Low Battery ? Download this Solar battery app now and get the animation of battery charging to prank your friends and have fun. Enjoy this 2018 best prank app with friends and relatives by showing them the animation of solar battery charging from 7AM to 6PM. From 6Pm to 7Am the animation will not begun and result will be displayed as No sun light found. Do rate this app and leave your comments. Share this app with friends and relatives.