Amazon.com : Wasabi Power Battery (2-Pack), Dual 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,
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
Watson Battery Adapter Plate for BLS-1, BLS-5, or BLS-50 P-3508
1800mAh PS BLS1, BLS 1 BLS1 Battery for Olympus E 400, E 410, E 420, E 450, E 600, E 620, PEN E P1, E P2, E P3, E PL1, E PL3|for olympus|olympus batterybattery olympus - AliExpress
For Olympus BLS-1 BLS1 Camera Battery Evolt E-620 E-450 E-420 E-410 E-400 2 pack 804081322644 | eBay
ProMaster BLS-1 XtraPower Lithium Ion Replacement Battery for Olympus #8449 - The Film Center