I have a strange Problem with my Battery. It won't charge, full. It charges always a little bit. When I got it, the battery was charged a little less than half full. It worked about 45 minutes and switched itself off. Now it needs to charge about 6 hrs to last 5 minutes. After 6 hrs the blue lights turn off (fully charged). When I unlug/replug it it starts all over again with charging. I have also built a 9Volt block charging adapter, so I can use a 9Volt Block to charge my Eken. As soon as plugged in, the Eken shows me 100% battery, but switches off after about 5 minutes. I don't get the "charging" symbol. 1. Does anyone know how I could repair the Eken?2. Does anyone know how much amperes the Eken needs to accept the external power source for charging?I hope anyone knows answers.Ps: My English issn't that good,.. so be clement.