Re: minn kota onboard charger
If you have two batteries you need a way to charge both. Yes the stating will likely be charged by your motor. If when you retreive you leave all the radio on the Gps, pump the bilge and raise and lower your outdrive your starting battery is no longer fully charge. I like to charge as soon as I get home and it is the best thing you can do to make your batteries last a long time. When I get home I hook up the charger unload all the gear, clean the fish, cover the boat, check the charger to make sure fully charged then disconnect charger.<br /><br />Even a small group 24 deep cycle discharged can take 18 hours to fully charge with a 10 amp automatic charger. A two bank 10 amp charger will do the job nicely. I prefer a single 10 amp or more automatic charger and charge thru a battery isolator. I have had a lot of good luck with my batteries as mever had a battery that did not last 6 years. You need to charge all your batteries at least once a month year round.<br /><br />On My boat batteries charge thru my battery isolator. The engines charges both batteries from the 35 amp alternator while engine running. At home I have a plug up front to plug my 10 automatic battery charger into which will charge both batteries thru the same battery isolator my engine uses. From My truck also have a 12 volt charge line that runs back to the trailer and can be plugged into the plug up front on my boat to charge the batteries from my trucks 65 amp alternator while going down the road.