FEATURES * The Best Utility tool for monitoring your lithium battery. * Realtime check PACK, privacy information, and the working status. * The phone required bluetooth4.0 or Above. *Tracking Cycle Life on each battery. *Displays State Of Charge (SOC) percentage with graphics. *Display total voltage, each cell voltage, charging or discharging current, temperature, etc. * Measuring distance: Less than or equal to 7m. * Due to the Bluetooth hardware feature, the APP only can connect with one battery every time. * If you want to connect this battery with another mobile phone, pls exit this program. * As the iOS system openness, different cellphone manufacturer will have their own customized feature on the cellphone . So the APP can not work well on some cellphones due to compatibility issues.