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Smartphone battery.

post #1 of 11
Thread Starter 
Is there any free widget to monitor battery wear level on an Android phone?
The Galaxy S2, specifically.

Also, what are good charging habits to observe?

Many say that you should charge for 8 hours the first time round, but it's a bit BS since the phone knows to run on AC once the battery's done charging, right?

Furthermore, I plug and unplug my phone from my PC's USB quite often in order to transfer files.

How will this affect the battery condition?

Sometimes it has close to 100% battery when I plug it in again, and it automatically starts charging.

This can't be good for it, right?
I don't do it on a daily basis, but it's a bit unnerving to know that the battery's getting charged again when it has yet to even drain.

Some say that these smartphone batteries are designed for such operation, and actually charge better with small burst charges at a time as opposed to a full charge from a low level, say 25%?


EDIT:

Sometimes I momentarily unplug the USB cable from the phone to enable USB data transfer, and then plug it back in right away.
I notice that the battery starts charging again, even though it's already at 100%. Is this harmful?
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post #2 of 11
I'm quite curious about this also. I am not that concerned because you can easily just buy a second battery smile.gif

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post #3 of 11
Thread Starter 
And on the average how much does one cost? I'm interested and concerned, because this seems to be a pretty serious issue.
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post #4 of 11
Quote:
Originally Posted by Volvo;15507200 
And on the average how much does one cost? I'm interested and concerned, because this seems to be a pretty serious issue.

Around 25$ for the Original 1650mAh and 40$ for the Original Extended 2000mAh battery.
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post #5 of 11
There is (or was) an app on the market called CurrentWidget. Even when you reach 100% on your phone, you may not have fully charged the battery. CurrentWidget lets you see when the mA get down to actual zero, the point at which your battery IS fully charged. Sometimes this will be a good time after your phone reports 100%.

Also, there is a battery recalibration app available as well, which can help you to get the most out of your battery. There are even more benefits to using a custom ROM, since these are usually tailored and tweaked for the best performance.
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post #6 of 11
Thread Starter 
Checked it out but sadly it does not work correctly for this phone. Any ideas?

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post #7 of 11
I'll upload the widget im using later today if anyone is interested. I need sleep right now tongue.gif

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post #8 of 11
Thread Starter 
Alright, eagerly awaiting.
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post #9 of 11
There's no harm to your phone from overcharging it. I leave my phone plugged into USB as often as possible because I'm often putting files on it and deleting some.

When your phone reaches 100% charge, it stops taking charge, drains a bit then charges back up to 100% again. The indicator isn't always accurate.

The best way to control your battery is to:
1)under clock the phone when it's not in use
2)turn off data signals when not in use. (wifi, 3G, 4G etc).
3)could try a kernel that lets you undervolt your phone, but this is a bit more extreme.
4)Wipe Battery stats after you let your phone die completely, this'll help battery life too if you seem to be draining fast.
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post #10 of 11
This should work on any phone, even though it is ripped out of my HTC EVO 3D.

http://www.mediafire.com/?5jt9tlgx09uzk56

Is the link to the APK.

Instructions if you need them:

1. Download from phone.

2. Use Astro/ES Explorer/Root Explorer to access the file

3. Navigate to downloads folder

4. Click on apk and install.

walla!

Otherwise I also remember hearing about BatteryLife by Curvefish. You could also try that as it does allow you to add a widget, and I believe it's fairly low on resource as well, so no extra battery drain.
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