Battery Voltage

Hi Drew. Can't help on the specifics, doesn't your fridge have a low voltage cutout ? Or are you asking if the cutout should be set at a higher voltage ?

I posted for info on Karratha earier in the year and I think you were of assistance, thanks. Son is now in Seaspray camp, wherever and whatever that is. My knowledge of the place has been extended...I now know its B hot there most of the time :))

Drew, try the site below it has a fairly comprehensive document on battery types etc & includes a table on voltage levels for a 12v deep cycle & % discharge. The table is based on "no-load" at rest for 3hrs or more. Suggests not to discharge below 20% (state of charge) which is approx 11.58volts. For better battery life many suggest not below 50% (particularly wet cell deep cycle) approx 12.06V.

www.windsun.com/Batteries

The one fault my fridge has is no low voltage cutout. Let the battery get too low last trip and the fridge sort of locked up ie It would not even start up on 240v until it had a good rattle and thump over some corugated roads. Can a low voltage cutout be fitted to an existing fridge?

Drew,
Set your fridge at 12 volts and you will save your battery, because it is not over discharging and readily accepts the charge from the alternator, it can be set to run down to 10.5 volt when you are not in a position to start the vehicle due to going away for the day, maybe taking the good lady shopping or are going fishing etc, it is better to have a flat battery than warm beer, as the battery will recharge again with some persistence.

(Quote)The only dial on the fridge is the thermostat, which will keep cycling until the battery is flat. (end quote)
that looks self explanetary, looks like you don't get to controll the voltage cut-out if you don't have the equipment, maybe someone knows of an add on system to controll voltage.