check your fuses there is one fuse i think it's a 15 amp but it is just for the chargeing system . i blew one on my hpx one time and sure enough no charging of the battery. lucky for me i hae a dual battery setup on my hpx so i just switched over to jump the hpx off. i did replce the fuse before jumping it off and it ran fine and i never had the problem again.