09-24-2014, 06:51 AM
The alternator recharges the house batteries (which the generator uses as a power source for starting). If you are parked for an extended period of time, the generator's alternator will recharge the house batteries during the time the generator is running to help prolong the time you can live off of your house batteries when the generator is shut down.
By turning on the merge switch, the generator batteries would also slowly recharge the engine batteries.
By turning on the merge switch, the generator batteries would also slowly recharge the engine batteries.