We have a 2002 Sun Voyager Model 8329. Under the "hood", there are three electrical devices labelled Hi-Amp Buss. Two of the three devices are numbered with 184080F, and the third is numbered 185100F. The positive lead of the batteries is supplied to all three, and I don't know what the "output" lead(s) are routed to. What is the function of these devices?
Thanks in advance for your help.