I am having problems with charging the battery on this dvd player. I know it's an old one but i can't find the manual (was put in so safe a place it can't be found). Does the light go green when it's charged or charging? I had it on charge for 5 hours yesterday thinking that would be enough to enable me to watch a 90 minute film last night but i only got 5 minutes of playback before the battery died. Please help!!!!