MELASTA Replacement Digital Camera Battery NP-FM500H Battery Pack for Sony A57 A65 A77 A450 A560 A580 A900 A58 A99 A550 A200 A300 A350 A700 F717 F828 R1 Brand new Li-ion rechargeable battery (1600mAh, 7.4V,Li-ion). Perfect for SONY A57 A65 A77 A450 A560 A580 A900 A58 A99 A550 A200 A300 A350 A700 F717 F828 R1 Up to CE Certified.No memory effect. Safe with rapid-charge technology while providing overcharge and over-discharge protection to extend the battery life. All Melasta branded items carry a 1 year warranty against manufacturer defects.