Synergy Digital SDLI40B (Li-Ion 3.7V 800mAh) Replacement For Olympus LI-40B & LI-42B Batteries - For Olympus Stylus 1040, 1050 SW, 1200, 1050 SW, 1200, 3000, 5010, 550WP, 700, 7000, 7010, 7030, 710, 720, 725 SW, 730, 740, 750, 760, 770 SW, 780, 790 SW, 82 Replacement battery for the Olympus LI-40B, Lithium-Ion (Li-ion) 3.7V (800mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark