Nitecore Sysmax Intellicharge i4, Four Bays universal battery charger, Four Nitecore 18650 NL183 2300mAh rechargeable batteries with 2 X EdisonBright AA to D type battery spacer/converters Capable of charging 4 batteries simultaneously Automatically identifies Li-ion, Ni-MH and Ni-Cd rechargeable batteries Features three charging modes (CC, CV and Trickle Charge) 4X Nitecore 18650 type NL183 batteries and 2 X EdisonBright AA to D type battery spacers included Compatible with and identifies Li-ion (26650, 22650, 18650, 17670, 18490, 17500, 18350, 16340(RCR123