I needed a more powerful battery for my Panasonic SDT-750 HD camcorder. As a good alternative I remembered the Blumax Li-Ion battery, which also has an attractive price / performance ratio (I hoped anyway). My hope was not disappointed! The current reserve is sufficient now loose for 3-4h and fulfills my needs. The battery also fits easily to your camcorder (without wobbling) and is super loaded. I highly recommend this model. 1+