Efest Slim K4 Charger Battery Charger

Efest Slim K4 Charger Battery Charger Efest Charger K4 accommodates only four batteries. Portable design with high-quality piano wires. Features overcurrent, overvoltage, and electrical short circuit protection. LED indicator light for battery life. Small dual-port USB C charger 5 volts/1 amp each port independently monitored.