Maximal Power DB DB OLY BLS-1 X2  Maximalpower Replacement Battery for Olympus BLS-1 and E-PL1,E-P3,E-PL3,E-P1,E-P2,E-420,E-410,E-450,E-620,E-400 Camera 2 Pack Amazon.com is the only authorized dealer selling MaximalPower brand products. Please make sure your item is ONLY sold and shipped by Amazon.com! All other marketplace vendors are selling counterfeit products that do not perform the same, and/or are not covered by our MaximalPower Warranty Made with info-chip, which can show remaining time on camera/camcorder's LCD. It also can be charged by original charger 100 Percent Compatible with original manufacturer equipments and chargers Maximalpower is one of top selling brands for replacement batteries at amazon Backed with 3 year warranty and $1 million product liability coverage Integrated microchip prevents overcharging & lengthens battery life