96 Liberty XL40′ 12v Classic

It’s been 4 yrs and 18,000 miles since I switched from 3 Lifeline AGMs to 3 Renogy Lithium/Lifepo4 house batteries. I have had zero issues with them or my simple easy inexpensive drop-in install.

I recently did a capacity test on them, and they still have 100% capacity.

How do I keep them charged?

1) with dual Magnum…

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