I bought a brand new JVC camcorder at the weekend and I,m convinced the battery that was supplied with it must be knackered. It will only charge for about 20 minutes and only powers the camera for about 5 minutes. The manual says charging time should be approx. 1hr 30mins and it should run the camera for about 45mins. Am I right? Is it goosed. PS whats the best place to buy more powerful batteries?