The STREAMLIGHT-74175 is a rechargeable lithium-ion battery made by Streamlight that has a voltage of 3.75V and a capacity of 2Ah/2000mAh. Due to the control circuit within it, this battery is protected. The number of charge-recharge cycles on this cell is 300. This Streamlight battery is meant to function as a replacement for other Streamlight Strion batteries. The warranty on this product is Streamlight's limited lifetime warranty.