BT-C3400 With Car Adapter Universal Battery Charger Analyzer Tester for Li-ion NiMH NiCd rechargeable batteries BT-C3400 With Car Adapter Universal battery charger for Li-ion NiMH NiCd rechargeable batteries. Check your batteries for actual capcity measurement. Features four indepentant channels, like having four chargers in one. Programm each slot individually or all at once. Easy to setup and simple to use. Back lighted LCD display Digitally displays capacity, voltage, time elapsed and current for each battery charging channel. Charge, Discharge, Refresh , Test. Even test internal resistance. This charger does it all with ease. NiMH/NiCd sizes: AAAA, AAA, AA, A, C and SubC. Li-ion sizes: 10440, 14500, 14650, RCR123A (17340), 17500, 17670, 18350, 18500, 18650, 19670 (protected 18650), 25500, 26500, 26650