Compatible with Li-ion/IMR/LiFePO4: 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500,18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650. Ni-MH(NiCd): AA, AAA, AAAA, C, D. INPUT : AC 100-240V 50/60Hz 0,35A(MAX) 10W DC 12V 1A. OUTPUT : 4.35V±1%/4.2V±1%/ 3.7V±1%/1.48V±1% - 1.5A ×1 / 0.75A×2 / 0.5A×2 / 0.375A ×4. Automatic detection on each slot. Charging indicators, automatic shutdown at the end of charging. ATTENTION: This charger can not receive the 21700 from Nitecore because of their protections, we advise you the new models (UI1, UI2, UM2, UM4, UMS2, UMS4, Q2, Q4). Dimensions: 131mm x 70mm x 36mm.