Rechargeable Lithium-Ion Battery, Flashlight Application, Rechargeable Lithium-Ion Battery Battery Type, 2600 Mah Capacity, Lithium-Ion Chemistries Type, 3.6 V Input Voltage Rating, 2.7 In;69 MM Length, 5.6 Oz;50 G Weight, 0.7 In (Dia.);18.6 MM (Dia.) Width