[HTC One X] brush2:
BatteryWarner is designed specifically for my battery mod [MOD] Battery White Circle, increments 1%, ARHD x & other x.x based ROMs

which indicates remaining battery power from 15-100% exclusively in white color - but of course it should work with any other battery or device with Android v. 4.x.

Since i don't wanted to run into low battery without any visual or audible warning, i created this App to notify about remaining battery

power far earlier than the default low battery notifications.

This is for example important if you plan to use your navigation software on a long trip or wanting to hear music for a long time - without a chance to recharge your battery.

Well - now you can ensure that your battery is recharged to the minimum level you need.

Key Features:

BatteryWarner will notify about remaining battery power on a user configurable percentual range between 15-99%.

[*]You can choose a value from this range in 5% percentage incrementation.

Further you can select a reminder interval (in minutes) to notify when remaining battery power is equal or lower than the selected notification level.

[*]There is an option to adjust a time span you don't want to get warnings, for example at nights...

You can prevent getting warnings during phone calls by selecting the checkbox option "Do not notify during phone calls".

In this case warnings will be interrupted during phone calls.It will resume a few minutes after detecting a finished phone call.

[*]On the checkbox option "Use notification sound (Otherwise vibrate)" you can set if you want to get warned by default notification sound or vibration.

BatteryWarner predicts the estimated recharging time either for your chosen percentual notification level or until fully recharged when plugged.

I implemented an algorithm which calculates the recharging time basing on each particular device, since i noticed the recharging capabilities differing from device to device.

[*]BatteryWarner service does not monitor battery state via ACTION_BATTERY_CHANGED when unplugged, since this would eat up your battery.

BatteryWarner does not require root privilegs.

Screenshots:

Description of the battery bar at the bottom of this App (also check the About/Help in menu within App for more information):

The blue mark indicates the remaining battery power.

The red mark indicates the threshold of the selected percentual notification level. It's only visible if remaining battery power is lower than the selected notification level!

The green mark indicates the procentual range until fully recharged. It's only visible if remaining battery power and selected percentual notification level are lower than 100%!

Updates / Changelog:

Please uninstall v.1.0.3 beta before installing newer versions (Always install the latest version)!

[2013-01-06] BatteryWarner v.1.0.3 beta - [ MD5: 873a9938ff972b623886b953ccf91147 ]

[2013-01-07] BatteryWarner v.1.0.4 beta - [ MD5: 8c68af5081fc1687ffe71607db0dcacf ] - minor fixes in visual layout and calculation of estimated recharging time

[2013-01-09] BatteryWarner v.1.0.5 final - [ MD5: 855205436847d5e8e478fb440bd65d7d ] - fixed calculation of estimated recharging time when plugged/unplugged

[2013-01-12] BatteryWarner v.1.0.6 final - [ MD5: 9825c5ed42351b19d6b72315b6b96357 ] - improved calculation of estimated recharging time when plugging/unplugging
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Please note:

The visual layout was designed for HTC ONE X - so it may happen, that the visual layout does not fit when using other devices.

Please let me know if something is going wrong with BatteryWarner!
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Since I am from Germany it would be nice, if some native speaker helped me to correct this App description here on this thread and the English texts within the App.

You can PM me if you are willing to help me.

Thanks in advance!

Regards, brush2