Lenovo TP Battery 25+ SL410/SL510/Edge14/Edge15 6 Cell Li-Ion
The ThinkPad Battery 25+ (6 cell) (51J0499) features:
Lithium-Ion (Li-Ion) technology
Six-cell, rechargeable system battery
Battery Energy: 57 Wh (Watt Hours)
Approximate height: 20 mm (0.8 in)
Approximate width: 207 mm (8.2 in)
Approximate depth: 56 mm (2.2 in)
Weight: 0.34 kg (0.75 lb)