Fridge power requirements

you got time to run some tests today and get back to me with them ?!
thoughts so far ??
 
as we speak . . . looking good so far . .

been running on 240v mains so far 2w tickover. - 45W ish when compressor running, speed controlled as needed, so it ramps up and down as needed.

Beer nice and cold so far =]

its happily ticking over at 0degc ( i normally have these things set at 2decc to stop too much freezing.

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tried it on 12v and got an E1 error - battery voltage to low . . . so i moved the switch to the lower setting and it kicked into life . .

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it didnt like the 5A regulated output on the battery pack . . . didnt start.

but its very happy with the 10A output..

the EHU PSU is 14v interestingly.


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fridge area . . .

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bottom section . . .

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Ill try and run it from a standard AGM 12v battery later . . . . .
 
ok, new "how i done it" thread trying to bring this all together, as its spread accross numerous threads. . . .

ill update this moving forwards . . .



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I'm here again with my stoopid questions.... :rolleyes: Hopefully this link will work....If it does? what are the thoughts on this as a suitable bit of kit to keep a leisure battaery topped up over a weekend?
 
My plan would be get one of the above fridges , maybe the smaller one, a leisure battery to run it and the solar to top up throughtout the day. This would all be set up as temporary type thing until I get more time to start the conversion of my van. What say folks? Madness or?
 
Over the last 15 years I've used quite a few cheap Chinese panels like those for various purposes and find them as reliable as anything - certainly none of the troubles recently reported here with Photonic Universe panels. Amongst others I have that controller too - ignore the 'dual' thing - its just an extra pair of terminals that particular controller has for a second battery, selected after the first one is full. This is too much faff and prone to mistakes - if you have two batteries, just parallel them and use the 'battery 1' connections.
100 watts is really 'only just', perfect for a sunny weekend but maybe a 150 would be more practical in typical Brit weather. An MPPT controller would make more of the available power but if you're on a budget a simple PWM controller like the supplied one is ok. The controller is easy to swap at a later date when funds permit.
Cheers
Phil
 
I would probably go for the 150 set up or maybe even the 200 to allow for further loads in the future as the Van......and expense develops....gulp!!

My set up for now will be simple and easily removeable for the van to be the workhorse through the week. Build a battery box on which the solar controller can be mounted on the outside, make a quick fit mounting for fitting the panel to ladder racks on van roof(panel mounted up when setting up camp and removed before driving vehicle ) and some sort of distribution set up to power lighting and fridge. I do intend to do more permanent type conversion work to her over the winter and spring, split charge/carpet/etc.but this will hopefully see me through the tail end of this year...
 
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Yes that kit would work.

As above id go for 200w.

Then at a later date upgrade the PWM Controller for a MPPT one.

With a 100ah leisure battery.
 
See here....


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And..

 
That's the solar ordered, the fridge ordered, also ordered my awning from Go Outdoors today. Also need to order a rail/driveaway kit. Any suggestions on the best type/brand/ supplier for a leisure battery?
 
Just gone out to load up for a day out and realised I left the fridge switched on since last time - a full week. I have it on the next-to-lowest setting and this is with a 100w PU panel. The leisure battery is still registering full after a week of mixed weather, so in this particular case the 100w panel has been plenty ;)
 
I suppose not opening and closing it, next to nothing in it perhaps has allowed it to run the compressor very sparingly and the solar was easily able to keep up the battery. Good to know...
Getting order progress and tracking info now for all my goodies I ordered yesterday, Sorted a battery out with Alpha batteries, so next week could be a busy week getting everything set up ready for a trip to Donnington for the BSB, fingers crossed it all goes ahead...
 
hey, similar question from me,

we have a dometic CRX50 fridge, 110A leisure battery. the fridge states 3.6A usage on 12V. so that means if the fridge is constantly running for 24 hours it would use 86A, and drain the leisure battery .
The only other things we'll be using from the leisure battery would be the LED lights, tap (~2-3 minutes a day) and the usb sockets to charge phones.

Based on this, we were looking at 150W panels, I calculated that should add about 90A a day? So would take a whle to drain, ie far longer than a full weekend, and if we were away longer I'm sure we'd drive somewhere at least once that would top it up.

Does that sound about right, or would more / much less be required?
 
The fridge only runs about 50% of the time. The exact % will depend on how cold you set it and ambient temperature in the van.
With what you have, it should run for a couple of days. We have similar and about 100W of solar power, and that’s plenty to keep the battery topped up if the sun is out to a reasonable extent.

Pete
 
Hi all,

Getting a little confused on fusing size for a fridge.

Instructions say use a 15A fuse but I understood that fridges can use higher amps on start up, which is why I have 6mm cable.

Also seen another document for the same fridge saying use a 10A fuse.

Can I ask what size fuses you use for your fridge please.

Looking at a Domestic CRE350

Cheers,
 
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