Should not be a concern in equalization
mode as the batteries
should already be charged up and not drawing that many amps during this stage.
Otherwise the max you can charge with the Honda
depends on the output of the charger
section of the Heart 2500. How many amps or watts DC does it make in charger mode? Also would help to know the spec for the power factor of the charger.
I believe the Honda 2000 is rated for 1600 Watts continuous. That would be a theoretical maximum of about 133 Amps at 12V DC but of course you are charging
at higher than 12V plus you have to account for other factors. So in practical usage probably should not power a charger putting out 75 to 100 amps DC max for very long.