2007 fxdwg - thundermax with auto tune, d&d 2 into 1 and big sucker


Bikes been parked up the last week after a good few days of riding and running really really well. I tried to start it today but its got a dead flat battery, had AAA come and jump bike, did the 30 sec on/off procedure before starting but the bike cuts out once jumper leads are taken off terminals and is not charging. I know this maybe bit much to ask (Needle in haystack) but Any ideas what maybe wrong? if I try go to the local H-D dealer they may void my warranty due to them not installing the T-Max.

Any help appreciated

 

battery less than 10 months old, i may get new battery to see, otherwise I believe its the charging system