6. Running the Battery Down
What It Does: Batteries are made to burn while starting the engine and running lights, engine electronics, marine electronics and stereos, but most batteries are destroyed at the dock during storage. Keep an automatic charger on the batteries to keep them fresh.
Result Of Neglect: Batteries that should last three years won’t last one year if you fully discharge them even a few times a season.
Cost To Perform: Add a Pro- Mariner 20 single-cell charger ($170, overtons.com) to keep your starting battery fresh and conditioned. Plug it in whenever your boat is in storage to keep it topped off.
Penalty: Don’t condition-charge and you’ll buy a new battery every season. Keep batteries charged and save the cost of the charger over three years — and end those embarrassing moments at the dock.