Maxfire NEW 4pcs/lot Blue 3.7V 2000mAh 16340 cr123a Li-ion Rechargeable Battery with 16340 battery charger 16340 3.7V Rechargeable Li-ion Battery Capacity:2000 mAh Size : 3.4 cmLength x 1.6 cm Diameter Charger Input Voltage: 100V~240V 50/60Hz Max150mAh Output: DC 4.2V 650mA