48 hours in with the Engel: 12.28v (arguably around 40% discharged)
End of test. I'm going to call that just about the same as the ARB given that I didn't use a separate thermometer to "set" intended internal temperature. I relied on the reading of the ARB and a small mercury thermometer in the...
Ok, 24 hours in with the Engel MR040 I'm at 12.51v
I get the general feeling that it cycles on and off more often than the ARB but stays running for a shorter period of time. I don't have any actual stats to back this up though.
Fully recharged with a 4 amp AC charger in about 14 hours.
Initial voltage right after charging: 13.09. I'll remeasure again later to see where it settles.
So I guess I'm getting to around 50% on the battery. That's just about 2 full days, inside at about 68 degrees F, opening the fridge 10 or so times, 3 quarts of water in the fridge with 2 of them removed at about the 36 hour mark.
Far from scientific but I'm quite happy knowing I can eek out 2...
The two ports are both cigarette lighter type.... One is the hella type which is a smaller and the cigar is a regular cigarette lighter. I'm plugged into the cigarette lighter port for the ARB fridge.
I'm taking my readings when the fridge has been off for a few minutes. And I turn off power to...
12.45 on a voltmeter at 21.5 hours. Fridge opened 6 times - pulled all 3 bottles in and out a couple of times. National Luna still reports 100% (weird or expected?)
Not kicking a dead horse at all. I have considered a suitcase system for easy portability. We'll see how things work out this season - I'm not going to be out in the wild so much that I can't run the truck if need be.
I'm running a test now. 15 hours in. ARB running at 34 degrees, I've opened the lid 4 times so far for about 20-30 seconds each time to simulate some random usage. There are 3 one quart bottles of water in the fridge. I ran it up to temp on AC before I started with the battery. It's in the house...