hello, I own here in Senegal a BJ75 of 1985, all circuit in 24V. The original starter have burnt and impossible here to get a 24V spare starter. I finally got a 12V starter whch is plugged on the right battery while the rest remains on the 2 batteries. This system works but I have to invert the 2 batts right to left and left to right every week. I think the batt won't last too long... Is ther a way to equilibrate charge between both the 2 batteries ?