Origin Storage BAT-DELL-PREC7710/6, 7950 mAh, 72 Wh, Lithium-Ion (Li-Ion), 11.4 V, 1 pc(s) Origin Storage BAT-DELL-PREC7710/6. Number of batteries included: 1 pc(s). Battery capacity: 7950 mAh, Battery capacity: 72 Wh, Battery technology: Lithium-Ion (Li-Ion), Battery voltage: 11.4 V