Which should be max. battery voltage ?
I have never seen voltage greater than 4.170 mV at 100%, according to Battery Monitor Widget.
My Desire HD instead, reaches 4.201 mV at 100%.
Is this normal ? if not, what should be done ?
iangelo said:
Which should be max. battery voltage ?
I have never seen voltage greater than 4.170 mV at 100%, according to Battery Monitor Widget.
My Desire HD instead, reaches 4.201 mV at 100%.
Is this normal ? if not, what should be done ?
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Click to collapse
Volts are not overly important. It's the mAh that matters. My phone's battery has gone from 3,600mV at 70% to 3,755mV now at 37% (and rose to 3,759 and dropped to 3,756 while I was typing this). My old BlackBerry Torch 9810 used to do the same, my Wildfire S before that. As long as the Elvison battery widget (get it if you don't have it) tells you that your battery is in good health, then you have nothing to worry about.
kylepont said:
Volts are not overly important. It's the mAh that matters. My phone's battery has gone from 3,600mV at 70% to 3,755mV now at 37% (and rose to 3,759 and dropped to 3,756 while I was typing this). My old BlackBerry Torch 9810 used to do the same, my Wildfire S before that. As long as the Elvison battery widget (get it if you don't have it) tells you that your battery is in good health, then you have nothing to worry about.
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Thanks for your answer.
I agree, it' s like this during operation.
My problem is the max. voltage when fully charged, which is low compared to the max. voltage of my Desire HD.
Related
I'm on an EVO 4g (but I don't think this is phone-specific) and according to the battery monitor widget app (and confirmed by touching the back of my phone), my battery gets pretty warm when the % remaining gets lower. In fact, at 2% battery remaining (a little under 3500 mv reading), the battery temp reads over 40 degrees C.
Is this normal or is this a sign I should exercise my warranty and get a new battery?
Oh and yes its a stock battery.
Normal
Sent from my GT-I9000 using XDA App
So I have the HTC 2750 mAh extended battery, with also the Battery Monitor Widget app installed.
When the battery is fully charged, the mAh correctly shows 2750, but the mV varies, from 4100, to 4144, to 4192, to 4064, etc. Why is the mV not consistently the same when fully charged, and does it make a difference if mAh is full at 2750?
Also, when exactly should I clear battery stats? Right after phone is charged (while on), reboot into recovery and clear the stats? Or should I do it after phone is charged while off, then boot into recovery holding the volume button and clear stats? Or should I do it right before it's drained completely?
Thx
http://forum.xda-developers.com/showthread.php?p=15926849#post15926849
Part of the reason, too, is that you're using the device. Voltage will fluctuate depending on the load on the battery. I'm kinda thinking these ulta-accurate battery monitoring apps are drawing way too much attention to how the battery is designed to work and is really confusing a lot of folks. A 100% charge is actually one of the most destructive states a battery can be in. The phone is designed to avoid that state as much as possible by stopping charging as soon as that state is reached. It's nothing to fret about. Minor variations aren't cause for any concern.
As the poster above me stated, the voltage will vary depending on the battery "load" - ie, the size of the equivalent Thevenin resistance of the phone as seen by the source (battery), which drops as you draw more current from the battery. The basic equation is Voltage = Current * Resistance. Fix your resistance, and increase the current - what happens to the voltage as a result?
Gotcha. OK so I won't stress about the mV and unplug once it hits 2750 mAh. Thanks guys!
ece4free said:
As the poster above me stated, the voltage will vary depending on the battery "load" - ie, the size of the equivalent Thevenin resistance of the phone as seen by the source (battery), which drops as you draw more current from the battery. The basic equation is Voltage = Current * Resistance. Fix your resistance, and increase the current - what happens to the voltage as a result?
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Ahhhh Ohm's Law!!!
I've got the anker 1900 but I'm dissatisfied. It lasts as long as the stock 1580 or maybe less...
I dunno whether it's bad luck or not, but something is wrong.
1) In battery widget the reported mAh is 1580, isn't it supposed to be auto detected correctly 1900?
2) I've wiped batterystats, and recharged it fully, but i.e. today the phone lasted only from 10.00 till now. Do I have to give it more recharghing cycles before to judge it?
What do you think?
zooster said:
I've got the anker 1900 but I'm dissatisfied. It lasts as long as the stock 1580 or maybe less...
I dunno whether it's bad luck or not, but something is wrong.
1) In battery widget the reported mAh is 1580, isn't it supposed to be auto detected correctly 1900?
2) I've wiped batterystats, and recharged it fully, but i.e. today the phone lasted only from 10.00 till now. Do I have to give it more recharghing cycles before to judge it?
What do you think?
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Depends on usage, the way I use it - that would be a good amount of capacity.
Did u do 3 full discharge and charge.
Im on my 2nd cycle and my Anker is rockin'..
Sent from my Sensation using Tapatalk 2
Where did you buy it from?
Sent From My Sexy Sensation.
I bought iy on ebay from an irish seller. And I've still not completed 3 full cycles.
But what about the reported mah?
Did you have to set manually the mah as well?
And I'm experiencing strange behavior with the reported left charge. It stayes at 100% long, and then it start lowering the % much faster.
zooster said:
I bought iy on ebay from an irish seller. And I've still not completed 3 full cycles.
But what about the reported mah?
Did you have to set manually the mah as well?
And I'm experiencing strange behavior with the reported left charge. It stayes at 100% long, and then it start lowering the % much faster.
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Click to collapse
Might be a faulty battery perhaps you have warranty ? I bough it from ebay : laptopmate_usa hes legit and gives 1 year warranty ! Mine stays on 100% long time but starts draining fast until 92 then becomes normal..
Sent From My Sexy Sensation.
Battery monitor widget reports 1580mAh and I have to overwrite the data to 1900, does it happen to you too? Il this normal?
With battery monitor widget, if you go in to "Calibration", then hit "Change", you can enter a different capacity. You don't have to name the battery, although you can if you want. Then the stats should change.
*edit*
I have used battery monitor widget in the past, and had to manually change it to 1900. Although I have not used it lately and don't know if it should automatically adjust the calibration.
IHaggardI said:
With battery monitor widget, if you go in to "Calibration", then hit "Change", you can enter a different capacity. You don't have to name the battery, although you can if you want. Then the stats should change.
*edit*
I have used battery monitor widget in the past, and had to manually change it to 1900. Although I have not used it lately and don't know if it should automatically adjust the calibration.
Click to expand...
Click to collapse
I have the anker 1900 too and to quickly see if battery is actually registering as larger than 1500 (ie your battery stats have been adjusted due to calibration or wipe). Charge your sensation to 100% (green light), power down, and if your charging while powered down for my then 5 min or so its still at 1500. (orange light on)
I know it seems obvious but my experience is that my anker battery will always charge full if turned off no matter what rom I'm running.
if the rom isn't reading the battery i'll turn on my sensation and i'll be at 100% charge for a few hours Xp
I am waiting for the OTA update before I root my HOX but I am still trying to calibrate the battery now. I disabled fastboot and I'm running JuiceDefender Ultimate.
When the battery reads at below 5% the voltage is around 3570mV. At 100% I'm reading a voltage of around 4185mV. Is this normal? What sort of min and max voltage readings should I be seeing?
I'm getting approx 12hrs (3:45 hrs screen time) before charging (that's with running Shadow Galaxy live wallpaper, and watching a 2hr movie on MX Video Player)
Thanks in advance.
The phone uses less battery because its turned down or off features such as syncing also with li-poly batteries as they drain their voltages dies down with it. Normally is a Mv in difference. Like with an electric car or RC car when the battery is lower than 5% they too slow down. The amperage pretty much goes out the window.
But for the phone HTC has a pretty insane battery management system, its normal. At 15& the iPhone mv would dropped about a whole volt as well.
Sent from my HTC One X using xda premium
Oh okay cool, thanks!
When I use programs that read battery stats, like GSam or Battery Monitor Widget, both of them says that when my battery is full (100%), the voltage is at 4330-4336 mV, which afaik is too much for a Li-ion battery.
My friend with a Galaxy S4 said that when he was charging his phone (was at 70% at the time), the sensor was reading 4313 mV.
But when he got to 100% it dropped to 4266 mV.
Is my battery really at 4.3V or the android sensor is a little off?
Despite the fact that two times already when my phone was below 50% it shutdown overnight (there's a thread here that many others are having something similar), I don't know if my battery is crazy or just the android.
ar_15 said:
When I use programs that read battery stats, like GSam or Battery Monitor Widget, both of them says that when my battery is full (100%), the voltage is at 4330-4336 mV, which afaik is too much for a Li-ion battery.
My friend with a Galaxy S4 said that when he was charging his phone (was at 70% at the time), the sensor was reading 4313 mV.
But when he got to 100% it dropped to 4266 mV.
Is my battery really at 4.3V or the android sensor is a little off?
Despite the fact that two times already when my phone was below 50% it shutdown overnight (there's a thread here that many others are having something similar), I don't know if my battery is crazy or just the android.
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Click to collapse
mine reads around the same mV when fully charged so think yours is normal,my battery dropped down too 50% or less a couple of times but never actually shut down.
im running back on jellybean now as i prefer it and the battery is perfect but that could be just coincidence.
I have tried asking Motorola customer care for the care . No answer yet from them . Have a similar post here . I think Motorola uses some different kind of battery technology with higher voltages . But yet to recieve any solid reply on the same . Meanwhile I think my battery's peak voltage has gone down from 4.325 to 4.29 and as a result I am experiencing battery drop from 100% to 80% quite rapidly especially with usage .