How long will it take to recharge the system on shore power?

This is dependent on what charging configuration you have installed. Below, is the time based from a full discharge state of 10.8vdc. The MPS system, since January 2017,  are designed to only operate one charger @ 55A when the system is on shore power, during generator operation the system is charged at 110 Amp.

MPS-3400 – 110A – 12 hours (Generator)
MPS-3400 – 55A -24 hours (Shore Power)