Isolated the live feed from main battery. Disconnected liesure battery.
Removed main battery feed and ignition feed
Refitted the MPPT unit to leisure battery and solar panel.
All working fine!
So disconnected battery temperature from SP unit. And removed the SP unit.
So I will be able to check how the two batteries respond to this.
The leisure battery feed via the MPPT unit is working fine on a sunny day today feeding 13.2 amps with an output of 12.6 v checked lights, fridge and propex heater all live and all off when I turn off supply from solar panel.
I can know monitor the main battery properly to see if the sterling unit was draining it, doesn't make sense at this point, but I can't isolate leisure battery with this new SP unit, as it causes all sorts of problems if the leisure battery is isolated. Alarm going of on SP unit telling me it's not connected to leisure battery!
The campervan won't be used as a daily drive so often now I'm retired, so the only way to stop the two batteries from "equalising" is to isolate, and if I forget to reconnect the SP unit sounds alarm that won't turn off straight away and last time I needed to do a reset! So a few weeks of monitoring will show up any issues but hopefully none!
Wires everywhere but if this works I'll buy a better MPPT unit ( current one is basic but does the job) the newer albeit 3 X the price at least has more controls and possible adjustments to suit.
We'll never freecamp as it frightens the wife, we have mains hookup when on official sites so probably won't need a fancy unit!
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