I bought this one for my travel trailer. After spending $$$$ on batteries that went dead, even with a cutoff switch. Has worked flawlessly keeping the batteries charged. Wished I had done it sooner!
https://www.amazon.com/gp/product/B07TNFPFZ8/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
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"Prayer isn't a parachute. It's a compass. It doesn't save you from the storm. It guides you through it." - Bear Grylls
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