Quote:
Originally Posted by pas1963
Have a 2019 Cougar 26RBS that was bought in June 2018. Had dealer upgrade the battery to AGM but killed it by parking it in storage and didn't know the hitch jack light was on. Just bought a lithium 100ah to replace. Hopefully save money in the long run.
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Even with the hitch jack light turned off, your trailer, equipped with the OEM battery cutoff switch, will completely discharge any battery you install in roughly 7-10 days. The "phantom drains" (LPG detector, thermostat, remote control receiver, stereo memory circuits/clock, etc) in all RV's are not "turned off" with the OEM BCO switch.
The only "effective means to disconnect the battery" in any modern RV is to either physically disconnect the battery cables or to install a "second BCO switch on either the positive or negative battery cable "AT THE BATTERY CABLE" (your choice of which end of the cable to use)...