Farkles, Gear & Accessories > Camping Gear and Touring
36 litre Fridge Freezer
alans1100:
I noticed one of these in our local newsagent (it's also a toy and jaycar store) https://www.techbrands.com/store/product/gh1640.aspx
Runs on 12 volt or 240 volt power
I'm not up on all the conversion stuff but it be would nice to have this compared to our 50L ice box.
Should not be an issue during the day but overnight maybe different
So we start with an 80W solar panel via a charge controller into a 12 volt 20 amp hour deep cycle battery.
Fridge average consumption is 0.2 kwh
Continuous Power equals 45W
Either 12 or 24 volt battery
Current draw equals 1.875A, 3.75A - two independant zones - one of which can be turned off.
Does this mean a 20 amp hour battery will run this for either 20 / 3.75 = 5.333 hours or 20 / 1.875 = 10.667 hours ?
Brock:
The tow bar looks dodgey, and the wheels dont look they could take 110Ks for too long
Shillas:
:rofl
CallMeSteve:
Alan, I might be way off, but the way I'd read this is:
When running from 12V it draws 3.75A, when running from 24V it draws 1.875A. Each of these scenarios equals the specified 45W operating power.
Those figures are most likely to be the power draw while the unit is actively cooling. Since it runs off a thermostat it will settle down to an intermittent on/off duty cycle dependent on how much you open the lid and how much heat leaks through the insulation.
I think a useful figure is their estimate of 200Wh per 24 hours, which corresponds to an average of 8.3W, which off a 12V battery is 0.7A averaged over the 24 hour period. In other words they are estimating that it will run with a steady state duty cycle of approx 20% on / 80% off.
That suggests to me that you could expect a 12V 20 Amp-Hour battery to run it for something like 28 hours.
Bodø:
--- Quote from: Brock on April 12, 2019, 04:54:24 PM ---The tow bar looks dodgey, and the wheels dont look they could take 110Ks for too long
--- End quote ---
:rofl
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