![]() ![]() We could have run one wire and reused the existing wire from the Batt Boost switch. We also ran a pair of wires from the RRB to the dash for the remote switch. Mechanically the ML-ACR is a similar size to the Big Boy relay and we used 1/8”x3/4” copper bar to connect the ML-ACR to the existing wiring. I left the circuitry in place and just taped up the outputs that would go to the Big Boy. ![]() In those cases the ML-ACR replaces the isolator, the Battery Boost Relay, and the Lambert style or Trik-l-Amp or Trik-l-Start solution to keep both sets of batteries charged.įor our coach the ML-ACR replaces the Big Boy relay and renders the circuitry that drives the Big Boy unnecessary. I have helped Vanwill replace the same setup on his 2000 Dynasty and another friend on his 2002 Signature. I had previously replaced the diode based isolator and battery boost relay with the ML-ACR on our 1994 Signature and it has operated without issue since 2014. Senses charging on either bank of batteries to combine in Auto mode Takes no current to hold it in either position, so does not run hot LED status indicator on the remote switch that replaces the Battery Boost switch in the dash/side panel Cole hersee part number 48530 smart battery isolator manual#Auto mode as well as manual off and manual combine override via the remote switch or on the relay itself Will charge both sets of batteries from the alternator or output from the inverter/charger It has automatic voltage sensing so that if either bank is being charged and the other is not, then it will connect the two banks of batteries. The ML-ACR is a simple device that does one thing: connects or disconnects the house and chassis batteries. A much better solution that costs less than a Big Boy Relay. I cleaned my Big Boy once, and when it needed it a second time, I replaced it (and the BIRD circuitry) with a Blue Sea ML-ACR. I have also made some updates to the original post here. I had previously posted this as a reply in another thread, but I have referred people to it and wanted to have an easier way for them to locate it. ![]()
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