Yes, Rocket was low by a factor of 7. My guess is he used a 1 amp draw rather than the 7 amps the fridge takes. So his 30AH battery really needs to be 210AH, a massive capacity to fit into a Westy. Mark
Karl wrote: > I calculate that usage at 33.6 a/h per day. 24 x 7 = 168 , divide by .2 > = 33.6. > > Rocket J Squirrel wrote: >> Hi Malcolm. >> >> A 24-hour run of your refrigerator, if it draws 7A, and has a duty cycle >> of 2/10 (two minutes out of ten) will consume 4.8 amp-hours (Ah) per day. >> So if your numbers are correct, and if you wanted to never discharge your >> deep-cycle batteries too deeply (say never less than 80% discharged so >> they last longer), then a five-day run of (call it) 5Ah per day would >> require 25Ah, and a battery with a 30Ah rating should do the job. > |
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