Compact Power Systems RCamX Cellboost iRecharge Universal Rechargeable Battery for most Camcorders Provides instant, reusable battery power when you need it most for your Sony, Panasonic, and Hitachi camcorders Gives you and extra 3 hours of recording time, which you can use all at once or space out over several sessions Easy to use, screws in to the tripod mount on the bottom of your camcorder so its out of your way, then simply plugs in Lightweight and compact so you can take it with you anywhere, and recharges so its good time after time Comes with 7 adapter cables, and is backed by a 6-month manufacturer's warranty