... ,ROHS 3) Factory directlytorch light rechargeable battery 3.7v lithium ion battery 18650 li ion battery 3.7v 4000mah battery Battery Pack 18650 Norminal Capacity4000mahNorminal Voltage3.7VSizeD32*H65mmMax ... self discharge rate6.Small size low weightApplication:Widely used for torch light rechargeable battery ,power tools, laptops, digital products, flashlights, medical equipments ...