In a youth organization that I am part of we are building a traveling stand alone system, which will be put up on various fairs and music festivals. On one of the festivals there is a wish that we can charge 12V car batteries for people, that they can in turn use for playing music in their camps.
We will have a 1050Ah 12V battery bank. It is actually much bigger than what we wanted, but we got it extremely cheap from a bankrupt company.
We will have smth like 1500W solar panels.
How should we go about charging other peoples batteries?
I guess I should look for a 12V to 12V charge controller? But does that even exist?
I know that there are 12V to 12V solar chargers, but I am not sure how they work from just one battery to another. I guess a 12V battery to 12V battery should be able to lift the voltage.
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