2-Power DR9948, 820 mAh, 3.7 V, Lithium-Ion (Li-Ion) 2-Power DR9948. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 820 mAh, Purpose: Camera. Width: 1.46" (37 mm), Depth: 1.77" (45 mm), Height: 0.276" (7 mm)