Hi, I've got the potential to get a compressor fridge at a very cheap price, the only problem is that is runs on 240v. I was thinking of getting a 12v to 240v converter but was wondering what affect the process would have on the amp draw on my leisure battery. It says it draws 3 amp at 240v but how do you calculate the change down to 12v. Is it a simple 20x difference? Anyone have any ideas!
I have a westy fridge that runs off the leisure battery or 240v and that's supposed to draw 5.4ampsmax, in reality that's an overnight stop and the battery is pretty much done! If your not going places with leccy hookup go for gas, or a coolbox with ice We have kept ours as it original fit, and just takes coolbox for pod weekends, so have adapted to the van
Yeah, I'm all up on the right ones to get. I've got my eyes on a proper waeco compressor fridge which draws next to nothing amp wise and also a 3 way fridge so I could use gas. I've just been offered the option of getting this compressor fridge but as its 240v I just wondered how quickly it would suck up the battery. From what you are saying, very quickly is the answer!
watts = volts x amps=3x240=720watts /12 = 60amps!!!! plus inverter losses it aint going to work mate!
I find it hard to believe a fridge requires quite that much power. Are we talking A or Ah? I'm no expert but I believe there's a difference. Even at 240V 3/4 of a Kw to run a fridge? That would boil a kettle... I hope that wrong because I have an enormous Liebherr fridge that I haven't switched off for 15 years. No wonder my elec bill is high...
hes's right i would ad 10% or 20% if a cheep one for the inverter losses. 3amps sound a bit high for a small fridge 71amps so if its runing the compresses about 35% of the time on a 100ah battery it will run for my brain hurts you can work it out. ether way i would not bother unless you use hook up
I use an electrolux 3 way - takes 7 amps so only really running on 12 volt when driving, uses mains if ive got hook up or gas if not which is fine! 75 watt heater so yes 720 watts does sound high for a fridge. Its not the fuse size thats important -you need to check the rating plate if it has one. I any case I wouldnt bother with it unless your just using it on hook up, At all other times it will be a cupboard (you could put some ice packs in there eh) Some blurb from electrolux destructions. When operating en 12 volts the refrigerator has a relatively high current consumption (7 amps) and it is only intended to be used by this method of operation whilst the engine is running and charging the battery otherwise the battery may become discharged to a point where it will not re-start the car engine. 12 volt operation is net thermostatically controlled and the 75 watt heater is 'en' all the time the refrigerator is connected to the 12V supply and any switches in the line are "on'.
Thanks guys, that's what I was getting but kept thinking 60 amp was way too high for a fridge but I suppose that's why it's going cheap! I might get it as a spare garage fridge for the BBQ beers...
