Made of durable and fire-retardant PC material, the Nitecore UM2 Intelligent USB Battery Charger is equipped with a large LCD screen to display the real-time charging information. Its dual charging slots, single slot max output current up to 1500mA, the new QC mode enable the max output up to 3000mA, allow the batteries can be charged fully in short time. Nitecore UM2 Intelligent USB Charger is compatible with IMR/Li-ion/LiFePO4: 10440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650, 26700, Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D