Being a first time boat owner, I'm a bit confused as to how long should the battery last with the engine off but, let's say, a stereo on. I have a 2 battery set up with selector switch. I see people all the time with their stereos on while anchored on a beach. I can't leave the stereo or anything else on for more than 10 minutes before the battery fails and the second battery needs to be switched on. They'll recharge just fine after the engine turns on again. It just seems that if I leave the stereo or the fishfinder on for a few minutes it will deplete the battery. Is this normal or should I call the dealer?
Thanks!
Thanks!