I have a Frigoboat with a keel cooler
. It works great ... but
I have noticed that regardless of the outside weather
, the unit runs 15 mninutes on, then 15 minutes off. When I turned up the temp slightly, it appeared to run about 15 minutes on and 25-30 minutes off.
I know it has a compressor
, but I'm curious as to why it runs more based on time, rather than temperature.
Even though I have "greatly", increased the insulation(both inside & outside, the timing of the run/off never changed 15 on/15 off, except for my little experiment(a one time deal) ... things do freeze faster now, but still.
I don't need a freezer(freezer's very small anyway), I just want a good, VERY ENERGY EFFICIENT cooler.
Another issue with the 15 on/15 off(even with all the extra insulation), is the fridge has a dedicated large, 12 volt battery
... very large & very, very heavy and set in such a way I can't see the ratings.
only charges when the boat is plugged in and I'd like to allow my 35 amp alternator
to charge the battery(it "re" charges my engine
battery within 15 minutes or so, and my house battery only has LED lights
to power(so far it's never shown, that I can see, a needed charge).
I wonder if I can "buddy up", the charging
of the FrigoBoat battery on long trips into the wind(under power), and what issues I should particularly address.