Rex rs460 does not start light and battery empty after a short time

Hello, I urgently need help! A few days ago the scooter only jumped on by kickstart. Control revealed that the fuse in the battery box was defective, was then replaced. Result: Roller started by automatic but no light. Ok, driving is necessary even without light But after some rides and the use of automatic starter and turn signal the battery power decreased. Battery is ok. Was recharged again and keeps the charging voltage!! Summary: – Engine running t, even without battery – horn, fuel indicator and turn signal – brake light goes – intrument lighting without function – headlight, stand light and tail light without function Who can help, also active,? To the scooter: Rex rs 460 delivered by SI 08/2012