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3.7v Rechargeable Battery Li-40b Li 40b 42b For Olympus Li-42b Lithium Ion Rechargeable Camera Battery Pack 1200mah Battery Cell - Digital Batteries - AliExpress
Amazon.com : LI-42B / LI-40B / LI-40C Battery 2-Pack Bundle with Rapid Travel Charger and UltraPro Accessory Kit for Select Olympus Cameras Including FE-350, FE-360, FE-3000, FE-3010, and FE-4000 : Digital Camera