Light weight app that notifies user at user defined battery levels to either charge the device, or to unplug and stop charging. This helps in observing the 40-80 rule of Li-ion batteries.

Most battery apps on the market only notify when the battery is fully charged, but only a few that notify user at user defined battery levels, and even fewer, if any, that can do so accurately with very little resource. That's why we wrote this app.