Everyone almost has a digital camera nowaday. But it is almost useless except the taking photos during travelling. Today when I want to use my digital camera I find that I almost don't know how to use it. Moreover digital camera consume much more electrical power.   The tester indicate clearly the battery has some power. But the digital camera give a hint of lower power. Sometimes the new battery which you just buy from supermarket is putted into a digital camera, it also give the same hint. So you don't know wether the battery has really lower power or a digital camera need much more power when it is in operation. What a hell.