Hi all i am a new boat owner. I have a 1999 Horizon 220. I bought it in Feb of this year. Everything has been going great untill the 4th of July weekend while on a week vacation on the lake i noticed that my batteries werent recharging while out on the water. I figured it was the alternator so I charged the battiers overnight every night so we can spend the day on the water. Onc ei came home i had my mechanic check out the alternator and it tested fine. The gentlman i bought the boat from replaced both batteries for me ( so he said). They look like new batteries so i am assuming its not the batteries. I did however replace just the radio head unit and nothing else. Im not sure if the new radio is causing the issue. So i disconnected the radio and have th ebatteries charging untill next weekend when i take the boat out again. I hope that by disconnecting the new radio it fixes the problem. In the mean time has anyone else experienced an issue where there batteries didnt recharge and alternator tested out ok?
Please Advise.
