Camera comes not directly, is it the battery?

Lately I have often the problem is that the camera does not work either, and I only have to remove the battery to turn it off. I could not rule out whether it is the battery, which will but observe.

Have others have the same problem?

Because the price is very low, I take that into account, it should be at the battery. The capacity is ok, sometimes hooked the band during the cast, but that's not so bad.