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Likely also improved tolerances in the compressor section.
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@JCruse you probably already know this but, at least with the Victron 100/30, it will not initiate current flow if the battery to PV is <5v. Once initiated/flowing it will flow at 1v differential.
Going to need some improved efficiency to run this:
View attachment 1408871
I think this is a mid 80's-90's Norcold/Engel/Sawafuji. Says Made in Japan by Sawafuji. A guy had it on Craig's for $100 and I've been wanting a second fridge. It looks barely used and the guy I got it from said his parents had it for a few years in an RV.
Interestingly, while the modern Engel version of the same runs at 2.7 amps when running, this one runs at 5 amps. So it's a bit of a power hog. @TrickyT though it might be due to improved magnets over time. Cools perfectly well though on both 120V AC and 12 volts DC.
Yes I know, I kept seeing 14V ( from 13.2) flashing by as the readout went wildly up and down, but why pull it down to where it "knows" it's going to switch itself off? Bad design or do they all do that (MPPT's)?
NICE score! I would have snatched that up real fast.
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They don't all do that and I'll be curious to duplicate this issue. Is it possibly changing states, like absorb to float or something similar? It's really tough to say with a battery that is 100% full.
It was $100 which I thought was a decent price since I didn't know if it really cooled, only that the motor ran. But in brief testing, I can tell it cools just fine.
^ yeah, but it is 'proven' there's no need for an MPPT controller when a PWM will do just fine Yes,
Found that same controller for $89 on ebay (BT extra)
Well, like I said, if you go around to see if people have solar panels left. Just one piece of a type you normally put on a roof by the dozens. And especially if it is an older type, that does not go well with new ones (other size or amount of Watt), then it's gonna be cheap.
Over here I noticed I could sell 2 x 50W panels for a 12V system, for more than I had bought them. I used them and sold them for more. Anything with boats or campers and 12V systems was relatively expensive. While these big solar panels, let's say a 195W panel, could be bought for half the money.
That's what is great about this Victron controller, it made the total solution cheaper.
My main usage of the Bluetooth dongle is to be able to modify shut-off voltage while on the trip. And see if the installation performs as desired, every once in a while.
But on normal roadtrips, I don't check it because I have plenty of power. Also without charging by driving.