【Battery Type 】 18500 3.7V Li-ion rechargeable Battery
【18500 Specification 】: The Capacity is 1600mAh, Dimensions (Dia. x H.) -18.3 x50 mm / 0.7 x 1.97 inch
【Ideal for & High Cycle Life】: Compatible with solar lights, flashlight, 500 Times Cycle Life
【Important Note】: Please Check the Size and volts Before You Place an Order,18500 3.7v li-ion battery are not AA, not 3.2v LiFePO4 Battery
【100% GUARANTEED】 If the battery does not meet your expectations, let us know and you will be offered a full refund, we pride ourselves on excellent customer service