A pair of GC-2 Golf Car batteries should be around 220 AH at the 20 hour rate (Give or take about 10)
The proper charge rate is about 66 (or less) so a Progressive Dynamics 9260 (or equal) would be my choice
A 1000 model INVERTER generator **SHOULD** power one of those but you are right at the limit of it's rating.. My old Generac 1000 (A 1000 watt Traditional generator that really could crank out 1000 watts).. Had no problem with a 9180+wizard.
Another factor is depth of discharge
IF the batteries are say.. ONly down 25 perent.. They likely will NOT draw the full 60 amps so the 1000 will be right happy.
