Nitecore New I4 battery charger is a universal, smart-charger compatible with almost all types of rechargeable batteries.It is a new version of I4. You can charge at up to 1.5A in one slot, which halves your waiting time.Parameters:140mm x 94.8mm x 37mmInput:AC 100~240V 50/60Hz 0.25mA(max) 10WDC 9~12V 1AOutput:4.35V±1%/4.2V±1%/ 3.7V±1%/1.48V±1%1.5A×1/0.75A ×2/0.5A ×2/0.375A ×4Compatible 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, 26650Ni-MH(NiCd):AA, AAA, AAAA, C, DCapable of charging 4 batteries simultaneously100% charging accelerationActive current distribution technologyExpanded compatibility to support 3.7V and 4.35V batteriesIMR battery restorationAutomatic detection of non-rechargeable batteriesAutomatic current selection based on battery capacityAutomatic adoption between three charging modes (CC, CV and dV/dt): Optimal -dV/dt charging for Ni-MH/Ni-Cd batteries and charging program optimized for IMR batteriesReverse polarity prevention and short circuit preventionOvercharging timeout protection and over-discharged battery activationAutomatic intelligent temperature control and protectionUncluttered and concise design, artisan craftsmanship and comprehensive power compatibility,Compatible with 1.2V, 3.7V, 4.2V, 4.35V batteriesTerminating threshold for battery voltages and charging current can be set independently for each individual slotAutomatically detects battery power status and displays charging progressDesigned for optimal heat dissipation, made from fire resistant, flame retardant PC materials, certified by RoHS, CE, FCC and CECPower on: Connect the NEW i4 to an external power source (such as vehicle adaptor, power socket) with its charging cord.Battery placement: Put one batteries in each independently-controlled slot according to the polar mark on the charger.Battery identification: All Four LEDs indicators will be lit when Lithium batteries are placed in, two lower LEDs will be litwhen Ni-MH batteries are placed in. Charging begins in two seconds.Battery inspection and error reporting: The NEW i4 automatically distinguishes rechargeable batteries fromnon-rechargeable batteries. It automatically reports errors when non-rechargeable Lithium batteries are inserted, or batteriesare short-circuited or inserted backward, all four LED indicators will blink, and the charging process will be halted.Note:(1) The non-rechargeable Lithium battery detection is an ancillary function.a. The main purpose of this function is to identify completely discharged CR123 batteries in case that such batteriesare inserted for charging, which could lead to explosion.b. Due to the diversity of battery chemicals, the charger cannot detect all non-rechargeable batteries. Please do notinsert any batteries known as non-rechargeable in the charger.Smart charging: The NEW i4 adopts the appropriate charging currents based on battery types and capacities. Whilst theoption to adjust the current is also available. The NEW i4 is compatible with:1) 3.7V Li-ion rechargeable batteries2) 3.8V Li-ion rechargeable batteries3) 1.2V Ni-MH/Ni-Cd rechargeable batteries4) 3.2V LiFePO4 batteriesDuring the charging process, the three indicator LEDs indicate the batteries' status.