Cellmeter-7 Universal 1-7S LiPo Li-Fe Li-Lon NiCd NiMh Battery Balancer LCD Voltage Meter Tester Capacity Checker for DJI Quadcopter Multicopter RC Models For testing 1S-7S Lithium type cells, LiPo, LiFe, Li-Lon, NiCd and NiMh With built-in balance function and easy to read digital LCD screen Total voltage, cell voltage and remaining capacity readings for all Lithium type batteries Allows displaying highest and lowest cell voltage of LiPo, LiFe, Li-Lon and voltage difference between highest and lowest cells Package included: Battery Balancer Capacity Checker x 1; Free touch screen stylus pen is included (Random color shipped)