Battery (2-Pack) for Panasonic Lumix DMC-S3,DMC-S3A Digital Camera Chemistry: Rechargeable Lithium-ion, Voltage: 3.7V, Capacity: 750MAH High Quality Replacement Battery for Panasonic DMW-BCK7,DMW-BCK7PP,DMW-BCK7E Rechargeable Lithium-ion Batteries Fully Compatible With The Panasonic Camera and Panasonic Charger Absolutely No Memory Effect, You Can Charge And Use The Battery At Anytime 30 Days Money Back 12 Months Guarantee