I am looking at getting a mini-refrigerator for the boat. Does anyone know how many batteries I will need and how long they will last before I have to recharge them?
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refer
I converted my 6 cu ft box using the guts from a dorm size refrigerator. The label says it draws 1 amp @ 120v, which equates to about 10 amps @ 12 v DC. If it is "on" 60% of the time, that would take 6 amp hours per hour from the battery. If you have an 80 amp hour battery, and want to limit the discharge to 40% of battery capacity, that leaves 48 amp hours available - so 48/6=8 hours available run time. If you are going to run an AC unit by means of an inverter, the start up load can be 3 or 4 times the running losd, and the inverter has to be sized for this load. I use a 1000 watt with a 1400 peak capacity inverter.
I converted my 6 cu ft box using the guts from a dorm size refrigerator. The label says it draws 1 amp @ 120v, which equates to about 10 amps @ 12 v DC. If it is "on" 60% of the time, that would take 6 amp hours per hour from the battery. If you have an 80 amp hour battery, and want to limit the discharge to 40% of battery capacity, that leaves 48 amp hours available - so 48/6=8 hours available run time. If you are going to run an AC unit by means of an inverter, the start up load can be 3 or 4 times the running losd, and the inverter has to be sized for this load. I use a 1000 watt with a 1400 peak capacity inverter.
Tony, you raise more questions...
This frig, is it AC or DC? If DC how many amps does it require per hour to operate? Do you have batteries on the boat now and their amp hour rating? Does your boat have a charging system to keep your batteries up? Terry
This frig, is it AC or DC? If DC how many amps does it require per hour to operate? Do you have batteries on the boat now and their amp hour rating? Does your boat have a charging system to keep your batteries up? Terry
Take a look at Novakool R3800 1.5 amp/hr @12v
thats alot better than the 120v dorm refrigirator. good luck abe
thats alot better than the 120v dorm refrigirator. good luck abe
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