Kastar Replacement Digital Camera Charger for Olympus E-520 E-1 E-3 E-30 Olympus EVOLT E-300 EVOLT E-330 EVOLT E-500 EVOLT E-510 and Olympus BLM-1 BLM-01 PS-BLM1 Battery. : Digital Camera Battery Chargers : Electronics - Amazon.com
Synergy Digital Camera Battery, Works with Olympus E520 Digital Camera, (li-ion, 7.4V, 1850 mAh) Ultra Hi-Capacity, Compatible with Olympus BLM-01 Battery - Walmart.com
2550mAh PS BLM1 BLM 1 BLM1 Battery For Olympus C 5060 C 7070 C 8080 E 30 E 300 E 330 E 500 E 510 Evolt E 520 SLR E3 HLD 2 HLD 4|Digital Batteries| - AliExpress