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
Olympus BLM-1, BLM-01, PS-BLM1 Battery (2-Pack) and Charger by Wasabi – Wasabi Power
3pcs Ps-blm5 Psblm5 Camera Battery For Olympus C-8080 C-7070 C-5060 E1 E500 E330 E3 E520 E510 E300 Camera - Digital Batteries - AliExpress