Capable of charging four batteries simultaneously. Each of the four battery slots monitors and charges independently. Compatible with: IMR/Li-ion (26650, 22650, 18650, 184990, 18350, 17670, 17500, 14500, 10440, 16340/RCR123) and Ni-MH/Ni-Cd (AA, AAA, AAAA, C). Features three charging modes (CC, CV, Trickle Charge). Automatically detects battery status and selects the appropriate voltage and charge mode. Three-color LED displays charging status for each battery. Automatically stops charging when complete. Features temperature monitoring to prevent overheating. ABS construction.