Say goodbye to long charging times. The Nitecore SC4 is capable of up to a blazing fast 3A speed in one slot and a total charging output of 6A. This four-slot universal charger handles most IMR/Li-ion and NiMH battery types including 18650, 16340, 14500, 26650 and more. Equipped with a USB output as well, the SC4 can be used to charge external devices such as laptops and cell phones. With intelligent charging features, using the SC4 is as easy as inserting your batteries into the charger - the SC4 does the rest. Both the charging current and voltage can also be adjusted for specialized batteries. A brightly lit LCD screen displays charging status and battery health while built-in overcharging, overheating and short circuit protections keep you and your batteries safe. In the event of a problem, the screen will read "EE EE" to alert users and cease charging.Specifications Input Voltage: --- AC 100-240V 50/60Hz: --- 1A (MAX) 40W: --- DC 12V 3A: Output Voltage: --- Battery: 4.35V±1% / 4.2V ±1% / 3.7V ±1% / 1.48V ±1%: --- USB: 5V±5% 2.1A MAX: Output current: 3A*2 MAX 1.5A*4 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, 26500, 26650 and more--- Ni-MH(NiCd): AA,AAA,AAAA,C,D Size: 6.50” × 4.33” × 1.77” (165mm×110mm×45mm) Weight: 13.59oz (385g) (without batteries and power cord)Features 300mA-3000mA maually selectable chargin current Compatible with 1.2V, 3.7V, 4.2V, 4.35V batteries High-definition color LCD screen displays real time charging parameters Utilizes energy-saving function Charging program optimized for IMR batteries Each battery slot controls and charges independently Automatically detects battery power status and displays charging progress