Highlights 2x 21700 Li-ion Rechargeable Battery Pack This extremely powerful Li-ion battery pack with 3.7 V and 35.52 Wh can be fully charged in 330 minutes. It is perfect as a second or replacement battery, e.g. for emergencies or particularly long missions in remote areas. Type2 2x21700 Battery Pack 3.7V Charging time 330 min Height 160 mm Width 70 mm Depth 24 mm Weight 0.16 g Matching products H15R Core H19R Core H15R Work