Just for you guys info , after the unit charged the batt's I unpluged the unit left it over night , then checked the battery's crank battery was 12.79 and both trolling battery were 12.91 these are walmark batterys ,never seen this high before and I check em all the time with my fluke. crank battery is a 24 . trolling 27 series. all three are over a year old . Not trying to sell anything , just the facts LOL