Discontinued Marine Batteries & Power Cells

A marine battery and a standard car battery may look similar, but they serve different purposes. Marine batteries are specifically designed for use on boats and other watercraft. They are built to withstand the harsh marine environment, including moisture, vibrations, and temperature fluctuations. Marine batteries are deep-cycle batteries, meaning they can be discharged and recharged repeatedly without suffering damage. In contrast, car batteries, also known as starting batteries, are designed to deliver short bursts of high current to start an engine. They are not suitable for the continuous, long-term power demands of marine accessories like trolling motors or onboard electronics.

There are three primary types of marine batteries: starting batteries, dual-purpose batteries, and deep-cycle batteries. Starting batteries are designed to provide a burst of high current to start the engine and have limited deep cycling capability. Dual-purpose batteries offer a compromise between starting and deep-cycle capabilities, making them suitable for both engine starting and powering accessories. Deep-cycle batteries are specifically designed for continuous, deep discharges and recharges, making them ideal for marine accessories like trolling motors and onboard electronics.

Choosing the right marine battery depends on your boat's size, the accessories you use, and your boating habits. If you have a smaller boat with minimal accessories, a starting battery may suffice. For boats with a mix of accessories and moderate power demands, a dual-purpose battery is a good choice. If you have a larger boat with high power demands from accessories like trolling motors, fishfinders, and refrigeration, a deep-cycle battery or a combination of deep-cycle batteries may be necessary. Consider factors like capacity (measured in ampere-hours or Ah), reserve capacity, and compatibility with your boat's charging system.

Proper maintenance is essential for maximizing the lifespan and performance of your marine battery. Regularly check the battery's water level (for flooded lead-acid batteries) and top it off with distilled water if needed. Keep the battery and its terminals clean and free from corrosion. Ensure that your boat's charging system is working correctly and use an appropriate marine battery charger to recharge the battery after use. It's also a good practice to store your marine battery in a cool, dry place when not in use, especially during the off-season, and disconnect it to prevent parasitic drains.

While it's possible to use a standard car battery temporarily in a marine application, it's not recommended for long-term use. Car batteries are not built to withstand the unique challenges of the marine environment, including moisture and vibrations. They also lack the deep-cycle capability required to power marine accessories continuously. Using a car battery on a boat may lead to premature failure and unreliable performance. It's safer and more practical to invest in a marine-specific battery that is designed to meet the demands of boating and ensure the reliability of your onboard systems.