Monday, Dec 31, 2018 at 17:58
John
Not enough basic information of intended use supplied to us. More is better.
The fridge, ifnew, will have an internal fan to cool the condenser. That helps.
What size
Engel? depending on size, they draw varying amounts when running.
What sized battery do you have?
What is it's condition, new or used, that equates to different amounts of stored charge regarding size and condition of battery.
Is the fridge to be run as a fridge, ie around 4 degrees or colder OR as a freezer eve colder still and much more use of battery.
If only in 30 degree days in shade, then the
Engel will use a certain mount of power.
If used in a vehicle on 30 degree days inside a vehicle is 40 ++ or more inside, and the poor
Engel will be running full time and constantly using battery. Flat plenty quick.
If camped you can insulate the fridge from heat by covering it with a sleeping bag, only the box bit not the working bits and vent areas. That will slow down absorbed heat even with a proprietary fridge cover fitted.
My Old
grey Engel will run as a fridge for around 1 1/2 to nearly 2 days without ruining a 105 ah AGM battery by discharging too far. If the battery gets down to 12v then nearly all it's so called rated capacity is depleted. You DO NOT want the battery to ever get flattened to dead, it will kill it, then it will have almost no capacity or is just dead.
The cape isn't a two day trip, so how do you propose to recharge the AGM deep cycle battery? That should seriously be considered,
A vehicle will bulk charge, ie major amount in a relatively short time and the solar panel and regulator will assist/maintain if of sufficient size and amp output. The panel ratings of amps sound impressive but you would need twice the solar amp energy to be realistic. ie, only believe it puts out half of what it claims.
AnswerID:
622917