Amazon.com : Replacement for Olympus E-510 Battery and Charger - Compatible with Olympus BLM5 BLM-01 Digital Camera Batteries and Chargers (1620mAh 7.4V Lithium-Ion) : Electronics
Genuine Original Olympus PS-BLM1 Battery for BCM-2 E3 E300 E510 E500 E520 BLM5 | eBay
Kastar Battery (1-Pack) for Olympus BLM-5, PS-BLM5 work with Olympus C-8080 C-7070 C-5060 E1 E3 E5 E300 E330 E500 E510 E520 Digital Cameras - PS-BLM5 - Olympus - Camera & Camcorder -