I added shore power to 265 Express -
I have three banks:
One bank is two batteries in parrell for starting starboard motor and powering house ammenties (fridge, ect)
Second bank is for port motor
Third bank is isolated spare
I went will ProTech 1230i charger -
I installed it myself - connected it to s shore power plug - ran all dedicated cables to each bank -
There is a power distrubution panel (circuit panel) between the shore power connection and the charger -
It works great - I leave the DC fridge on all the time -
Tim