We all see your 'new owner' concerns, but like your home, you don't 'cut off all power' just because you are going away for the weekend. Everything electrical LIKES to have electricity, not the other way around. Having power ON hurts nothing, and does not inhibit the long-term performance... it might be just the opposite.
You can have power, and yet still turn your 120v fridge 'off', or turn it down where it doesn't come on.
You can have power, and continue to allow you battery Charger to do it's job, keep the House Batteries maintained, which they appreciate.
You can have power, and yet turn your Inverter OFF, if you wish, but the power continues to flow thru, since you have shore power. The only difference is that the Inverter will not be on to provide power if shore power is lost.
Many, many RVrs and Motorhome owners across this country have NEVER been without shore power, they are ALWAYS plugged in. Whether you are living in the RV, or just storing it over the winter months, having POWER will make no long-term negative impact.
__________________
|