I have the MPPT 75/15 unit installed in my 4x4 and connected the the Auxiliary battery for solar charging (using a 100W solar panel) as well as to manage the load output. Since solar may not always be sufficient in high demand situations (and/or not able to charge via alternator when stationary), I plan on connecting a BluePower 12V/15A charger to the mix where camp sites may have 220V power.
If both devices are directly connected to the battery (with the MPPT providing solar power to battery), will there be any risk when the Charger is plugged in and also providing charge to battery? Will the MPPT detect this higher charge on the battery and then go to float mode (or switch off)? Any settings I need to make on Connect App?