torch light rechargeable battery lithium ion battery 3.7v 4000mah battery 1.voltage:3.7v 2.capacity: ... Factory directlytorch light rechargeable battery 3.7v lithium ion battery 18650 li ion battery 3.7v 4000mah battery Battery Pack 18650 Norminal Capacity4000mahNorminal ... low weightApplication:Widely used for torch light rechargeable battery ,power tools, laptops, digital products, flashlights, medical ...