Originally Posted by rbryan4
3.2 amps draw on 12v doesn't seem out of the ordinary.
That's not a current draw of 3.2 amps, it is
Energy consumption 12V @amb temp 25°C (Ah/24h) 3.2
... which means 3.2 amp-hour consumption over a 24-hour period, or 0.13 amps (130 mA) average... just enough to run the electronics.
The other 12-volt spec is
... so at peak it can use 170 watts or over 14 amps. From this spec, the brochure
available from the same web page, and the manual
, this appears to be a three-way unit (capable of cooling on your choice of AC, DC, and propane power); the 3.2Ah/day number would be just for the controls, not cooling on DC power. 170 watts for the DC heating element is reasonable for this size of refrigerator; the AC heating element for this model is 190 watts. The 22 grams/hour propane burn rate corresponds to about 280 watts, but the propane heater won't be perfectly efficient or transfer the heat to the cooling unit as effectively as the electric heaters, so again the 170 watts (14 amps) seems reasonable.