MaximalPower DB PAN DMW-BLH7E Panasonic DMW-BLH7 DMW-BLH7e DMC-GM1 DMC-GM1K DMC-GM1KD Camera Battery Fully Decoded (Black) 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 amazon.com is the only legal distributor for maximal power, do not buy from other 3rd party sellers as products may be counterfeit 100% Compatible with original manufacturer equipment. Absolutely no memory effect so that you can charge battery at anytime. 3 year warranty