Hello everyone,
I'm running some tests to see the battery consumption on my Galaxy S i9000. I'm using the gingerbread version of darkys ROM.
Firstly, what do you think of the battery life? In this specific test I used the phone in a very light way, made some messages/calls and read few mails.
Secondly, is it normal to have depressions in the battery chart that display less battery than it shows later? How is it computed? Isn't just some logic level of the voltage battery?
Lastly, in the case of buying another battery, is it worthless to be genuine?
Thanks a lot
Someone close this thread, I double posted it:
http://forum.xda-developers.com/showthread.php?p=13928515#post13928515
I've tried Battery Monitor Widget and Current Widget which both give similar mA figures to each-other but they are way too high.
After running the figures through an excel spreadsheet to calculate overall consumption from 100% to 0% they give me 3,155 mAH used which is obviously way off the 1520mAH battery capacity.
I've used a similar method with my DHD and that always comes up within 100mAH of the quoted capacity so I'm happy with my methodology.
So firstly I'm warning others not to believe the silly high figures these apps show and also want to ask if anyone's found a more accurate method/app.
Edit: I've attached the spreadsheet.
Columns A-D are taken from CW log, the rest are my formula
Column I is the important one which shows accumulative mAH used according to the log.
The phone was taken off charge at 10:09
stuart0001 said:
I've tried Battery Monitor Widget and Current Widget which both give similar mA figures to each-other but they are way too high.
After running the figures through an excel spreadsheet to calculate overall consumption from 100% to 0% they give me 3,155 mAH used which is obviously way off the 1520mAH battery capacity.
I've used a similar method with my DHD and that always comes up within 100mAH of the quoted capacity so I'm happy with my methodology.
So firstly I'm warning others not to believe the silly high figures these apps show and also want to ask if anyone's found a more accurate method/app.
Edit: I've attached the spreadsheet.
Columns A-D are taken from CW log, the rest are my formula
Column I is the important one which shows accumulative mAH used according to the log.
The phone was taken off charge at 10:09
Click to expand...
Click to collapse
You are correct - no application is reporting correct std by current consumption due to changes made by HTC again!.
Current consumption averages when device is on should however be ok.
Hi there,
I am hoping that there are some "Battery Monitor Widget" (BMW) users with us, and that you would share your values which BMW is detecting.
As far as I understand and can tell the Transformer does not report measured mAh values and BMW does some estimations and calculations by monitoring over a long time.
After a month or so my TF101G showed an estimated capacity of 23614 mAh ... you get it that I am confused. Therefor I am asking you to post your values, eg. with a screenshot of the "Calibration" page of BWM.
As far as I can tell, nobody has posted these values, at least not @XDA. So this would really be interesting, maybe also for 3c (author of BMW).
Greetings,
- Stephen
"Bump"
Really no one willing to share their battery's capacity as reported by Batter Monitor Widget (BMW)?
forcemaker said:
Really no one willing to share their battery's capacity as reported by Batter Monitor Widget (BMW)?
Click to expand...
Click to collapse
Hey man, I'm not much of a pro of this widget, i downloaded it yesterday but may I ask, in your Settings-Monitoring-Battery Capacity(mah), what is written there exactly?
Installed it on my Motorola Defy and it work superbly... But in my TF101, it doesn't seemed to show the details I expected.
The battery capacity, what do you enter here? Is the BMW detect the dock battery?
I'd run it over two days but the data shows doesn't seemed to be right, so uninstalled it..
If you have any proper steps or ways to make it work in TF101.. please write here.
Sent from my Transformer TF101 using XDA Premium HD app
In battery capacity option, you write your battery mah as you know it. I got extended 3500 mah so I wrote 3500 there, measured the mah with the app using the app for a day, it said 4580 mah. Well, there is no way that is right
I'm gonna use the app for some day, see if the measured mah is gonna change.
The app can not read the externals battery, it seems to be totally unaware. It also seems to register any power from the keyboard dock's battery as an external charger.
As the TF101 does not report measured mAh values as other devices do (e.g. my HTC Desire Bravo A8181) it uses estimates from the OS system logs (as far as I understand).
The app's author suggests - at best - a maximum complete discharge/charge cycle for guessing accurate values (maybe it's the other way around: first fully charge, then discharge; or it doesn't matter; but: do no discharge your Li-Ion battery completely as this is known to harm Li-Ion's (e.g. batteryuniversity, dont know their reliability), try at least a charge cycle of 50%)
It took quite some time until my mAh value stabilized at the value of 23614mAh that I got. For about 2 weeks the value was rising and stopped then at 23614mAh.
Yes, as I remember the mAh-value you are asked for at e.g. the first use is an estimation/hypothetical temporary value used for calculations and which will be corrected with the measured/estimated values over time.
The app and it terms are in some cases confusing/unclear without reading the docs which can be found here and are quite enlighting. In general I use this app a lot on my Desire where it measured the battery's capacity with 14xx mAh which is a little more than the expected capacity claimed by HTC (and I treated my battery quite well).
About the capacity of an Asus TF101(G): I left my tablet running under these cirumstances (the first time accidentially, the second time planned):
flight mode on (no 3g, wifi, bluetooth, me telling you just because you can enable the latter two even in flightmode!)
screen set to lowest value
no apps except battery monitor run on purpose (background tasks left untouched)
OS 3.2.1 stock ROM completely untouched (only the OTA which gave me this OS version)
The results of this test:
from 100% battery to 8% battery within 8 hours 20 min
the battery usage screen of Android control panel showed following "distribution" of power:
Screen: 86%
Android OS: 11%
Android System: 3%
no other entries!
My (quick) conclusion of this test is: as Asus promotes this device with about 8 hours of HD video playback (which I expect to be a processor sucking task) on one charge, without keyboard dock, and as other sites with this' tablet reviews report the same, my device underperforms "highly".
(Sorry, I did not start reading the - for sure - existing threads about battery life in this forum, as I "hoped" that a simple comparison of "Battery monitor widget" values would enlighten me. But, for sure I have to dive into these discussions.)
Uploaded images (thumbnails below) may be unreadable and are posted here for your convenience:
http://imgur.com/a/FJ2Xx#2
I read a lot of different battery info on these sites and I wanted to point interested parties to "Battery University" where they cover Lithium Ion batteries in great detail. I picked up this site on one of the forums a long time ago and haven't seen in mentioned in a long time.
If you just want a quick summary on how you should be treating your Infinity's battery go here:
http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table
You can then look over the links in the left column to learn even more about how the batteries work and how best to take care of yours.
Key points I picked up were: (1) Never let your battery run down very low and (2) try to charge your battery with the device off. I think it's hard to charge with it off, especially phones, but it was interesting to learn why.
Hope that helps!
(I am going to post this on the other forum I frequent)
Hi guys,
Is it possible to check the real time (live) battery mAh? Sometime battary percentage bar is quiet confusing especially for ppl who have many phones(not me) because different phone have different size of battery and it is very confusing if the battery is enough for his/her day.
If you not understand what i mean "live/real-time battery mAh", you can refer to the screenshot: tinypic.com/r/2i94bww/9
As shown in the red box, miui default security app accually have the function of tracking how much mAh the battery is, however it is not real-time/live and it will be great if anyone can suggest any app that can do this. If there is no app have this function, maybe this is a suggestion to apps developers.