New battery charger needed....
Some times I do dumb things. Take this summer. One weekend I forgot to pull the plug in my boat. After about a week of sitting with 12 inches of water in the back of my boat, my current battery charger went kaput. I need a new one and some advice on what to get. I am running 3 batteries but only 12 volts. I have one cranking battery that also powers my sonar units. I have 2 trolling batteries (in parallel 12 volt configuration). Do I treat the 2 parallel bats as one bank, or should I give each battery a dedicated bank? 2 bank charger or three? 2x10 amp or 3x5 amp or something else altogether?