Freedom 20 Issue w/ Honda 2000i

[svmoonstruck]

Does anyone know why my Freedom 20 refuses to put out a charge when the battery bank is flat ?(11 volts) This happened when I tried to run the Freedom 20 from a Honda 2000i ? I have talked to three other people who have experienced this. The freedom tech support was no help. The Freedom 20 will charge 70+ amps when the batteries are partially discharged, but refuses to put out if the bank is flat. (400 amp bank) What would cause this ? Is there a fix besides the obvious, don't run your batteries flat ?

[sailvayu]

Does it work ok when running from shore power?

[Rick]

More than one brand of inverter/charger is programmed to prevent charging into a dead battery. This is done so that the charge function will not turn on without a battery or so that a battery with a shorted cell will not be charged which results in excessive gassing of the other cells.

The usual voltage sensed by the inverter charger is near or below 10.5Volts when the charge function is disabled. It is necessary to "jump-start" the charge function when attempting to charge a dead battery by connecting in parallel another battery that is over 11Volts or so until the charge function comes on.

[svmoonstruck]

I don't know. I couldn't try while I was away from power.

[Sailmonkey]

In this case I'd hook the 12vdc output of the generator up to the housebank until the charger would activate.

[svmoonstruck]

Yah thanks, I now have cables made up to be able to do that.