Originally Posted by Dweibel
I have a 2010 boat, just added a stereo setup with about an extra 1000 watts and just started having battery issues running hte stereo over 15 minutes with the boat off. Was thinking of replacing one battery with a higher powered one? Anybody have thoughts or suggestions, or should I just get two new regular batteries, as they are 3 years / 300 hours old
I would have them tested. After three years, you are on borrowed time IMO. Next, if you have a 2 batteries and both are going dead after playing the stereo at anchor, then you need to look into how the battery system is configured. If you dont have a dual battery setup, I would suggest doing one. This would allow you to isolate a battery for restarting the engine after playing the stereo at anchor.