waeco power

My 80 uses a great variety of power. Over summer I was away in 40 plus heat and the bloody thing ran constantly in the heat of the day. It was using 80 amps just during the daylight hours.

Conversely, last weekend away at Little Desert it was bloody cold, below 0 overnight, and it used bugger all power.

I guage it by checking battery voltage, which is not 100% accurate but a fair indication.

Jimbo ,gauge mine thru Steca solar regulator , 64 is the average per 24hr over the last 2yrs , the primary word being "average"

Sorry Alloy,

I read it to mean 64 amps at any time.

What is the range, eg the most used in summer and the least in winter?

Jimbo ,the most power usage was the one and only time we used the Waeco as all fridge , consumption whent to 85amps per 24hr over a 3day period ,middle of summer 38c fridge running constantly to keep 2/4c , following w/end used as fridge and freezer with fridge section at 2/4c back to "normal" 64amps per 24hr ,,
least amount ever used was at Stanthorpe QLD this winter , 24amps per 24hr ,daytime temp max of 9c and nightime low of -6c .

Alloy,

That's very bloody interesting stuff. I've always used mine as all fridge until last weekend when we needed the freezer. I got the impression it was using less power than normal, but thought that was just due to the cold weather.

Perhaps with a cold "bank" of frozen goods it helps keep things colder for less draw? We loaded it with pre frozen goods before leaving.

Your thoughts?

Jimbo ,cold "bank" possibly ,all I know is that the compressor runs less when used as fridge and freezer with less internal temp variations ,,frozen section and items would act similar to a "bank" as in euteric refridgeration systems ,, Nudie now member no1 would/should be able to better explain ,

As stated, the added "frozen" food component does assist to keep the temperature lower, as in the 'eutectnic' storage principal....

A Fridge/Freezer combination will use less power than a fridge of the 'exact' same type and capacity ... IF, the freezer is full of "frozen" food...

Not logical ?? litres per hr is a industry standard for stationary engines and boat engine consumption is measured as ?? lt per hr at x times revs ,or in ships as per ton per time x revolution.

Mike, if anything is not logical then its your statement "Amphours per hour".
As you say, Amps is an instantaneous measurement, if you must have a watery similie then it would be 'litres'.
If you measure a certain Amp draw over hourly intervals then it is expressed as 'Amphours'.
Similarily, battery capacity is expressed as 'Amphours', a certain number of Amps can be discharged over a certain time.
There is NO 'per hour' associated with the term Amphour since it already has a time component.
Klaus

Hi Klaus - I'm not suggesting associating "per hour" with a volume of current flow (amphours). I am saying "Average Amps" FLOW is equivalent to "Amphours per hour" FLOW.

5 "litres per hour" FLOW takes 5 "litres" VOLUME out of the tank after an hour.

If a load draws 5 "amps" FLOW this will take 5 "amphours" VOLUME out of the battery after an hour.

Therefore 5 "amps" FLOW can also be described as 5 "amphours per hour" FLOW. Dimensional analysis shows that

The only reason I suggest that people think of electrical flow as "amphours per hour" is because people think of FLOW in terms of "per hour" e.g. litres per hour.

your right mike us simple people do!.cheers