A lead-acid battery steadily declines in ... to the trolling motor with a circuit-breaker switch in the red positive line. Forgo that circuit breaker at your peril, but be certain it is off during the ...

prototype Gemini dual chemistry battery from Our Next Energy for BMW iX LFP cells use none of those materials, instead relying on iron and phosphate (PO4) for the cathode. The downside of LFP is ...