The Renogy at $109 works perfect for me, and for thousands of other guys.
https://www.amazon.com/s?k=dc+to+dc+charger&crid=30I90SBZIC8II&sprefix=dc+to+dc+charger%2Caps%2C456&ref=nb_sb_noss_1
I rather not overload my older alternator with a 40 amp unit.
https://www.amazon.com/s?k=dc+to+dc+charger&crid=30I90SBZIC8II&sprefix=dc+to+dc+charger%2Caps%2C456&ref=nb_sb_noss_1
I rather not overload my older alternator with a 40 amp unit.


![[-]](https://vandwellerforum.com/images/collapse.png)