Wednesday, Apr 20, 2022 at 07:42
Hi Kris,
Not being able to fully charge your batteries in a single day is fraught with issues. You need to remember that if you cannot put back into your batteries what you have taken out, you will continue to go backwards as far as SOC is concerned. If you are moving every day and the vehicle is charging the batteries as
well, you may be OK. However, if you are stationary, and not able to fully charge using
solar, and do not have another method of charging such as a generator, then eventually you will have “flat” batteries. Remember if you are still running electrical appliances such as a compressor fridge, you are still drawing from the batteries whilst you are charging.
As far as Peter’s comment regarding
solar capacity is concerned, yes he is correct in that you only need to be able to replace what you took out, plus what you are continuing to take out whilst charging. However, you cannot guarantee when you will have enough direct sunlight, or for how long you have direct sunlight, or if you have your panels at the appropriate angle to the sun. That is why the majority of
solar experts, suggest that double the watts of
solar per battery AmpHr is the preferred methodology.
Macca.
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