Sony NP-QM71D Battery are made from a grade cells and highest quality parts, the Sony camcorder battery are tailored made according to the original size, whether the battery appearance, size and quality are the same as with the original. Every battery should be under strict quality control including filtration and safety testing of voltage,capacity and battery core before leaving the factory, and has passed the authentication of CE, UL, EMC, CQC,ROHS, etc.
Product featuresBattery shows 240min life after a full charge, which was more than I was expecting. It is relatively light, and does not look much more bulky than the stock battery. Definitely a good buy.

