Sony NP98 NiCAD Rechargeable Battery - NICAD rechargeable battery pack for camcorders with up to 5.5 hours battery life STAMINA super long battery life 3 x more power than original standard battery (NP-55) Power: 6 V, 18 Wh, 3,000 mAhSee all Sony Hifi and Home Cinema Products and more Home HiFi Systems