Lenmar SOLOXP-OC Universal Li-Ion Travel Charger for Casio and Olympus Ultra Compact Universal Li-Ion Travel Charger for Casio NP-20DBA, NP-30, NP-40, Olympus LI-10B, LI-12B, LI-40B, LI-42B and others Worldwide Compatibility with 100-240V AC Adapter Works with virtually all 3.6-7.4 Volt Li-Ion batteries with the proper adapter plate (required - sold seperately) Built-in USB power port to charge your cell phone, PDA, MP3 player or other USB chargeable device Built-in fold-down / flip-up AC plug - no AC adapter to carry