Jon H 1 Posted October 26, 2022 Share Posted October 26, 2022 Hi. I have just bought a Carpenter 29 and I plan to install solar. It currently charges the starter and house batteries (both single lead acid) from the alternator using what appears to be a simple relay that connects them in parallel when the engine is running. I would like to charge both batteries from solar and plan to use a dual MPPT regulator such as the EPever Duoracer https://aasolar.co.nz/product/duoracer-series-mppt-dual-battery-solar-charge-controller-10-30a-by-epever/ Will it cause a problem for the solar when the relay connects the batteries in parallel whilst the engine is running? Cheers Quote Link to post Share on other sites
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