The NiteCore I2 intellicharger is a universal, automatic smart-charger compatible with almost all types of rechargeable batteries, thus eliminating the need to own several chargers. The I2 is able to automatically Identify li-ion, NiMH and NiCd rechargeable batteries and apply an appropriate charging mode (constant charge current (cc), constant charge voltage (cv) and trickle charge). Each of the i2’s two Micro processor-controlled charging slots is capable of monitoring and charging batteries independently. Additionally, yellow and Blue power/charging status indicator lights visibly indicate battery status and charging process, and flash when battery is inserted incorrectly. Features:capable of charging 2 batteries simultaneously each of the two battery slots monitors and charges independently automatically identifies li-ion, imr, NiMH and NiCd rechargeable batteries features three charging modes (cc, cv and trickle charge) automatically detects battery status and selects the appropriate voltage and charge mode 3 LED displays charging progress for each battery automatically stops charging when complete features reverse polarity protection designed for optimal heat dissipation constructed from ABS fire retardant materials certified by rohs, CE, FCC, cec, and KC specifications: input voltage: AC 100-240V 50/60Hz 0.25A (max) or DC 12V 1A output voltage: 4.2V 1%/1.48V 1% output current: 0.5mA x 2 dimensions: 131mm x 69mm x 36mm weight: 116g (without batteries and power cord) compatible with: li-ion: 26650, 22650, 18650, 18350, 18490, 18500, 17670, 17500, 14500, 10440, 16340 (Rcr123); NiMH, NiCd: AA, AAA, aaaa, C.