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Hello,
Hoping someone may be able to help.
I have a non isolated b2b charger that I am hoping to install shortly. My plan was to connect both positives, one from the main battery and one from the leisure battery and then to feed the negative wire to ground via the phoenix distributer. I have looked at the installation guide and note that the positive wire should be connected to the alternator not the starter battery. Will the way I was planning to install it still work? Many thanks in advance.
connect to the Starter +ve as you are thinking. 100% ok to do.
I don't really know what you mean by a "phoenix distributer" TBH. Would that be a "Lynx Distributor"? (in which case, answer is yes).
Basically, the Negative connection needs a route that can handle with ease the current the B2B can send.
I am assuming you have a good -ve connection on the Leisure Battery (LB) to chassis or Starter Battery? If so, then one easy option is to connect the B2B -ve to LB -ve and the B2B output +ve to LB +ve. Ideally a B2B is fitted in close proximity to the LB, so that route should be very doable?
One rule of course which some forget ... if you have a Smartshunt or BMV, the -ve connection MUST be on the LOAD side of the Shunt and NOT the BAT side. So if you have one those, replace my "LB -ve" with "Shunt LOAD"
