The 18650 Lithium-Ion rechargeable battery is used in all our B.A.M.F.F. models. This version holds 2000 Milliamp Hours of charge. Great as a back up battery!
If you want more runtime or have the B.A.M.F.F. 8.0, we recommend using the 2600mAh version
(1) 18650 Li-ion rechargeable 2000mAh battery