Both digital cameras use the same BLS-1 lithium-ion battery and come with a battery charger for it. The E-P1’s battery will spend more time resting in the charger; it gets about 300 shots per charge. The E-620 can get 500 shots per charge, but that’s when using its optical viewfinder. When they both use the live view on the LCD, they run about even in terms of battery power. Because the E-620 has a viewfinder and gives you an option to stretch the battery power, we’re handing it the edge in this category.
