 | Home > Technical > Waeco fridge and battery issue. Battery issue? |
 
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971   
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That sounds like voltage drop along the cable to the fridge. If that is the case you'd need a shorter cable run, heavier cable or both. You could alter the voltage cut out but it might then miss the battery actually getting low.
Running a fridge for 36 hours... maybe. You've got a lot more usable capacity with a 100Ah Odyssey than you have with most other 100Ah batteries but I'd be wary. My National Luna brochure (cheaper than the real thing  ) reckons about 1A average for a 40l fridge set at 31°C below ambient. National Luna are supposed to be pretty good as far as fridges go, so if you budget for 40Ah out of your 100Ah. With any battery other than an Odyssey I'd say no, with an Odyssey I'd say maybe. The more beer you put in and take out the less likely you are to be able to start your car the next day 
12 hours, no problem. 36... hmm. |
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12th Jun 2016 8:46pm |
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| Wild Card 90 Member Since: 03 Dec 2014 Location: Gerlingen Posts: 1060  
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Iīve had the same issue with 35L Waeco. It is indeed both the dimensions of the cable and the quality of the connectors that make the difference. 1998 Tdi 90 SW,
2008 Td4 90 SW, 2012 2.2 90 SW, 2" raised Trailmaster/Terrafirma Heavy Track Raids, 255 MTīs, Recaro CSīs, anorak, wellingtons |
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13th Jun 2016 4:04am |
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| DC101 Member Since: 01 Jul 2012 Location: Pudsey, West Yorkshire Posts: 260 
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Cupboard/Wild Card 90,
Thanks for taking the time to answer. I'll upgrade the wiring and take a more direct route from the main battery; the existing wiring must go 'round the houses' some, as I think the auxiliary power cable to the rear has its fuse under the drivers seat? I was hoping that 36 hours wouldn't be a problem, with the manual stating that current draw is 0.68 amps Ah/h at 20 degrees ambient? But absolutely good point; I'll monitor it - I'm not remote camping and will have other vehicles around, plus I pre-chill the fridge on the mains. And I guess I can always run the engine. Thanks again |
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13th Jun 2016 9:51am |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2250 
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In my experience, running a cf40 like you, 36 hours is about tops for reliable refrigeration, particularly if it's hot and the fridge is sitting in the back of your Land rover.
HTH Mo The Land Rover 90 - Many are called, few are chosen. 50 Shades of Pennine Grey |
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13th Jun 2016 10:07am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8099  
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i have run an engel 40L for just over 48hrs without starting engine off a numa 27CXF split charge. Cheers
James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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13th Jun 2016 11:32am |
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| DC101 Member Since: 01 Jul 2012 Location: Pudsey, West Yorkshire Posts: 260
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Thanks All.
My fridge is also well insulated with a jacket, so optimistic as long as I can sort out my voltage issues' |
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13th Jun 2016 8:30pm |
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| Mdm Member Since: 11 Sep 2013 Location: Sunny Lancashire Posts: 1630
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simple things like a full fridge and wooly jacket on it plus plenty of ventilation around it all make its life easier
inside a landy with the windows up its surprising how much heat it generates overnight in use. we ran ours at the big outdoor event for 4 days with a fair amount of use inc beer refills etc on a leisure battery and the 2nd fridge off a red top optima without any issue. we tried to cheaper two different brands Ģ30-50 solar panels which put enough power in to keep them both working fine. so if you only want to run 1 battery i would use cheap solar panel to charge it up during the day other wise a split charge and 3nd battery that way you can guarantee the vehicle will start |
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13th Jun 2016 8:45pm |
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| xpertoftheseas Member Since: 05 Jan 2016 Location: Salisbury, Wilts Posts: 164 
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I would agree with everyone here, most likely an undersized cable. However it is worth checking the voltage at the battery of the Defender when you turn the fridge on to eliminate the possibility of it being the battery. Its a quick check to do before installing a heavier gauge cable. My 10th Land Rover, but my first Defender.
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13th Jun 2016 11:44pm |
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