Lashru, also be aware that your fridge is a high consumer of electricity.? The specs say it uses 34 amp hours in 24 hours time, with temps in the 70s.? That will almost double if the temps are in the 90s. With your 77 ah battery, you can only safely run your fridge for one night, since you don't want to discharge lead acid batteries below 50%.
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For folks like yourself with a compressor fridge, you're a good candidate for a lifepo4 battery, 200 watts of solar, and a 50 amp or more converter for fast charging.
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