Hi!I have a problem - my mp4 player's original battery died, and i tried to replace it, i took Nokia BL5C battery and soldered it to circuit, but unfortunately it last about 1 hour, meanwhile the volume is way to high! Earlier I listened music at 21-25 of 32, but now 13/32 is loud. Maybee someone has any ideas?I think i should reduce the current somehow, but how. P.S sorry for my english