Anyone else getting huge changes in battery percentage?
I was running my phone with seemingly low battery use earlier today. Then it randomly rebooted and I was at like 14% battery. Used my phone till it was at 1% and died. Now I just plugged it in, and after about 20 minutes I have a green LED and it says I am 90% charged! What the hell?
Running CM9 Mar 27 build 2, 3.32 firmware.
seems to me like your battery isnt calibrated properly
Its happened to me many times, due to flashing roms. I was on 2% for almost a day lol
Drain the battery till its completely dead... Switch it on just to make sure it wont power on...
Then charge to 100% no pauses... Then delete battery stats.
azzledazzle said:
seems to me like your battery isnt calibrated properly
Its happened to me many times, due to flashing roms. I was on 2% for almost a day lol
Drain the battery till its completely dead... Switch it on just to make sure it wont power on...
Then charge to 100% no pauses... Then delete battery stats.
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Click to collapse
I heard that this battery calibration thing was a myth proven wrong by HTC or something?
Related
Well Im not saying the battery life itself is bad, but well for example, I just drained the battery completely (phone shut down by itself) and within about 2 minutes of putting the charger back in the indicator read 70%.
Im currently using the method where i run it down to 1% then fully charge, rinse and repeat. (Just started doing this)
Just thought I would share
sambaman009 said:
Well Im not saying the battery life itself is bad, but well for example, I just drained the battery completely (phone shut down by itself) and within about 2 minutes of putting the charger back in the indicator read 70%.
Im currently using the method where i run it down to 1% then fully charge, rinse and repeat. (Just started doing this)
Just thought I would share
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Click to collapse
no problems here, but apparently half the people in the battery threads have issues with battery life.
hmmm, well I just want to get this right because it gets annoying when it says 100% battery then goes down in about 20 minutes
I've had issues with battery life indication on my Omnia 7.
I can have it showing 70%, then it would suddenly drop to showing around 10%. Then by turning off and on several times it will sort itself out and show the correct amount.
This has only happened once or twice mind...
No problem here on my HTC 7 pro. Though I did calibrate one battery and not the spare, both perform the same.
I have no problems either on my omnia 7
follow this::
http://forum.xda-developers.com/showthread.php?p=15338429#
No issues on my Focus. Maybe this is a device specific issue?
sambaman009 said:
Well Im not saying the battery life itself is bad, but well for example, I just drained the battery completely (phone shut down by itself) and within about 2 minutes of putting the charger back in the indicator read 70%.
Im currently using the method where i run it down to 1% then fully charge, rinse and repeat. (Just started doing this)
Just thought I would share
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Click to collapse
No problem with my trophy but a good practice to keep you battery in shape is to start charge at 15-20% (dont leave it until is dead is bad for the battery) and dont charge it to 100% ...stop charging at 90-95% ...
That is what i do with all my mobile devices and rarely i have probs with my batterys.
This happened twice today..
For e.g: If my battery is showing 15% and then i restart my phone it suddenly shows 50% remaining..
Am using Battery Indicator to show me in % how much is remaining (though even the htc battery shows the difference in this case)
Any idea why is this happening and how to solve this??
Oh and how to stop the: Show Me app?? Keeps restarting and sucking my battery..
Could someone please help me out here with this weird problem??
It keeps happening everytime i restart my Sensation..
Try wiping your battery stats from CWM.Then charge battery fully>drain fully>then charge again it should be calibrated. oh and use startup cleaner in the market.
arturohernandez said:
Try wiping your battery stats from CWM.Then charge battery fully>drain fully>then charge again it should be calibrated. oh and use startup cleaner in the market.
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Click to collapse
Its a 1 day old Sensation.. Havent rooted it yet..
I saw the same with my mine. I allowed the battery to drain until the phone shut off and recharged over night to 100%. I did that for a few cycles and mine seems fine now.
The battery % indicators only show what the phone software *thinks* it currently is.
The Sensation battery ranges from approx 4200mV (full) to 3000mV (empty).
The problem is sometimes the phone thinks those numbers are different. E.g. when you turn on your phone for the very first time, or flash a new ROM, if your battery was half full at 3700mV the phone would then think that was the 100% level (why they say charge a battery fully for a long time before turning your phone on for the first time).
This leads to various funnies such as a battery seemingly staying full for ages (the phone thinks 100% is much less than 4200mV so until you drop to the phones level your battery %age doesn't go down), and seemingly rapid drains where you end up with less than 10% left - but probably find in reality if you left it your battery would go on for ages at 0%.
Over time it learns, but best to wipe your stats after a long charge so it knows that 4200mV is 100%, and then don't charge your phone again until it physically runs out of juice so it knows what is 0%.
Another useful tip is to install the free BatteryLife widget from CurveFish from the market. That shows you the current voltage level as well as %age, so armed with the knowledge that full = approx 4200mV and empty = approx 3000mV you get an exact idea of how much you have left.
Mine does the same thing even draining/charging for few cycles
Sent from my HTC Sensation Z710e using XDA App
chrisw99 said:
The battery % indicators only show what the phone software *thinks* it currently is.
The Sensation battery ranges from approx 4200mV (full) to 3000mV (empty).
The problem is sometimes the phone thinks those numbers are different. E.g. when you turn on your phone for the very first time, or flash a new ROM, if your battery was half full at 3700mV the phone would then think that was the 100% level (why they say charge a battery fully for a long time before turning your phone on for the first time).
This leads to various funnies such as a battery seemingly staying full for ages (the phone thinks 100% is much less than 4200mV so until you drop to the phones level your battery %age doesn't go down), and seemingly rapid drains where you end up with less than 10% left - but probably find in reality if you left it your battery would go on for ages at 0%.
Over time it learns, but best to wipe your stats after a long charge so it knows that 4200mV is 100%, and then don't charge your phone again until it physically runs out of juice so it knows what is 0%.
Another useful tip is to install the free BatteryLife widget from CurveFish from the market. That shows you the current voltage level as well as %age, so armed with the knowledge that full = approx 4200mV and empty = approx 3000mV you get an exact idea of how much you have left.
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Yeah... I went to sleep with 100% charged and when i woke up it was yet 100% charged.. And when i check the battery stats it shows 0s but i was asleep for 8 hours.. Any way to solve this on an unrooted phone?
I had the same problem today too! Thought my battery was kicking ass...turns out it was 18% when I restarted my phone
sent from my s-off sensation!
byrdman164 said:
I had the same problem today too! Thought my battery was kicking ass...turns out it was 18% when I restarted my phone
sent from my s-off sensation!
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What did you do about it?
Anyone know what to do about this to an unrooted phone??
Or is this a defective piece and i should get a replacement??
Mines has done the same but I haven't had the chance to calibrate it yet to know if that'll help. It has helped on previous phones. I don't think your device is defective though.
Aspeds2989 said:
Mines has done the same but I haven't had the chance to calibrate it yet to know if that'll help. It has helped on previous phones. I don't think your device is defective though.
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How do you calibrate an unrooted device??
I think it calibrates itself after a few charge/discharge cycles. Always charge it a lot longer than when the green light comes on (because if the phone thinks the 100% level is a lot lower than it should be, that green light may come on early), and for the first couple of charges let it dry out rather than topping up.
And install that BatteryLife widget from CurveFish, then you can look at the voltage. 4200mV = full, 3000mv = empty, regardless of what your battery %age says. Mine currently says 51% and 3753mV.
Having the same problem here, restarted my phone afew times now and the battery % keeps going up, then dropping rapidly! :s
Sent from my HTC Sensation Z710e using XDA Premium App
Last night I left the house with about 40% left on my battery. By the time I went home, my Sensation was completely drained. This was within 3 hours, which should not drain it to 0%, especially since it was asleep most of the time.
When I got home and I plugged it in, I booted it up and surprisingly, it booted up with 42%. Before plugging in it had no power left, and the phone wouldn't boot at all. I wiped my battery stats yesterday morning too, after charging it to 100% for a few hours.
Seems like my battery stats are VERY wrong right now, and I just wiped it again after charging it to 100% and leaving it there for a while. Does anyone else have this problem? I know some people are having random stats popping up here and there, but this still had 30% juice left before it just died out. Never happened before. I was able to nearly fully drain it just 3 days ago too (100-5%).
Charge to full, wipe again, and drain to about 5%. Charge full and repeat. It usually takes a few cycles to correct battery stats.
Sdobron said:
Charge to full, wipe again, and drain to about 5%. Charge full and repeat. It usually takes a few cycles to correct battery stats.
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I'd also recommend this application from the market for battery calibration, although you need root.
ben_pyett said:
I'd also recommend this application from the market for battery calibration, although you need root.
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Click to collapse
Alright, thanks, I'll try that. Hopefully it gives me an accurate reading
Has anyone realized this or is it just me, every sense 3.5 that I've tried the battery indicator is incorrect.
For example, I just had 41% battery life before resetting my phone and now I have only 4%. Is it not charging the battery correctly? I also turn the phone off after it says 100% and then charge until the green led comes on but still it is either draining too fast and phone doesn't detect it until a reset or the battery isn't be charged completely because the rom thinks it's 100. I have caliibrated and erased the batterystats.bin file so many times and it's still the same. any insight on this? I have a brand new battery from htc as well.
Same problem
Constantly "calibrating" or deleting the battery stats is the exact reason this happens. You dont have to do that, regardless of what people say.
This will happen until the battery has been charged/discharged a few times and will slowly stop happening.
No issue here, got my new anker battery.. Flashed BP 2.1.5 and since then, my battery has been normal and amazing!
the_scotsman said:
Constantly "calibrating" or deleting the battery stats is the exact reason this happens. You dont have to do that, regardless of what people say.
This will happen until the battery has been charged/discharged a few times and will slowly stop happening.
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Click to collapse
This. When I flash ROMs I don't really do anything in relation to the battery. I just use my phone like normal. The first day or two you might get a little more drain than usual, but after that it will be completely normal and you don't have to do anything like wipe battery stats or calibrate or run it down to 5% and charge it all the way up or whatever.
Yes, constantly resetting battery stats is bad. Should only occur right after flashing the new ROM. Ideally you'll have charged your phone to 100%, flashed the new ROM, and immediately putting it through 5 discharge/charge cycles.
My battery life was horrendous when I didn't properly calibrate the battery. Going through the process now and its lasting a significantly longer time compared to not going through the process. I'm talking about getting like 6 hours of light usage compared to like 15.
Or it could be just ARHD. I really didn't like that ROM. Anyways, I'm running Bulletproof 2.1.5 with 3.5 Sense on an Anker battery and its doing great.
Sent from my HTC Sensation
nrvnqsrxk said:
I'm gonna have to disagree with you on that. My battery life was horrendous when I didn't properly calibrate the battery by going through at least 3 full discharge and charge cycles. Going through the process now and its lasting a significantly longer time compared to not going through the process. I'm talking about getting like 6 hours of light usage compared to like 15.
Sent from my HTC Sensation
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+ 1 my battery was shocking, im on my second full cycle currently at 2% lol and already i've noticed improvements by like 20%
Sent from my CM7 Sensation XE using xda premium
I've done everything, calibrated the battery numerous times with and without wiping the batterystats.bin and it's still acting up. Say this morning I wake up, take the phone off charge at 100%, go out, and restart the phone for any reason when the phone's battery meter is at 95%, after the restart the meter will jump down to 70%.
This is with a new battery, new rom, totally wiped device, I even used the ruu to get me back to the stock rom.
Anyone have any idea what's the problem? The battery life is ****, and doesn't seem to get any better with calibration.
xdviper said:
I've done everything, calibrated the battery numerous times with and without wiping the batterystats.bin and it's still acting up. Say this morning I wake up, take the phone off charge at 100%, go out, and restart the phone for any reason when the phone's battery meter is at 95%, after the restart the meter will jump down to 70%.
This is with a new battery, new rom, totally wiped device, I even used the ruu to get me back to the stock rom.
Anyone have any idea what's the problem? The battery life is ****, and doesn't seem to get any better with calibration.
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Click to collapse
This is your culprit. Let it bed in a few days, and performance should stabilize.
Go through 5 full charges/discharges, uninterrupted. Yes, it's a pain in the ass, but you signed up for it when you flashed a new ROM.
Everytime you wipe your battery stats, you have to go through the 5 cycle process again. Uninterrupted.
EDIT: Had a lil too much rum and misspelled a few words. I even misspelled mispelled
Alright dude, I'm going to take you up on your word, I'll give you another update within 5 days.
This is a problem with all Sensation ROMs, even with S-On and Stock ROMs. I get a problem like this one too. If I have 60% left, and I restart the phone, it goes up to 69% and I don't know why. Also very slow charging from the original wall charger, but if I reboot when it's charging at 70-75%, when it finally boots, it says 100% charge. This must be some bug from HTC or something. :S
Hi,
Same problem (with Sense 3.0/Sence 3.5 and different ROM),but is there a fix for that?
I saw this:
Batt Jumping hopefully solved (Beta) = Done
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The thread: http://forum.xda-developers.com/showthread.php?t=1287129 .
Probably a way to fix the issue?
Should be asked about this in the ROM thread?
Me too same bug since first day, I think it's a battery sensor fault
It's not a hardware fault...it's not a battery fault...it *may* be a ROM/kernel issue...but I suggest you give your battery a few discharge/charge cycles and you'll see it should go back to normal.
Hi all,
There's this problem with my phone that everytime I charge it, it takes an elongated time to do so. This issue first emerged when I was on stock GB after a minor OTA update which added the power saver toggle to the quick settings menu..The problem is that it takes about 4-5 hours to fully charge the phone, and if I rebooted in the middle of charging when it's about 70% or 80%, it suddenly shows that the phone is fully charged, and the indicator becomes green! But afterwards the battery drains as quickly!
Now I have S-Off and using ARHD 6.6.3 ROM, but it seems the problem persists ..I wiped battery stats as soon as I flashed the ROM as well..Although it's not a problem I cannot live with, it's annoying enough when it happens.
Can someone please help me? And suggest me what to do?
Prabash said:
Hi all,
There's this problem with my phone that everytime I charge it, it takes an elongated time to do so. This issue first emerged when I was on stock GB after a minor OTA update which added the power saver toggle to the quick settings menu..The problem is that it takes about 4-5 hours to fully charge the phone, and if I rebooted in the middle of charging when it's about 70% or 80%, it suddenly shows that the phone is fully charged, and the indicator becomes green! But afterwards the battery drains as quickly!
Now I have S-Off and using ARHD 6.6.3 ROM, but it seems the problem persists ..I wiped battery stats as soon as I flashed the ROM as well..Although it's not a problem I cannot live with, it's annoying enough when it happens.
Can someone please help me? And suggest me what to do?
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Click to collapse
its common thing...the battery calibration is not proper that's all...
also you need to wipe stats once you charge your phone to 100%
then battery will try to calibrate ...and after 3-4 full complete cycles (100-0 and 0-100)
the battery will settle..
the battery drain will be there ...whenever you flash a rom or flash a kernel....battery only settles atleast after 2 full cycles
EDIT: also download currentwidget from market..as the name says its a widget..so you will see it in widgets once you installed it...this will give you more proper reading of battery...when you plug your phone to charge...and when current widget reads 0mah then your battery is charged completely...(it might take a long time to read 0mah...but charge it until you see 0mah)..then wipe the battery stats...so after this battery calibration will be proper
Also the sudden jump of battery percentage is due to improper battery calibration
so dont worry you got no problem
So
I read somewhere that you are not supposed to let the phone go to zero because it could cause your phone to not power back on anymore..is this fact. I couldn't find where I read it to back and read again. Mine has been doing some weird things as well...the led turns green before it is 100% and it goes from 100% and drops to like 89% out of no where.
toreone said:
I read somewhere that you are not supposed to let the phone go to zero because it could cause your phone to not power back on anymore..is this fact. I couldn't find where I read it to back and read again. Mine has been doing some weird things as well...the led turns green before it is 100% and it goes from 100% and drops to like 89% out of no where.
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Click to collapse
when i meant 100%-0% means until your phone turns off due to less power..it might not(or won't be) be 0% then
as i told you that kind of jumps are common ...in my case it went to 60% to 100% when i rebooted ...also the dropping used to be in large scale too
ganeshp said:
its common thing...the battery calibration is not proper that's all...
also you need to wipe stats once you charge your phone to 100%
then battery will try to calibrate ...and after 3-4 full complete cycles (100-0 and 0-100)
the battery will settle..
the battery drain will be there ...whenever you flash a rom or flash a kernel....battery only settles atleast after 2 full cycles
Click to expand...
Click to collapse
Thanks mate! I will try this out! cheers!