shore charging

[mait]

Hi,

I am no electrical genius but I would like to add shore powered charger to my batteries. And keep things as simple as possible. This is to keep battery charged while overnight in marina and refrigerator and lights are turned on.

Current system consists of two 12V 70Ah lead / acid batteries, house and start.
House battery is charged via 40W solar panel.
Start battery is charged by engine alternator.
Batteries are connected to each other via VSR that detects voltage on start battery only. When the engine is running and start battery gets charging the VSR closes and house battery is charged, too.

Can I just add a big enough smart charger and connect it to start battery? Should I connect it to Start Battery or House battery?
House battery is what needs the shore charge but there is a solar panel already connected to it (via controller of course)

[travellerw]

Connect the charger to the house battery side (through a buss bar, of course).

There is no problem having a solar charger and a house charger connected to the same battery.