marine and boats batteries

Marine batteries include those found on boats and water sport vehicles. Boat batteries must accomplish two tasks: start the engine, and provide continuous power to electronics while the boat is idle. Water sport vehicles such as the Jet Ski must be dual purpose batteries that are able to withstand impact and vibration from waves. Deep Cycle Wet Cell and SLA batteries are most commonly used to provide power to these vehicles.


In marine applications, lead-acid batteries provide the best compromise between functionality and price. Deep cycle lead-acid batteries are used on boats because they are powerful enough to be used as a cranking battery, but can also discharge more deeply in order to power any on-board electronics after the boat is idle. Deep cycle boat batteries can last for an extended period of time if not used regularly. AGM batteries will last longer in situations where boats are used seasonally as they have lower rates of self discharge. Temperature is not often a major contributing factor when deciding on marine batteries, as boats are often used in warmer weather. Spillage is also not generally a major concern in boats that contain a secure battery box.

Most common types of marine batteries include:

  • Deep Cycle Wet Cell
  • AGM
  • Gel Cell

Jet Ski's and other water sport vehicles utilize SLA batteries, much like high-impact sport vehicles, such as snowmobiles, and ATV. Flooded batteries are prone to spillage, and this can be an issue when encountering waves. Jet Ski batteries must be dual purpose, both a cranking and cycling battery. The smaller size, power requirements, and sealed nature of the SLA battery make it ideal for this application. Temperature conditions are generally not a major concern, as water sport vehicles are, like boats, typically used in warmer weather.


  • 12V Deep Cycle Wet Cell or AGM in boats
  • 12V AGM or Gel Cell in Jet Ski's and other water sport vehicles
  • Deep Cycle batteries are used to start the boat and provide power to on-board electronics
  • Must be properly secured on the boat to prevent spillage and corrosion
  • Regular maintenance is required on boat batteries, especially in the off seasons
  • Batteries can last 3-5 years or more
  • Batteries can be sold for scrap when the go bad



  • New and Used Boat Shops
  • New and Used Water Sport Vehicle Shops
  • Boat Repair Shops
  • Water Sport Vehicle Repair Shops
  • Marina Maintenance Departments
  • Battery Core Buyers
  • Scrap Metal Recycling Yards
  • Marine Salvage Yards
  • Individuals