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Finding Your Batteries

Boat and Marine Batteries

How to choose the right marine battery for your boat

Get Ready for Boating Season with Interstate® Marine Batteries

As the sun shines on the water and boats set sail, the right battery can make or break your perfect day on the waves. Whether you’re a seasoned mariner or a weekend adventurer, understanding how boat and marine batteries work and which one to choose for your watercraft and recreational vehicles, is essential for a successful outing.

Interstate delivers the preferred brand of high-quality batteries to power your boat's navigation devices, lights and engine. Whether you need a deep-cycle marine battery, trolling motor battery, starting battery or both, we have you covered with our lineup of high-quality products built to withstand the harsh conditions of the open water, including vibration and moisture. Get the durability and longevity you want when the water calls with Interstate.

Let us help you find the right battery for your marine application.

Explore Interstate Marine Batteries

When you're out on the water, you need a reliable power source. Marine batteries are designed for this purpose, powering everything from the engine to your boat's electronics. When it comes to reliable marine power, Interstate has the marine battery you need:

  1. Starting Batteries: Perfect for a quick burst of energy to start the motor.
  2. Deep-Cycle Batteries: Ideal for providing power over an extended period, perfect for trolling motors.
  3. Dual-Purpose Batteries: A versatile choice suitable for both starting the engine and powering electronics.
From starting engines to powering gadgets, our battery lineup ensures that your boat stays ready for the water.

Types of Marine Batteries

Speed boat in water with Interstate Marine Starting Battery overlaid on photograph

Starting Marine Batteries

Marine starting batteries (or cranking batteries) are just like the battery you have in your car. Their purpose is to give a burst of power to your engine when you start your boat. Once the engine starts, the alternator takes over to provide power and recharge the battery.

Starting batteries are perfect for getting your boat going and are built to tackle the severe conditions out on the water. Still, they cannot handle continuous or frequent deep discharge/recharge cycles. Therefore, they should not be used for trolling motors or powering accessories. Draining a starting marine battery can shorten its lifespan.

Whether sailing the ocean or ripping it up in a motorboat, Interstate has a wide selection of powerful marine starting batteries built to withstand the most rugged marine conditions. Our marine starting batteries come with a 12-month free replacement warranty.

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Boat in water with Interstate Marine Deep Cycle Battery and Lithium Battery overlaid on photo

Deep-Cycle Marine Batteries

Need power for long trips? Marine deep-cycle batteries are perfect for powering your trolling motor and other accessories for extended periods. For longest time on the water, check out our lithium marine batteries. These lightweight batteries can hold a charge for years without maintenance and recharge 3X faster than lead-acid batteries. They deliver consistent performance with each charge and last 10 times longer than AGM batteries.

Deep-cycle batteries are perfect for extended use because they can be drained and recharged many times over. They’re ideal for powering your boat and all its accessories, whether your engine is running or not. Whether you're running electrical power to onboard accessories or just taking your recreational vehicle out on the water, these batteries deliver the juice you need over extended periods. Our marine deep-cycle batteries are the most popular line of marine batteries and offer robust and reliable power.

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Boat in water with Interstate Marine Dual Purpose Battery and Lithium battery overlaid on photo

Dual-Purpose Marine Batteries

For smaller boats with limited space, marine dual-purpose batteries offer the best of both worlds. A dual-purpose marine battery offers you all the cranking power of a traditional starting battery plus the continuous discharge of a deep-cycle battery. It is ideal for compact settings on smaller vessels that lack room in the battery compartment for two separate batteries, without skimping on power.

Initially developed for military tanks and submarines, our marine absorbed glass-mat (AGM) battery with Pure Matrix power packs the staying power of our best deep-cycle battery with the high-cranking performance your boat needs. With pure, non-alloy lead and the most efficient plate design in the industry, this battery puts the most advanced technology on your side. With faster recharging and two times the overall life of a flooded deep-cycle battery, the Pure Matrix AGM stays ready for all your fishing weekends.

We are so confident in our Interstate marine Pure Matrix AGM battery that we back it with a three-year free replacement warranty.

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Powersports Battery

Personal Watercraft & Jet ski Batteries

Personal watercraft batteries are built tough to handle the rigors of the marine environment. Their robust construction fights against wave-induced vibes and shocks that could harm normal batteries, ensuring a long-lasting power supply for your water adventures. Interstate has a wide selection of batteries compatible with almost any recreational watercraft. Our main types of batteries for powersports and jet skis include:

  • Factory-activated AGM powersports battery: Our factory-activated AGM batteries are ideal for all sorts of personal watercraft. Easy to install, these batteries come fully charged, sealed and ready to use. Because there's no risk of leakage, these batteries can be mounted at almost any angle. Plus, there's no need to check the water levels. Just plug and play!
  • AGM powersports battery: Our AGM powersports batteries feature firmly sealed battery housings, acid packs and spill-proof technology for safer use. Once activated, these batteries can be mounted at almost any angle without spilling and are vibration resistant. Plus, they're maintenance-free, meaning you don't have to check or refill the water levels.
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Marine M-Line Battery

M-Line Marine Batteries

When it comes to affordable power on the water, the Interstate Batteries M-Line is sure to have the right marine battery for you. These marine batteries deliver the affordable reliable power you'd expect from Interstate. And they're backed by the quality and service you've grown to love all at a price you can enjoy.

Get the right power and right price with M-Line marine starting and deep-cycle batteries. M-Line batteries are available at select Interstate dealers.

Ask your local dealer about Interstate marine batteries today. Let them help you find the correct battery for your boat or watercraft.
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Trust Interstate for the Reliable Marine Battery Advice

What's the difference between a marine battery and a regular battery?

Marine batteries, unlike basic types of automotive batteries, are crafted to withstand harsh marine conditions. They endure the jolts and vibration from waves, ensuring performance where car batteries might fail. Because of this robust design, marine batteries often cost more than car batteries. Their job is not just to start an engine; they provide ongoing power to various onboard systems, making them indispensable for any seafarer.

 How long will a marine battery last?

The battery life of a marine battery depends on the type and maintenance. Lithium marine batteries stand out, lasting up to 10 years and offering around 3,000 life cycles. This is significantly longer compared to traditional lead-acid batteries. With proper care, a marine battery can serve you efficiently for many years, making your investment worthwhile. Recharge your lithium battery with the correct charger and consider investing in a boat battery maintainer to extend your lead-acid battery service life.

 What type of battery is best for marine use?

Choosing the right battery size and type involves understanding your marine applications and needs. Marine starting batteries are perfect for giving quick bursts of energy to start engines. Deep-cycle batteries excel at providing sustained power for appliances over extended periods. If you need versatility, dual-purpose marine batteries combine both starting and deep-cycle functions, offering a dual service for your boat's needs.

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Finding Your Batteries

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