my VOLTS reading, when in use, varies from the 'at rest' 12.5 to 12.8 or so, to a much lower 11.6 to 12.2 when in 'heavy' usage by items, or even temporarily into the 10's if the microwave is run while on the inverter.
if your readings are typically staying between 12.6 down to 11.9 or so, you'll be fine. If you have your AGS set to crank and charge the batteries when they fall to 11.9 or so, you'll also be in good shape. If you have an LBCO setting on your inverter, then set it to about 11.5 to help preserve the batteries by cutting off the inverter, should the gen fail to crank.
Check you SHORE button/setting - as it tells the Charger how many 'max' amps it can make use of when the Charger is in action while on Gen or Shore power. The higher the more it can use, for quicker charging... less if you want to make use of more amps for other things, like air conditioning, without tripping a breaker.
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