I have a Samlex 30a PWM charge controller and it maintains my four 6v G.C. batteries fine. Other than adding water every couple months I never really concern myself with anything solar/battery related. Been working this way for nearly 5 years now.
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V465
2015 Creek Side 20fq, 450 Watts of Samlex Solar,
2013 GMC Denali, Duramax, Retired in 2021
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