I bought a psp off ebay which did not come with a battery. So i bought a battery and it wont charge. The psp works fine but when i put the battery in to charge the orange light comes up but when i look at the battery information it says 0% charged, it doesnt show any hours left, power source is external, and says charging. After a while when the orange light turns green the battery information is the same except this time it says charge complete. Now when i dont have a battery but the adaptor plugged in it works fine. any Ideas?