I believe most (all?) compressor units below about 80L consume around 4 to 5A with 30L-ish ones consuming less.
I have a dual zone 80L and that's a pretty big fridge, a two man lift when it's full and not light when it's empty. I suggest not going above 60 to 80L unless you have a specific purpose.
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"I beseech you in the bowels of Christ think it possible you may be mistaken"
Oliver Cromwell, 3rd August 1650 - in a letter to the General Assembly of the Kirk of Scotland
the back cigarette plug states 120 watts i take it that is max load , so what size of unit can i run
looking for a 240 volt come 12 volt unit
120 W at 12 V equals a current draw of 10 A. Select a unit that has a constant current draw of 10 A.
For the best reliability, you are better off scrapping the cigarette lighter system and use a more reliable plug/socket set like the Merit connectors. If you get something like a Waeco fridge, their cigarette lighter plug has an orange sleeve that you can remove to convert the plug to a Merit plug. If you wire a merit socket directly back to the battery you can use a cable that is much heavier than the lightweight stuff provided by motor vehicle manufacturers. This will suffer a lesser voltage drop to your fridge and you will get begtter operation all round.
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PeterD Nissan Navara D23 diesel auto, Spaceland pop-top Retired radio and electronics technician. NSW Central Coast.
As said, don't use the standard 12v socket. Apart from the plug working their way out. The back of the socket connector for the spade connectors is thin & has poor electrical contact.
I replaced it with an Anderson plug which fitting in the existing hole & put another Anderson plug on the fridge with a 7amp panel circuit breaker from Jaycar.
I bought one of these a few months back to replace the Waeco that I had for about 15 years.
It has been excellent in 38C heat with the inside fridge temperature not varying at all. It is not too heavy but it either has to used as a fridge or a freezer. I cant recall the price I paid for it and I wont have access to the receipt until Saturday but Im positive it wasnt the price now shown. With BCF I always look at things I want and wait until they have their sales which are fairly regular as there are considerable savings to be had.
