Tenergy T4s Intelligent Universal Charger, 4-Slot Battery Charger for Li-ion, LiFePO4, NiMH and NiCd Rechargeable Batteries,18650, 14500, 26650, AA AAA C Cell Battery Charger with Car Adapter CHARGING MADE EASY - So many features built in to a robust device. The Tenergy T4s Universal Battery Charger can power up to 4 batteries simultaneously. The charger automatically identifies Li-ion, NiMH, and NiCd rechargeable batteries and will apply the appropriate charging mode - (Constant Charging Current (CC), Constant Charging Voltage (CV), and Trickle Charge) simplifying the charging process. WIDE COMPATABILITY - Built with high tech circuitry, the Tenergy T4s is an optimal household battery charger as it is compatible with most popular standard rechargeable battery types- NiMH / NiCd: (AA, AAA, C, Sub C). For more power heavy users, its also compatible with Li-ion / LiFePO4: (26650, 22650, 18650, 17670, 18490, 17500, 17335, 14500, and 10400). SAFETY PROTECTION - The individual battery charger will automatically stop charging upon completion to protect batteries from overcharge. There is reverse polarity protection to prevent damage to circuits. It is designed with optimal heat dissipation to prevent overheating. For a comprehensive charger, there is no better than the Tenergy T4s! SIMPLE & SMART CHARGER - In each of the four slots is a microcomputer control to monitor & charge the cells independently. Yellow indicator lights above each of the batteries are used to track progress and charging status. CE CERTIFICATION & 1 YEAR WARRANTY - Held to the rigorous standards by CE, the Tenergy T4s button top battery charger has met certification. With a Tenergy 1 year warranty policy, your charger can stay protected providing your devices to stay powered by Tenergy. *Comes with a car adapter! Input voltage: AC 100-240V 50/60Hz or DC 12V Output voltage: DC 4.2V, 3.6V, 1.48V Output current: 425mA x 4/ 850mA x2 Dimensions: 137mm x 97mm x 40.5mm Weight: 206g (without batteries and power cord) Compatible with: <ul class="a-unordered-list a-vertical"> Li-ion / LiFePO4: 26650, 22650, 18650, 17670, 18490, 17500, 17335, 14500, 10400, 16340 (3.2/3.7V CR123A only) Ni-MH / Ni-CD: AA, AAA, C, Sub C