For Olympus BLS-1 BLS1 Camera Battery Evolt E-620 E-450 E-420 E-410 E-400 2 pack 804081322644 | eBay
Wasabi Power Battery for Olympus BLS-1, BLS-5, BLS-50, PS-BLS1, PS-BLS5 (2-Pack) - Walmart.com
Amazon.com : Wasabi Power Battery (2-Pack) & Charger for Olympus BLS-5, BLS-50, PS-BLS5, BLS-1, PS-BLS1, E-420, E-450, E-600, E-620, Pen E-P1, E-P2, E-P3, E-PL1, E-PL3, E-PM1, OM-D E-M10 Mark II, III, IIIs,
Olympus OEM PS-BLS1 Battery For EP-1 Pen, Evolt E-410, E-420 and E-620 *EX* | eBay
Amazon.com: Kastar 2 Pack PS-BLS1 BLS-1 Battery and Charger for Olympus Evolt E-420 E-410 E-400 E-450 E-600 E-620 PEN E-PL1 E-P1 E-P2 E-PL3 E-PM1 E-P3 Digital Camera
Synergy Digital Camera Battery, Works with Olympus E450 Digital Camera, (li-ion, 7.4V, 1600 mAh) Ultra Hi-Capacity, Compatible with Olympus BLS-1 Battery - Walmart.com