Guys, wanted to run this by the experts. My 2014 xplorer with 24v trolling motor...batteries will not take a charge with the factory onboard charger. Boat lives in the basement and only had it out a couple of times last year...health problems. Charger manual states it will not charge if voltage detected is less than 4v, checked and they both read aprox 2v. and not receiving a charge, blinking red lights on charger, cranking battery OK. Guilty of not keep batteries on charger. Question, should I just replace both and keep them charged or hook them up to another charger and hope they don't die on me quickly. Don't mind replacing them if it guarantees my next fishing trip will not give me any surprises. Oh yeah, I got money I've never even spent yet...ha ha Thanks for any help you guys can give...