Hey adi , dont worry everything will be alright. Do check up often. 2 of my friends had accidents and have metal plate in legs. It need to checked now and then , One got gangarine (dont know exact term or spelling , it sounded like that) again a operation.
And for bat the cabin light discharge method is good one , though very rare people follow that. In our omni , amaron , maintainance free bat was never touched for more than 4 years . it worked fine. Our omni had lowest run , But the last run was some what good as i began to take car . 53K kms in 18 long year. last 10K kms was driven by me in 3 years with amaron. dad drove just 43K kms from 17th feb 1989 till october 2007