XTAR VC4 Battery Charger LCD USB Charger For 10440/16340/14500/14650/18350/17500/18500/18700/21700/20700/18650 Battery XTAR VC4 Charger Clearly see what’s going on with the batteries. • Tachometer-style LCD display shows detailed charging status • Powered by any 5V USB power • Intelligently chooses charging currents from 0.1A to 1A • Wide adaptability, adapts from 10440 to 32650, from Li-ion to Ni-MH • Energy-saving LCD backlight, can be turned off at your will