... Lithium battery Brand: YEZL 10440 FLASHL Size: diameter 10.3mm, height 44.3mm, (and 7 the same as the battery size Name: 10440 Lithium ... 2.75V-4.2V,Do not over-useReminded: over-discharge the battery end of life caused by the customer conceited!Long-term ... , and to recharge the batteries every six months,Please use high quality rechargeable lithium battery charger dedicated