Forum Discussion
Gdetrailer
Oct 14, 2014Explorer III
Almot wrote:horton333 wrote:
The power numbers are pretty interesting, you may be convincing me to do the same as it likely also is going to work better as a fridge too.
My fridge is gone, like $1,000 to fix. I have been using one of those 12 Volt coolers when dry camping while 'I figure it out'.
You better measure the cabinet. In trailers it's more difficult than in 5-ers. My cabinet with 6cf propane fridge, for example, has inside W=23.5", D=25", which is few inches less than that Wirlpool. The height is also a problem, with converter under the fridge.
Those energy numbers are interesting. It doesn't happen very often that manufacturer can beat their own specs by such a margin. I'm not questioning the OP, it's just that all the previous res frig users reported the numbers more-less in line with the specs, i.e. 90-100 AH a day. Maybe something big happened in the industry. Those boxes are getting more efficient as time goes by.
Coolers are terrible things. They draw few times more, per cu.ft, than normal fridges. Portable top-loading 12V fridges like Engel are more efficient but the cost is prohibitive.
The OPs energy numbers and experience is correct, pretty much very typical of apartment sized fridges. I have a 10cu ft Haier and it basically is the same fridge as the OPs whirlpool. I measured my fridge current draw of .8A at 120V which works out as 96W of power. Fridge runs about 20 minutes per hr with ambient temps of 70F-100F, basically my fridge runs 8hrs out of 24hrs and uses about .768Kwhrs of energy for one day.. The name plate data on my fridge states 1.1A draw but my actual measured draw was less.
The OP can actually save more battery capacity if their inverter has a power save mode.
The inverter I use for my Haier 10 cu ft fridge is a Tripplite PV1250 which has what they call a load sense feature. The load sense detects if there is any AC load demand. If a demand is detected the inverter turns on the output stage. Once the AC load is disconnected the inverter shuts down the output stage . This load sense feature saves me about 24Ahr worth of battery capacity!
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