Hey Jammer
I'm running a hj61 TD, It might be a charging probleme so you must 2 batteries the thing is one is more charging the other one the best is to split them every month and to run any electric aparels you have to put a 24/12v converteur otherwise you'll always have a probleme of using the same battery for your radio or other I've got this trouble for a long time until someone explain me

! The other solution is putting an equaliseur on the driver side battery .I hope you understand me ...
Good luck
eric