Gen battery charge

[Jim Benson]

So much battery talk prompted my question. I have had my 74-FC-31
plugged in for a week under the assumption that plugging in charges the
batteries. Engine and house battery seem fine, just the generator
battery continues to lose charge to almost dead. I did remove and
charge the battery, but what could i do to keep to it that way?
thanks for the help.

Jim
74-FC-31
MAI TAI FINE