Olight Omni-Dok Universal Battery Charger For 18650 RCR123 AA AAA 16340 17670 14500 with AC adapter and 12V DC (Car) power cords, Two Olight 3400mAh 18650 rechargeable Li-ion batteries with Two Edisonbright AA-&gt;D battery spacer shells Able to simultaneously and safely charge different types of batteries Batteries are charged independently with smart charging technology to regulate power accordingly Battery power indicators monitor individual charging status of each battery at 25%, 50%, 75% and 100% Batteries are charged independently with smart charging technology to regulate power accordingly Overcharge protection stops charging when a cell has reached a full charge Bundle includes 18650 rechargeable batteries, 12V Car charger travel adapter & 2X EdisonBright AA to D battery converter spacers