iMeshbean HIGH Precision Energy Watt Amps Meter Power Analyzer with LCD Display With 16*2 backlit LCD display; Operates from 4.8v to 60v; Prevents peak currents damaging battery,ESC,motors,wiring and connectors Verifies sufficient operating voltage under load; Individual cell balancing Set cutoff voltages,check battery capacity&health;Confirms proper battery charger operation (connect between your battery and charger)