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I have an issue on my HTC desire as the battery gives me constant values:
- battery voltage: 3923 mV
- battery temperature: 24.3 deg Celsius
- Current:
* either constant to 8mA (after a full charge the current says 8mA for some hours if phone is in standby)
* or constant to 44mA (whatever I do, playing games, browsing, watching movies..., or doing nothing)
Those values can be obtained with the secret menu (*#*#4636#*#*), using the apps "Battery Monitor widget" and CurrentWidget, or from kernel logs (cat /proc/kmsg in terminal emulator).
Apart from that my phone behavior seems to be normal, and the power consumption seems ok.
For some it might not be a big issue but, as I am trying some ROMs and different kernels, I would like to get the real current used (in mA) in order to really test the power consumption.
I did already did some tests to understand where the issue come from:
- full wipe (cache, data, dalvik) to get a clean ROM
- try a different battery (battery reference are both 35H00132-06M)
- change ROM and kernel
but I always get the same values !
That's why I suspect the issue to come from the battery sensor.
Now here come my questions:
1- Did any of you already had such an issue ?
2- Is the Battery Current sensor and Temperature sensor are the same one ?
3- Where are located those sensors ? In the phone or the battery ?
4- Do you think this wrong values could lead to strange phone behavior or damage the battery ?
Thanks for reading this boring post and even more thanks if you have some answers !
If the battery is being used in the same way as another battery then the results will be the same. If your getting 44mA from using your phone then good. Power consumption is low. By turning the screen on and not doing anything, I get to about 120mA. To be honest, this just seems normal, nothing wrong here. Unless I am missing something everything is fine.
My problem is that every returned value is a constant, I don't see any changes in terms of current if my screen is off (even in airplane mode, nothing running) or if I play a game.
I still get the same current, voltage and temperature values. That's why I suspect the sensors not to work.
Now I would like to know where are located those sensors (in battery or in phone) and if this sensor issue could lead to potential problem... I suspect it could damage the battery.
Anyway thanks for your answer, regarding your 120mA with screen on is it a normal value ? how long does you phone lasts on a battery cycle using CM7 ?
Testing the sensor
mmh, my question does not seem to passionate lots of people
I have a new element, I installed the apps called z-DeviceTest and Temperature sensor is said to be not working.
Is there anyone who could try this app on his HTC desire and see if the problem comes from the app or from my phone.
Once again if someone could answer the following questions, it would be quite helpful for me:
Is the Battery Current sensor and Temperature sensor are the same one? and where are located those sensors ? In the phone or the battery ?
problem solved !
I went to the shop where I had bought phone and batteries and I made some tests together with the reseller using Battery Widget Monitor. It has been easy to find out that the issue was coming from the battery.
Actually I was unlucky, I had bought 2 defective batts ! Or at least the battery sensor was defective. The batteries seemed to work fine but because the sensor was broken I think that after some charge-discharge cycles the batteries might have been broken.
So in case you have such a problem, just try another battery.
....
prosciutboy said:
I went to the shop where I had bought phone and batteries and I made some tests together with the reseller using Battery Widget Monitor. It has been easy to find out that the issue was coming from the battery.
Actually I was unlucky, I had bought 2 defective batts ! Or at least the battery sensor was defective. The batteries seemed to work fine but because the sensor was broken I think that after some charge-discharge cycles the batteries might have been broken.
So in case you have such a problem, just try another battery.
Click to expand...
Click to collapse
damn it, it happened to my battery as well.
I have experienced the same problem and reach similar conclusions.
More details are given on my blog 78michel.unblog.fr
Looking more in detail to this battery caracteristics, I am now anxious about one point:
You observed , and I confirm :the temperature is always at the same level.
Looking more deeply at safety IC for LI-Ion battery , it seems that the NTC which normaly gives the temperature of the battery has also a safety component which prevent from extra heating and fire.
If the temperature is constant , may be it is beacause the NTC have been replaced by a resitor. This means that there is no longer any safety system active!!!!!
I am trying to check this point.
I have the same problems as mentioned above. Always constant 3923 V and constant mA drain.
I have bought 3 batteries from different sources all have the same problems
2 batteries have the S/N 35H00132-06M and 1 with S/N 35H00132-01M
The only battery that is working is the one that was shipped with my phone.
htc desire
DirkStorck said:
I have the same problems as mentioned above. Always constant 3923 V and constant mA drain.
I have bought 3 batteries from different sources all have the same problems
2 batteries have the S/N 35H00132-06M and 1 with S/N 35H00132-01M
The only battery that is working is the one that was shipped with my phone.
Click to expand...
Click to collapse
i have the same problem with voltage indicator - 3923 mv even my phone is low on power or fully charged!
strange issue....
someone did find any answers till now?
i'm try'ing to change my rom from cm7 (7201) where i am now to another rom to see if problem persist.
i'll be back with some conclusions...soon!
I'm seeing the same issue with 2 bilitong gold batteries. Despite them claiming to be 1650mAh they test at little more than half that with jumps in the % left reported rather than a smooth reduction The batteries appear to be 'genuine' bilitong batteries as they arrived in the blt packaging and not just a battery with a lable.
They also only charge to 99% and the charge light stays orange when powered on although the charge light goes green when its switched off and charged
I would surmise that these effects are seen from batteries which are trying to hide what they actually are. aka the manufacturers disable, or more likely do not include the protection circuitry which
* reduces the cost of manufacture
* decreases the losses through the battery as there is less control electronics to power/incur resistance losses
* prevent reporting of what the battery state is and is doing hence indicate its true capacity.
this would also explain why some folk say that a battery melted/damaged their phones.
Unfortunatly there are a lot of 3rd party batteries for the Desire who have bugged electronics inside.
I tried several 3rd party batteries before ending up with an original HTC battery, that works fine.
It seems like all those companies just buy the same electronics, assemble it with the cells and case and put their name on it. (polar cells, andida, etc.). They maybe check the values once, and because they seem legit, they think it is ok.
Im afraid those electronics are a big intended fraud, because the output seems made up to not be perceived so easily...
Unfortunatly sellers and manufacturers seem dont really care about their broken products, because most people just buy them and dont check for sensors or dont give a ...
But I do see some serious risk here, as others pointed out before:
if the temperature reported is always 24°C , the device would not switch off loading when the battery starts overheating, like it would normally do. IMHO this could lead to serious damage to the battery, device and surrounding.
If you get one of those batteries, I strongly recommend to get your money back.
UncannyValley said:
Unfortunatly there are a lot of 3rd party batteries for the Desire who have bugged electronics inside.
I tried several 3rd party batteries before ending up with an original HTC battery, that works fine.
It seems like all those companies just buy the same electronics, assemble it with the cells and case and put their name on it. (polar cells, andida, etc.). They maybe check the values once, and because they seem legit, they think it is ok.
Im afraid those electronics are a big intended fraud, because the output seems made up to not be perceived so easily...
Unfortunatly sellers and manufacturers seem dont really care about their broken products, because most people just buy them and dont check for sensors or dont give a ...
But I do see some serious risk here, as others pointed out before:
if the temperature reported is always 24°C , the device would not switch off loading when the battery starts overheating, like it would normally do. IMHO this could lead to serious damage to the battery, device and surrounding.
If you get one of those batteries, I strongly recommend to get your money back.
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Click to collapse
Agree fully, especially regarding the overheating, which also likely means the CE labeling is false or at least unjustified outside of any tested ones.
Temp reported at 24.x even when phone is hot.
Mv always reported at 3923
Claims 1650mAh (or anything from 1500mAh up to 3500mAh in other Chinese batteries) but shows between 2-3 times the power drain of a old original battery (@ about 1100-1200mAh of original 1400mAh) whether under load or in standby if battery power set to 1650 in monitor utility, which means they are probably only about 750mAh real capacity at best under normal load.
I see when searching that shenzhen Himax (presumably not to be confused with Himax tw) seems to make some bilitong brand batteries, but there does appear to be a separate shenzhen bilitong unit/factory in poison province China (shenzhen, Guangdong Province).
Its quite likely the companies are related, and they may well be the sources for many if not most of these crap batteries. Its notable that these 'branded' bilitongs despite their very pretty and professional looking packaging had nothing on them stating a capacity rating, so anything could be claimed.
Pretty packaging wrapping a turd..
Happy to revoke this view if I am given any verifiable evidence (preferably me testing) to do so.
Just testing a bxt (baixt) claimed 1600mAh blue coloured battery which seems OK at least. (NOTE - not the gold coloured bxt with ridiculous 2450mAh claims).
Voltage seems to be reported OK although temp is wildly inaccurate in the one I have.
Seems to be testing roughly 1000-1200mAh with low standbye drain
So seems very OK at the price
Note this is testing on my backup zte blade/san fransisco where the standard batteries are lower capacity than on the HTC desire:
(1250 vs 1400)
Hi,
On my One-X battery meter is completely inaccurate. Sometimes it sits for hours on one value (e.g. 90%) and then suddenly drops (with no CPU/data activity whatsoever) to for example 80%. This results with very jerky battery use graph (attached mine). I am on 1.29.401.7 and done multiple full discharge/charge cycles, but it does not make any difference.
I have never seen such bad battery meter behavior on any other Andoid phone. Have you got similar problem?
I have the exact same problem actually.
Same here. It's as if it doesn't update the battery meter when it's in sleep (fifth core running). I suspect it's because of the T3 architecture and power management. As soon as you wake it, after maybe a minute, it updates the battery status...
Mines does it. Can sit on a %age for an age then with little use it will plummet.
@Op,
No I didn't notice such a problem on a unrooted One X and with no modifications running the latest OTA update 1.29.401.11.
Did you play with battery apps or did you modify something yourself which could cause this issue? Did you investigate what could cause it?
How long do you have your device, did you install apps? Can you provide more info about it maybe? Do you softreset your device?
Did the problem exist when you bought the device?
Thanks.
So it must be general problem then. It happens to me not only in sleep mode, but when browsing the web, etc.
I think these sudden percentage jumps and meter inaccuracy also contribute to all these battery life complains from various people. I was personally shocked when after a few minutes of web browsing battery dropped instantly from 30 to 20%. It looks like crappy battery, but in fact seems to be just dodgy meter...
Laurentius26 said:
@Op,
No I didn't notice such a problem on a unrooted One X and with no modifications running the latest OTA update 1.29.401.11.
Did you play with battery apps or did you modify something yourself which could cause this issue? Did you investigate what could cause it?
How long do you have your device, did you install apps? Can you provide more info about it maybe? Do you softreset your device?
Did the problem exist when you bought the device?
Click to expand...
Click to collapse
I have got the phone for almost a week now and I am pretty sure this problem has been there from the very begining. I initially though this is because a couple of full charge / discharge cycles are required to calibrate the meter, but it did not make any difference. My phone is not unlocked, no mods or battery apps. I did not try soft reset though.
It looks to me that meter is somehow not updating during the sleep. When device wakes from sleep, after a couple of minutes value drops significantly. This problem is probably a reason for various false claims that One X does not consume a single percent of battery during the overnight sleep.
Yeah, i have the same thing. Sometimes my battery drops about 2 or 3 percent at once, sometimes 10 percent...pretty annoying.
Thanks for your reply.
I'm new to Android but I do have some Windows Mobile experience.
It's weird to me seeing people having such problems because I realy don't experience it.
My battery meter is constant, also after a night sleep.
Maybe it's because I use my device different as others I don't know, it's strange to see all these reports in XDA forum as the One X to my opinion is a very cool device.
Maybe you could try some battery percentage apps and see if it realy is that insufficient?
aszu said:
I have got the phone for almost a week now and I am pretty sure this problem has been there from the very begining. I initially though this is because a couple of full charge / discharge cycles are required to calibrate the meter, but it did not make any difference. My phone is not unlocked, no mods or battery apps. I did not try soft reset though.
It looks to me that meter is somehow not updating during the sleep. When device wakes from sleep, after a couple of minutes value drops significantly. This problem is probably a reason for various false claims that One X does not consume a single percent of battery during the overnight sleep.
Click to expand...
Click to collapse
No problems with the battery monitor whatsoever (unrooted) 1.28.161.9
Laurentius26 said:
Thanks for your reply.
I'm new to Android but I do have some Windows Mobile experience.
It's weird to me seeing people having such problems because I realy don't experience it.
My battery meter is constant, also after a night sleep.
Maybe it's because I use my device different as others I don't know, it's strange to see all these reports in XDA forum as the One X to my opinion is a very cool device.
Maybe you could try some battery percentage apps and see if it realy is that insufficient?
Click to expand...
Click to collapse
I used your excellent ROMs on my HD2 in dark WM6.5 ages . I am glad to see you here with One X!
I installed Battery Meter Widget and (if the readings are correct), my One X consumes about 10-15mA during the sleep with Wifi and 3G on. I will keep an eye on the percentage.
Don't get me wrong - besides of erratic GPS and dodgy battery/power management problems, I really love this device.
I really wished that international One X version was based on S4 SoC (superb GPS with GLONASS and great power management as S4 is a 28nm chip). It is such a shame that dodgy Tegra 3 ruins this excellent device...
Hello, maybe this behaviour is only due to the voltage sampling/display ...
Someone here says the native battery app was only at 5% precision at display
and it looks like it updates in long time samples too ( 5 minutes ? ) ...
Knowing that Li-Ion goes from 3600 mV ( 0% ) to 4200 mV ( 100% ),
it means 600 mV of voltage variation from empty to full, with 1 mV precision.
So 1 millivolt is 0.2% of battery charge.
The display should be really more precise if all voltage precision was used.
aszu said:
Hi,
and then suddenly drops (with no CPU/data activity whatsoever)
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Click to collapse
looking at that screenshot you have posted the sudden drops appear to be perfectly aligned to the 'screen on' or 'awake' periods so the most likely (and obvious) cause is that using the phone causes most battery use. I have seen this with many phones, I think its normal. Being in standby doesnt use much power at all but lighting the massive 4.7" screen and running a quad core processor does, so when you use the phone it uses loads more juice... thats my analysis anyway
f_padia said:
looking at that screenshot you have posted the sudden drops appear to be perfectly aligned to the 'screen on' or 'awake' periods so the most likely (and obvious) cause is that using the phone causes most battery use. I have seen this with many phones, I think its normal. Being in standby doesnt use much power at all but lighting the massive 4.7" screen and running a quad core processor does, so when you use the phone it uses loads more juice... thats my analysis anyway
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Click to collapse
No, this is different. Drop in fact seem to be related to wake up from deep sleep, but the point is that this drop is massive and instant i.e. battery instantly drops from 30 to 20, bypassing all other percent states in between. Also, I am sure battery state does not update properly in deep sleep in many cases. At some point I left my phone for almost a day alone (wifi, 3g, Gmail and exchange sync, etc) and it did not lose a single percent, but as soon as started using it I observed instant 20% drop.
Same problem here even after hard reset
Sent from my HTC One X using XDA
d33f said:
Same problem here even after hard reset
Sent from my HTC One X using XDA
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Click to collapse
+1
And I have even worse problem, can anyone help me?
Take a look at my thread (not highjacking yours, just want some help too), my current widget never reads a real value AFAIK.
It stay with -850 for more than an hour at times...
And my battery life is dismal...
So this means that seeing no battery discharge throughout the night in sleep mode isn't due to excellent power saving feature of the companion core but is in fact poor battery meter?
And yes, my One X shows fast and huge discharge (3-5% at once) when I use after being in long sleep mode
samuelong87 said:
So this means that seeing no battery discharge throughout the night in sleep mode isn't due to excellent power saving feature of the companion core but is in fact poor battery meter?
And yes, my One X shows fast and huge discharge (3-5% at once) when I use after being in long sleep mode
Click to expand...
Click to collapse
I think it too. Phone on sleep with data and sync on for 1 or 2 hours and % don't change. Use it for 2 min. and it suddently goes down by 5/10%
In my opinion the battery meter lacks of accuracy. This brings to inaccurate real time current calculations and wrong information about what's consuming power when we use it. That's bad!
I'm also seeing these big drops. For me it seems to happen between 100%-60% battery, battery level will drop anything from 5%-10% chunks at a time. After 60%, it does seem to be more stable and drop in 1-2% increments.
I've recalibrated the battery through CWM a couple of times but still get this issue.
It almost seems like there's a bug in the code that is causing the fuel gauge to not update.
I can tell you this, I modified other HTC phones battery driver. The nexus one driver for example updates volt, percent, temp, every 50 seconds while the screen is on. When off the sample poll changes to 10 minutes per update. This is real easy to see in the driver code, and you can filter dmesg log for "batt" and see the time stamps do in fact match this.
But the one x looks to be getting hung up on that part. Anyone know if kernel code has been released yet?
I know the GNex doesn't have the best reputation with its battery, but in the past couple of weeks, my phone's battery has been behaving very very strangely, and the problem is very intermittent.
Basically, I am seeing some odd battery drain issues, but there are a number of reported sources from looking at the battery information on the phone. Some behaviors that I have experienced:
1. Screen using 43% of battery with 22 minutes of screen on time.
2. Screen using battery when off.
3. Battery discharging down to almost 0 within an hour after unplugging it from being charged to full - no single app / resource reporting huge usage numbers, just a complete drop on the battery chart.
Other things I have observed; if I catch the system in a state where the battery is draining faster than it should, if I reboot, the system will often recover to normal usage.
I am currently using Paranoid Android 3.15 (I know they have updates - but they also broke their own PIE color scheme, apparently intentionally so, so I am sticking with the last known good version). I am using the stock kernel, and have not tried flashing a new one - if anybody has recommendations, I am all ears.
It is also possible that since this is the original stock battery that the battery itself may be going bad, but my observation about the problem tending to go away after a reboot makes me think the issue is not in the battery itself. I guess the ultimate question is, is there anything that can be done here? Or am I stuck with this until I replace the device in 6 months?
After fixing all other wake locks, my largest sources of battery drain are:
- Android OS
- Android System
- Tablet Idle
Does anyone know how to make these take less battery? I currently only lose ~0.5% an hour, but I'm wondering if there's anything else I can do to reduce idle battery usage. Android OS is the biggest offender (I think that's related to the kernel???).
That's already very low. I don't think you'll get it much lower. Sure, you can always tweak things like underclocking/undervolting and governors, but how much more blood are you going to squeeze out of that stone?
You realize at that drain rate (idle only) it would theorically take more than 8 days to drain the whole battery?
Hello and good day! I've owned and enjoyed my S20+ for a couple years. I recently experienced faster battery drain and in hopes of correction, I upgraded to Android 12 and upgraded the battery to after market 5120mAh battery but device battery life remains close to the same. Two questions to the wise and all knowing XDA forum: 1) Is there a method or tool available to show true battery capacity (mine still shows @ 4370 mAh) and 2) is ultra power save or a similar tool available to place the device and all activity except select apps into deep sleep while screen is off? P.S. My device is rooted and also using Tasker to control device functions. Thanks. Danny.
Replace the battery before it fails potentially damaging or destroying the phone.
Any battery swelling is a failure.
Erratic fast charging is a symptom of a failure as well.
When a Li battery reaches 80%* of its initial capacity it is considered degraded. It has reached the end of it's useful service life.
Degraded Li's are more likely to fail. Battery replacement is part of routine maintenance.
I get about 1.5 years or less out of my heavily used N10+'s battery.
Your SOT gives a good indication of capacity. At 3 years it's likely time to replace it.
blackhawk said:
Replace the battery before it fails potentially damaging or destroying the phone.
Any battery swelling is a failure.
Erratic fast charging is a symptom of a failure as well.
When a Li battery reaches 80%* of its initial capacity it is considered degraded. It has reached the end of it's useful service life.
Degraded Li's are more likely to fail. Battery replacement is part of routine maintenance.
I get about 1.5 years or less out of my heavily used N10+'s battery.
Your SOT gives a good indication of capacity. At 3 years it's likely time to replace it.
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Click to collapse
Hello. Got it. Sharing and recommendations appreciated. Thanks. Danny.