wfco possibly issues Bulk mode..Charge abilitys?

Simply put you used more power than you put back
don't turn off the generator
run the generator 3 hrs first thing in the morning,
let the solar help during the day
try to use the generator for the heavy stuff, MW etc
use inverter at night for quiet time

12.8 is NOT over charged
my AGms rest 13.1 when fully charged

13.6 charge is OK for shore power charging

for generator RUN, you need 14.4 - 14.8v