Here it is guys its a signed apk so you can install with or without root I believe.
here's the link to the dropbox download
https://www.dropbox.com/s/pyrsv9hq61fd8kz/batterylife-signed[1].apk?m
here's the link to the dropbox download
https://www.dropbox.com/s/pyrsv9hq61fd8kz/batterylife-signed[1].apk?m