Amazon.com : Replacement Battery for Olympus E-450, EVOLT E-410, E-620, E-400, E-420 (BLS-1, PS-BLS1) : Digital Camera Batteries : Electronics
Olympus E-410 Battery and Charger with Car Plug and EU Adapter - Replacement for Olympus BLS-1 Digital Camera Batteries and Chargers (1150mAh, 7.4V, Lithium-Ion) - Walmart.com
Olympus E-410 vs Olympus E-620 Detailed Comparison
Olympus E-410 EVOLT Review: Digital Photography Review
Olympus E-410 Review
Olympus E-410 EVOLT Review: Digital Photography Review
Olympus PS-BLS1 Spare Battery for Olympus Evolt E-410 and E-420 - Van Tuil