Hi fellas..
Maybe you've noticed the messages I've sent to Unofficial BravoS thread of Coolexe's (http://forum.xda-developers.com/showthread.php?t=1200517&page=51) which is the ROM I use.
The issue is, the battery discharges rapidly. Actually, if you check mV values, it doesn't discharge rapidly, but if you look at percentages, there is a huge inconsistency. I used Battery Monitor Widget to log the battery performances last night, and saw these horrible results:
Code:
2011/09/19|04:59:49|-515mA|37%|3581mV|40.2ºC|1|0
2011/09/19|05:00:51|-465mA|36%|3576mV|40.2ºC|1|0
2011/09/19|05:01:49|-460mA|36%|3576mV|40.2ºC|1|0
2011/09/19|05:02:50|-462mA|35%|3517mV|40.2ºC|1|0
2011/09/19|05:03:49|-477mA|35%|3517mV|40.2ºC|1|0
2011/09/19|05:04:50|-471mA|34%|3449mV|40.3ºC|1|0
2011/09/19|05:06:06|-478mA|0%|3415mV|40.5ºC|1|0
2011/09/19|05:06:08|-478mA|0%|3415mV|40.5ºC|1|0
These are the last lines of the log, before the phone shuts down. As you can see, the phone gone to 0% from 34% in one minute! No low battery warnings or whatsoever..
Funny thing is, this doesn't happen in StarBurst ROM (which is a Froyo based one). Do you reckon this is a GingerBread issue or something? I saw some other people complaining about their phone shutting down at 20% as well.
So, what do you suggest?
when you look at the voltage there isnt that much drain, so its only a displaying problem
wipe battery stats and maybe recalibrate the battery
but first one should fix it
cheers
ps: i just checked, my desire is at 18% with 3.693mV, now you see the differance
crendot said:
when you look at the voltage there isnt that much drain, so its only a displaying problem
wipe battery stats and maybe recalibrate the battery
but first one should fix it
cheers
ps: i just checked, my desire is at 18% with 3.693mV, now you see the differance
Click to expand...
Click to collapse
This is what I've done so far:
Drained battery to 0% (log above) and charged it a little bit while powered off (like 20%). Turned on the phone, and obtained those logs (last lines only):
Code:
2011/09/19|14:41:25|-268mA|10%|3644mV|38.1ºC|1|0
2011/09/19|14:42:25|-267mA|10%|3644mV|38.1ºC|1|0
2011/09/19|14:43:25|-270mA|10%|3644mV|38.1ºC|1|0
2011/09/19|14:44:25|-269mA|9%|3644mV|38.1ºC|1|0
2011/09/19|14:45:25|-267mA|9%|3644mV|38.1ºC|1|0
2011/09/19|14:46:25|-268mA|9%|3644mV|38.1ºC|1|0
2011/09/19|14:47:25|-266mA|8%|3644mV|38.1ºC|1|0
2011/09/19|14:48:25|-267mA|8%|3644mV|38.1ºC|1|0
2011/09/19|14:49:25|-269mA|7%|3640mV|38.0ºC|1|0
2011/09/19|14:50:25|-267mA|7%|3640mV|38.0ºC|1|0
2011/09/19|14:51:25|-266mA|7%|3640mV|38.0ºC|1|0
2011/09/19|14:52:25|-267mA|7%|3640mV|38.0ºC|1|0
2011/09/19|14:53:25|-267mA|6%|3640mV|38.0ºC|1|0
2011/09/19|14:54:25|-267mA|6%|3640mV|38.0ºC|1|0
2011/09/19|14:55:25|-267mA|5%|3635mV|38.0ºC|1|0
2011/09/19|14:56:25|-266mA|5%|3635mV|38.0ºC|1|0
2011/09/19|14:57:25|-267mA|5%|3635mV|38.0ºC|1|0
2011/09/19|14:58:25|-268mA|5%|3635mV|38.0ºC|1|0
2011/09/19|14:59:25|-268mA|4%|3630mV|38.0ºC|1|0
2011/09/19|15:00:25|-319mA|4%|3630mV|38.0ºC|1|0
2011/09/19|15:01:25|-268mA|4%|3630mV|38.0ºC|1|0
2011/09/19|15:02:25|-270mA|3%|3610mV|38.1ºC|1|0
2011/09/19|15:03:25|-269mA|3%|3610mV|38.1ºC|1|0
2011/09/19|15:04:25|-270mA|2%|3586mV|38.1ºC|1|0
2011/09/19|15:05:25|-273mA|2%|3586mV|38.1ºC|1|0
2011/09/19|15:06:25|-273mA|2%|3586mV|38.1ºC|1|0
2011/09/19|15:07:25|-273mA|2%|3586mV|38.1ºC|1|0
2011/09/19|15:08:25|-289mA|1%|3513mV|38.3ºC|1|0
2011/09/19|15:09:25|-290mA|1%|3513mV|38.3ºC|1|0
2011/09/19|15:09:51|-290mA|0%|3464mV|38.3ºC|1|0
It seems more "smooth" discharge now. Right now, I'm charging my phone off; going to turn on phone once it reaches "green light" with charger on, and plug it off once phone booted. Maybe then, it can know what's maximum and minimum.
So far, I tried to charge my phone to full and erase batterystats.bin but, as you can see at the first post, it didn't work well.. On the other hand, the phone charged-discharged only once in this ROM, you think it could be better if I've given a "second chance"?
i dont know much about that "battery calibrating" and reseting stuff, you have to search in the forum
only thing i want to say is, dont do that deep drains!
recharge at least 5%! you kill your battery, lithium-ion batterys get serious damage from deep drains
crendot said:
i dont know much about that "battery calibrating" and reseting stuff, you have to search in the forum
only thing i want to say is, dont do that deep drains!
recharge at least 5%! you kill your battery, lithium-ion batterys get serious damage from deep drains
Click to expand...
Click to collapse
I know, but when phone thinks it's 30% and not warn me, how can I do it?
In order to calibrate the battery meter - FYI the battery itself cannot be calibrated, as Li-Ion batteries have a very low memory compared to old Ni-Cd etc. batteries - you have to go through the following procedure:
1) charge the battery to 100%;
2) let the battery discharge until the phone shuts itself down;
3) plug the wall charger into the phone, boot the phone up then charge the battery to 100% without interruptions.
If the above procedure does not yield the expected results, you can try fully charging the phone (LED showing green) with it completely turned off (after completely draining it). Again, the charging procedure should not be interrupted.
Source: personal experience - had to do this twice after installing new ROMs, as the phone was shutting down at ~14% (working like a charm now).
Regarding the matter of battery wear because of complete discharges, Li-Ion batteries do indeed have a lower cycle count than old-school batteries, but the standard charge/discharge number a Li-Ion battery can take is ~350, so you can't damage the battery pack by doing a full cycle per month (required to keep the battery meter accurate).
Good luck!
TVTV said:
In order to calibrate the battery meter - FYI the battery itself cannot be calibrated, as Li-Ion batteries have a very low memory compared to old Ni-Cd etc. batteries - you have to go through the following procedure:
1) charge the battery to 100%;
2) let the battery discharge until the phone shuts itself down;
3) plug the wall charger into the phone, boot the phone up then charge the battery to 100% without interruptions.
If the above procedure does not yield the expected results, you can try fully charging the phone (LED showing green) with it completely turned off (after completely draining it). Again, the charging procedure should not be interrupted.
Source: personal experience - had to do this twice after installing new ROMs, as the phone was shutting down at ~14% (working like a charm now).
Regarding the matter of battery wear because of complete discharges, Li-Ion batteries do indeed have a lower cycle count than old-school batteries, but the standard charge/discharge number a Li-Ion battery can take is ~350, so you can't damage the battery pack by doing a full cycle per month (required to keep the battery meter accurate).
Good luck!
Click to expand...
Click to collapse
Thanks for your answer...
Today I realized that it my concern was a quick one. Today, I discharged battery to 0 percent, plugged the AC charger while it's OFF and charged it for around 2h22m until Led-green-full; then turned on the phone with charger plugged and plugged it off just after the boot process. After that, I let the phone to discharge (I helped it a little )
I actually saw "Plug your charger" warning this time, and according to Bat. Mon. Widget, it gone down until 13%! If I do compare the mV values with the old ones, I can see that somehow the phone does learn which mV value correspond to which percentage better.
Even though it gone from 13% to 0% in two minutes, it's at least better than 30% to 0%.. Also, when I check the readings after I plugged in, I saw that percentage-voltage matching is slightly higher, showing that the phone now shows lower percentage for the same voltage - which shows that it learns percentage better.
After one or two charge-discharge cycle, I think it'll learn absolute 0
BTW; the battery says 3.4V 1400mAh and my maximum voltage is 4160mV (100%) and minimum is 3415mV (0%). Are these values normal, you think?
PS: What I'd recommend from anyone who loves flashing ROMs as much as I do is: AFTER YOU FLASHED A NEW ROM, CHARGE YOUR BATTERY TO FULL (100%) AND ERASE THE BATTERY STATS. AFTER THIS, NEVER, I SAY, NEVER ERASE YOUR BATTERY STATS FOR LONG TIME IN ORDER FOR YOUR PHONE TO LEARN STATS BETTER! Erase after long time, say 3 months for wear effects to be accounted, but well, I think you should be fine even after you don't do this
Maybe you did already know that, but, well, I learned it hard way
EDIT: Phone shutdown at 13% after this, but I think it'll do better in time..
Can't Calibrate the Widget
I am having a similar issue with my htc aria. Problem is that it gets to about 78% and then won't go any higher. It even shows (in Battery Monitor Widget)
"Discharging" and "AC plugged". I have let it sit plenty long enough to be fully charged and then completely discharged it (until it shut itself down, which was not 0%) and recharged until it reaches 78% again and stops charging. I'm guessing it is so far out of whack that it says I'm at 78% but I am really at 100%.
The widget says to charge to 100% and then drain completely to 0% to calibrate. I can't do either from what I can tell. So what to do?
theGanymedes said:
Today, I discharged battery to 0 percent, plugged the AC charger while it's OFF and charged it for around 2h22m until Led-green-full; then turned on the phone with charger plugged and plugged it off just after the boot process.
Click to expand...
Click to collapse
Quick tip - let the phone charge for another hour or so after the light goes green (when charging it while powered off). I've read that the light goes green at about 95%. It takes another hour for the phone to really charge to 100%. That's because Li-Ion batteries use two stages to charge: a fast one and a slow one. More details here.
Glad i could help.
P.S. - It also took me two complete charge/discharge cycles to fully calibrate my battery meter after switching from FroYo to Gingerbread.
@vkyjackie - Try fully charging the phone while powered off. If it still doesn't fully charge (LED green), then you might have an issue with either the battery pack or the wall charger.
Related
Hi all,
I've been having issues with my phone lasting nowhere as long as my girlfriends identical one,
I installed Quick System Info on both phones, Killed all tasks.. Not only is my display duller than hers on the lowest setting using the power control widget but the voltage on my battery is 3737mV while hers is 4071mV..
Is this cause for concern?
Update, forgot to mention, this is from a full charge on both handsets.
Sounds like your battery is fu#ked!
There seems to be an issue with the way android reports the battery voltage. If I leave my phone on the charger until the light goes green and the indicator says 100%, the voltage will often report between 4.146v - 4.156v.
Upon unplugging the phone would drop to 99% and 4.125v almost immediately.
I noticed the other day that after leaving the battery on the charger overnight the voltage was reporting as 4.206v and I was able to use the phone for over 15min before it dropped to 99% from 100%.
Minimum voltage before your phone powers off is around 3.6v - 3.650v. So 3.737 is pretty close to the cut-off point. The OS is may report 100% charge but your battery is not holding charge.
I had a battery on a different device that was like this. The battery had collapsed. I could charge it for 24hrs and it would not make a difference. Within 30min of use or 1 phone call it would die.
Does your battery have any bugles, bumps or protrusions? This is often a sign of a collapsed battery.
Edit: Don't write when you're tired, silly things come out of your fingers! Soz!
have you tried to swap batteries between the two phones. That will exclude either your phone or the battery from being faulty.
Yes, after scratching my head for a few days I did eventualy come up with the genius idea of putting the battery from the other phone into my phone!! and after charging it up, set it down for an hour and then checked and the battery was on 98% !!
So it looks like there is something wrong with my battery, This morning I woke up and my phone had been charging for 7 hours and was fully charged, I looked at the battery meter and it said 100%, I turned the phone off then back on and checked again.. 90% ???? WTF ??? just from turning the phone off and on?
Hi all
Just after an opinion really, also see if anyone else is having a similar problem with there battery??
I've had my desire now since April, and recently been having issues with the battery. When charging it, the Orange LED charge light will turn green at around 94% charge and still climb to 100%. Then when its charged (for a whole night) I unplug it, battery states 100% charge for about a minute, then drops straight to 93%. I've tried it with a few roms now, standard Rom, froyo, now on pays bravesoul release, and they all do the same...
I've tried resetting battery charge status in recovery console too, but made no difference...
Surely the standard battery can't be on its way out already??
*edit*
Info in my Sig is a bit out of date, so ignore what it says lol! Running latest pays bravesoul release as mentioned, not done any tweaks to this Rom yet!
Install JuicePlotter and then monitor the usage
report back
it should show whats using the battery when it takes a huge decrease
AFAIK the charging stops after reaching 100% (probably as safety measure)
and there doesn't seem to be a trickle charge function to keep it at 100%. This is actually a good thing 'cause Li-ion and Li-poly batteries don't like to stay in the highest or lowest regions too long.
So...charging stops at 100% and after that you're running on battery. Try charging it and unplug the charger when 100% is reached (look at the actual %, not the LED. You will notice it'll go down at the same rate it always does and no jump to 93%.
I think it charges to 100%, then allows itself to drop back to 90% (the phone still shows 100% though) and when you unplug the phone from the wall, it will drop back to the "actual charge".
If you plug it back in, it should start to charge back to 100%.
Hi, sry for my english=(
When i charge my battery its normally charge to 80% and then becomes 100%.
Try calibrate battery but this doesnt help. Also try another roms and kernels.
Is it a battery issue?
U can buy new battery from DEALEXTREME.com
so its the only way?
Try this.
Charge battery to full. Leave plugged in, Turn off fastboot in power settings and shut phone off. Light will turn orange again and let it charge til green. Boot into recovery and wipe battery stats. After this let the battery drain as low as 10% before recharging to full without unplugging. Do this a few times over a few days. If you don't get more accurate percentages after this then the battery could be messed up.
Gizmoe said:
Try this.
Charge battery to full. Leave plugged in, Turn off fastboot in power settings and shut phone off. Light will turn orange again and let it charge til green. Boot into recovery and wipe battery stats. After this let the battery drain as low as 10% before recharging to full without unplugging. Do this a few times over a few days. If you don't get more accurate percentages after this then the battery could be messed up.
Click to expand...
Click to collapse
thx i will try.
i have the exact same issue. i have done battery stat wipe..flashed multiple roms over and over with full wipe and all that. battery charges up to 80% then the LED turns green..and stays that way till it reaches 100%. it jumps from 80% to 100% in just a few minutes.
battery jump
I wouldn't worry Lendlord mine does the same (see attached pic) you can see the green line jumps up from 80 to 100 but doesn't jump down from 100 to 80 under use. The picture is taken from Battery monitor widget, it's a great app which shows mv, ma, % and temp and even keeps a text log of what ma drain there has been allowing you to monitor battery drain while you're using your phone or while it is sleeping.
Here's a great guide aswell of how to ensure best battery life by memnoc:
forum.xda-developers.com/showthread.php?t=1226016
so thats mean that some battaries have the same issue=( And there is no solution for it...
HTC failed again...
first GPS and now the battery. Bad, very bad!
And one more request.
Can someone post your current widget log?
LendLord said:
so thats mean that some battaries have the same issue=( And there is no solution for it...
HTC failed again...
first GPS and now the battery. Bad, very bad!
And one more request.
Can someone post your current widget log?
Click to expand...
Click to collapse
I have the same thing happen to mine, i think its because you've let your DHD die due to low battery levels and that damages the battery which i think causes this problem
..letting the phone shut off because of a completely discharged battery is NOT good for the lifetime of Li-ION batteries.
The battery could be hurt and the amount of mAh the battery is able to store might be lower after.
Also trying to 'pump' the battery to fully charge by connecting / disconnecting while the phone is down is not a good advice because li-ion batteries also don't like overcharging.
To be sure that the battery is fully charged due to its ability it is sufficient to let the phone be conectet to charger or usb overnight.
Android uses the voltage of the battery to estimate (!) the % charge value.
Android supposes the battery is fully charged when it enters the voltage of about 4.2 Volt which is the charging cut-off voltage for li-ion cells.
Now when charging again the conceded voltage is reached more quickly than estimated by android, so the system is 'surprised' of this rapid charge and changes the % value to 100% because the conceded voltage is reached more quicklyy as supposed.
(Try to fill a 0.5ltr beer bottle into a 0.33 glass)
This is the normal of aging for li-ion batteries.
Consider for yourself if it's acceptable for you or if you should by a new battery.
by the way... be careful with cheap china batteries for 10$.
Offers with exaggerated values (up to 1600mAh) will mostly keep their promises
only for the first two or three charges only and will than fall back to 800 mAh or even less !
Greetz
Pudel
Yeah...
My battery started to do the same thing for a week or two. It will charge to 86% then it jumps to 100%, saying it's charged.
This is normal afaik, nothing to worry about.
Sent from my Desire HD using xda premium
solve
actually，it's the problem of your rom , in the framwork.apk . unzip it you will get a lot of battery icon form 1%to 100% in the res file ，if it made mistake，that 'your problem. you can go to uot kitchen to coustom it again.
Nope!
I've solved my problem. I've bought a new (original) htc battery, and the new one works great. I haven't reflashed the rom, or made any new modification. Just added the new battery.
So, yes, it's a faulty battery.
LendLord said:
Hi, sry for my english=(
When i charge my battery its normally charge to 80% and then becomes 100%.
Try calibrate battery but this doesnt help. Also try another roms and kernels.
Is it a battery issue?
Click to expand...
Click to collapse
Download Current widget from market and charge ur phone then wait for the 0 ma then download the battery calibration app from market too and calibrate and unplug ur phone, u can aslo reboot to recovery and wipe battery stats hope it helped you
Whenver i flash a new rom, i make it a point to use BatteryCaliberation from Market.
Though since the last couple of times, I have noticed a weird thing.
Whenever i let the battery charge, it stays on a particular % for too long,
in my case (most of the times), its 60% or 72%. And then directly jumps to 100%. (this 100% is confirmed by the mV in BatteryCaliberation.
And while discharging, it goes to 0%. Then when i remove the battery and power on, it shows 2% (Although one time , it went to 20% )
Is my battery broken and should i replace it? (It has been giving me crappy battery life too)
i've got this, always charges up to 70-80% and stays there for a while, then jumps to 100%, changing roms, calibrating battery doesn't fix it.
Always wondered why it happened, I assume it's to do with the battery but not sure if faulty or not, hopefully someone can shed a bit of light...
First guys The battery calibration has been shown to be pointless and useless. Dont bother doing it. Next if you ever do bring a battery to pure 0% then it will bot boot at all. The issue could be many things. From a bad battery to just the way your device charges. As long as it last a decent amount of time then you may be able to rule out the battery being bad. I wouldnt worry about it unless you see the battery discharging really really fast.
Try to go into recovery and wipe battery stats, and then discharge it to 0 % until it won't turn on and fully charge it 0 ma on current widget. it happened to me many times and this is how i fixed it (old problem on hd2 on android nand)
So, I bought another battery. Will this sort it?
Also, what's the usual procedure?
Should I charge the battery to full in the phone (turned off) then boot, set up, then charge again and reset battery stats?
The problem is that the battery control chip doesn't take into account that the battery ages.
Resetting battery stats or charging while turned off will only clear the stats you see in the settings menu. This guide will make your battery drain to 0% again: http://forum.xda-developers.com/showthread.php?t=1534892
I don't know what a new battery will do though.
I gathered that, but as the phone is going to a new user (my stepson) we got him a new battery anyway
I just wondered what the correct procedure is. I know you need to do a first charge with a new battery, as with a new phone, however, this phone obviously has a working ROM already on it.
So, the phone is charging now, switched off. Should I turn it on, use a little, then use the battery calibration app to delete the stats and then drain to 0%?
Kryten2k35 said:
I know you need to do a first charge with a new battery, as with a new phone
Click to expand...
Click to collapse
Well, that assumption is probably inherited from the NiHM batteries in the past, because it's not needed with Li-Ion batteries. In fact charging to 80% is better than charging to 100% and keeping it plugged in.
You can read more about it here and here.
Kryten2k35 said:
So, the phone is charging now, switched off. Should I turn it on, use a little, then use the battery calibration app to delete the stats and then drain to 0%?
Click to expand...
Click to collapse
Just charge it and use it for a full cycle. If it shuts down at 15%, you can try the battery calibration from the thread I mentioned above. If it doesn't, you're battery capacity is the same as the one the battery chip has calculated, which is good.
So, why does the first charge take so long?
This thing is still charging and it's been on the charger for 3 hours, whereas usually it'd be charged fully by now.
Been like that for every Li-Ion battery I've ever had (including my S3, took around 6 hours to charge, usually takes 3).
EDIT:
Just to clarify, I don't intend on leaving it past the green light. As soon as it says it's full I'll be taking it off charge and not trying ot overcharge it. But I still have the orange charging light after 3-4 hours.
To be honest, I don't know. Maybe it's a safety to prevent overcharging. Coincidentally, I've got exactly the same issue now. I asked about it in the calibration thread. I suppose it's normal, but I'm not sure about that.
Kryten2k35 said:
So, why does the first charge take so long?
This thing is still charging and it's been on the charger for 3 hours, whereas usually it'd be charged fully by now.
Been like that for every Li-Ion battery I've ever had (including my S3, took around 6 hours to charge, usually takes 3).
EDIT:
Just to clarify, I don't intend on leaving it past the green light. As soon as it says it's full I'll be taking it off charge and not trying ot overcharge it. But I still have the orange charging light after 3-4 hours.
Click to expand...
Click to collapse
my battery took just over 6 hours to charge the other day from completly dead
Sent from my HTC Desire