MaximalPower DB SON NP-FW50 Replacement Battery for Sony NP-FW50 battery and Sony a33, a55 DSLR cameras 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 camcorder LCD. It also can be charged by Canon original charger 100% Compatible with original manufacturer equipments and chargers Maximalpower is one of top selling brands for replacement batteries at amazon Backed with 1 year warranty and $2 million product liability coverage Fully Decoded to work with your Camera and Origional Charger