decreasing in percentage. After I wiped, it started decreasing like it should. I would think any fast reduction in percentage would be a bad battery.
Are there any proven facts out there that it is really ever necessary to wipe them? It's not like it actually improves battery life am I correct?
as far as wiping battery stats goes.
i have only used it when reconditioning a battery.
ie if you start noticing bad (read: worse that you have been getting) battery life after flashing a new rom or kernel. or just after a time using a standard rom.
what i do is
1 turn the phone off.
2 charge it on AC until it goes green and for an hour afterward.
3 unplug it and wait 30 seconds.
4 plug it back in and repeat step 3 until the light goes from red to green within 20 or so seconds. (this is called bump charging)
5 boot into CWR and wipe battery stats. and let it burn all the way down until it wont even turn on (flashing orange led)
6 charge to full and enjoy your maybe improved battery life.
when wiping battery stats, do i have to do it a few times or no? i wiped battery stats at full and drained battery until it turned off twice.. once wiping the stats with CWR and once, and after a cycle, with the 'battery calibrate' app (made by someone here on xda i believe)..
seems to be working okay i guess, but lets say i have 94%, i reset my phone and it comes back with only 84%.. it appears it's still reading my battery wrong by around 10%. is this normal?
It doesn't happen at every reset, looks like just the first one of the day. I guess I can charge to full, reboot, and charge to full again as a workaround.
Sent from my ADR6400L using Tapatalk
i meant to ask this before but I forgot, can anyone try to do that and let me know if it happens to them too or if its just me
Charge with phone on until full then turn it off and charge.. about how long does it stay amber?
Sent from my ADR6400L using Tapatalk
Yea, as the title says.
is there a way to fix this ?
THANKS!
I would try re-calibrating your battery. Try this which is straight from my MIUI guide.... (I suggest method 2 as it is the easiest)....
RECONDITION YOUR BATTERY
AFTER FLASHING IF YOU FIND THAT YOU HAVE BAD BATTERY LIFE TRY ONE OF THE METHODS BELOW TO FIX:
Method One:
Use phone till it dies on its own, completely dead.
Charge phone completely, plus 30 minutes longer.
Unplug phone from charger
Reconnect, you'll notice it's not full, charge till it is again.
This is bump charging and NOT something you want to do often, a few times is okay, in my opinion. You could skip the bump charge if you like.
Phone remains plugged in.
Boot into recovery (volumes + power)
Advanced > wipe battery stats, reboot.
Use phone till it's literally about to shut off (or does) Charge till full + Use phone like normal
OR
Method Two:
Download the Battery Calibration app by NeMa from the Android Market
Click to expand...
Click to collapse
Tell me if this works for you...
A real battery capped to charge at 96% or 97% due to voltage issues that would occur if charged to complete 100%. But samsungs stock ROMS and most other ROMS are customized to display this 100% when its really not at that level. Since MIUI is based off of CM7(and this is uncredited of course), it is not modified in any way and it displays the actual battery life. Which in your case is 96%. Hope this helps.
Sent from my SGH-T959 using xda premium
Im unlocked rooted running wetdream. Ever since installing it, the battery indicator wont show charge beyond 95%. When charging with phone off, it reaches 100% but as soon as I power on, it only shows 95%. I've done battery cal app, let die completely twice, charge overnight, pull battery while still plugged in (which I never got missing battery notice for) and wiped battery stats in recovery. Is this something I just need to learn to live with or anyone have any other ideas? Btw, im loving nottachs wetdream rom. I know this has been posted elsewhere, I've tried all those tips. Just wondering if there are any new tried tips I can look into. Tia
Sent from my MB860 using XDA App
Have you tried a fresh reflash of the ROM after you did the battery calibrations?
Sent from my Atrix XDA Premium App
Voelker45 said:
Have you tried a fresh reflash of the ROM after you did the battery calibrations?
Sent from my Atrix XDA Premium App
Click to expand...
Click to collapse
No I haven't. Will try that next. Thanx.
Sent from my MB860 using XDA App
I had same issue.. Using Battery Dr app to charge my phone.. I just let the phone get down below 20% and then did a full cycle charge again.. that fixed it for me
NinjaWookie said:
I had same issue.. Using Battery Dr app to charge my phone.. I just let the phone get down below 20% and then did a full cycle charge again.. that fixed it for me
Click to expand...
Click to collapse
How did it fix it for you? I tried it last night and still only reached 95%
No need of any app. Just drain the battery till it powers off. Full charge without switching it on. Should get the 100% bck.
Sent from my MB860 using Tapatalk
i had same issue too,tried a full wipe or flashed different sbfs,but it didn't work at all.i guess it is gingerbread's fault.this didn't happened in 2.2.
anupash said:
No need of any app. Just drain the battery till it powers off. Full charge without switching it on. Should get the 100% bck.
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
I've done that twice with no effect.
kidqian said:
i had same issue too,tried a full wipe or flashed different sbfs,but it didn't work at all.i guess it is gingerbread's fault.this didn't happened in 2.2.
Click to expand...
Click to collapse
I never had this on stock, but with the 10% changes in battery, would I have noticed.
When you are installing custom ROM, this is expected. You can try this,
Steps:
1. Drain your battery till gets shut off, then charge it till it says "Fully Charged" irrespective of 95% or 100%.
2. Once charged, Reboot the phone in recovery mode, keep the phone plugged into charger
3. Start it in Recovery mode using CMW, then remove battery stats
4. Switch off the phone
5. It show battery icon with %, with plugged in remove the battery
6. it will show missing battery icon, then insert the battery.. it will show 5% or 20%
7. Charge it for 3-4 hrs, then reboot the phone, you will see 100%
This Fixed for me...
Hi I've been using Neutrino for weeks and have not been able to get past 97pc battery using all techniques on xda. I finally fixed it yesterday when I installed clamsysns 1.5 kernel and charged over night and it was back to 100.
Sent from my MB860 using Tapatalk
Just an update. I installed the newest version of wetdream yesterday. Got it to charge to 100% then thru resetting up phone and such, dropped to 18%. Recharged but didn't make it to 100% this time. Got to 95% but 4200mv, so I assumed full charge. At that time it was bedtime, so decided to just plug back into charger for the night. This morning it read 100% again. So its basically getting its full charge, just not showing all the time. A glitch I guess ill have to live with.
zigbee_chitti said:
When you are installing custom ROM, this is expected. You can try this,
Steps:
1. Drain your battery till gets shut off, then charge it till it says "Fully Charged" irrespective of 95% or 100%.
2. Once charged, Reboot the phone in recovery mode, keep the phone plugged into charger
3. Start it in Recovery mode using CMW, then remove battery stats
4. Switch off the phone
5. It show battery icon with %, with plugged in remove the battery
6. it will show missing battery icon, then insert the battery.. it will show 5% or 20%
7. Charge it for 3-4 hrs, then reboot the phone, you will see 100%
This Fixed for me...
Click to expand...
Click to collapse
i am trying to do this, but no matter how long my phone stays connected it never says fully charged, just keeps showing the animated goo at 90% on top of battrey, it can do that forever, should i try what you said even if it does not say fully charged?