JETBeam i4 PRO Intelligent Charger enhanced V3 - 3rd Generation (Black) For 18650 RCR123 AA 18500 14500 18350 16340 18700 with Ac and 12V DC (Car) power cords, 2 X EdisonBright AA to D type battery spacer/converters Automatically identifies Li-ion, Ni-MH and Ni-Cd rechargeable batteries Capable of charging 4 batteries simultaneously; Each of the four battery slots monitors and charges independently; In-Car charging 12V cable included. Automatically identifies Li-ion, Ni-MH and Ni-Cd rechargeable batteries Features three charging modes (CC, CV and Trickle Charge); 3 Color LED displays charging progress for each battery 2X EdisonBright AA to D battery converter spacers included. These allow use of rechargeable AA batteries in D battery equipment.