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
Kastar 2X Battery + Fast Dual Charger for Olympus BLM-1 BLM-01 PS-BLM1 C-