Marine Batteries
Our NBS marine batteries are engineered for life on the water, providing dependable power with corrosion resistance and deep-cycle capability. They are built to handle the demands of marine environments and keep your boat performing reliably through every adventure. For boaters NBS serves a high end solution with our premium grade lithium Iron Phophate (LiFeO4) batteries which are built for marine applications.
Marine Batteries
Li Ion 18650 Battery Pack
51.2V 100 Ah LiFePO4 Battery Pack
51.2V 50Ah LiFePO4 Battery Pack
51.2V 12Ah LiFePO4 Battery Pack
25.6V 200Ah LiFePO4 Battery Pack
Get Ready for Boating Season With Marine Batteries
National Battery Supply delivers 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 a combination of these, our lineup of high-quality batteries is built to withstand the harsh conditions of the open water.
Get the durability and longevity you need when the water calls with NBS. Whether you’re an expert mariner or a weekend adventurer, our marine batteries are engineered for your watercraft and recreational vehicles, helping ensure a successful outing.
Benefits of Lithium Marine Batteries
Our NBS lithium marine batteries offer multiple benefits. They are lightweight, durable, maintenance-free, fast-charging, and safe to store.
Our lithium batteries are much lighter than traditional lead-acid batteries, which improves your boat’s performance and handling.
They can store more energy in a smaller, more compact size.
Our marine batteries perform reliably in a wide range of temperatures, from extreme heat to freezing cold.
Marine LiFePO₄ Battery
Marine LiFePO₄ Battery gives a burst of power to your engine when you start your boat. Starting marine batteries are designed to get your boat going and are built to handle severe conditions. Once the engine starts, the alternator takes over to provide power and recharge the battery.
Golf Cart LiFePO4 Batteries
Our Golf Cart LiFePO4 Battery bring the power to your trolling motor and other accessories for extended periods. These lightweight batteries can hold a charge for years without maintenance and recharge 3X faster than lead-acid batteries and deliver constant performance with each charge that lasts 10 times longer than AGM batteries.
Marine Cranking Lithium LiFePO4 Batteries
Our Marine Cranking Lithium LiFePO4 Battery serve all the cranking power of a traditional starting battery plus the continuous discharge of a deep-cycle battery. Best for compact settings on smaller vessels that lack room in the battery compartment for two separate batteries without skimping on power.
LiFePO4 Batteries for RV
Our LiFePO4 Batteries for RV are built tough to handle the rigors of the marine environment, and the construction itself stands against wave-induced vibrations and shocks that could harm normal batteries. Our NBS watercraft batteries are compatible with any recreational watercraft, are easy to install, and can be mounted easily at any angle.
Power up Your Sailing Adventures With Our NBS Marine Batteries
With advanced onboard tech, our marine deep cycle batteries serve corrosion resistance and longer run time to withstand harsh conditions.
Marine Batteries Applications
Our marine lithium batteries are ideal for yachts because of their deep discharge capacity. This allows you to distribute power to additional equipment, such as air conditioners and thrusters.
The consistent power provided by our marine batteries is essential for fish finders, sonar systems, and other electronic equipment used during successful fishing trips.
Marine batteries are a cornerstone of propulsion systems designed to support clean energy and eco-friendly operations.
How To Choose The Right Marine Battery?
Consider the following factors when choosing the right marine battery:
Marine Cranking Amps (MCA): MCA measures the battery’s ability to start an engine at 32°C.
Amp-Hours (Ah): Amp-hours indicate the battery’s capacity to deliver current over a specific period of time.
Reserve Capacity (RC): RC indicates how long the battery can supply power before its voltage drops.
Battery Size: Consider the battery’s dimensions to ensure it fits properly in your boat’s battery compartment.
Get Lithium Marine Batteries For All Types of Boats
Our (LiFePO4) batteries are built in all types of watercraft boats and give dependable power for lasting performance and keeping you in the water longer.
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FAQ’s
How long do marine batteries last?
A marine battery can last between 3 and 5 years, which actually depends upon your usage and charging needs.
How often do I charge my marine battery?
A marine battery should be charged after every boat trip. Do not wait until the battery is completely empty. For the best battery life, recharge it when it reaches around 50% charge level.
How do I store a marine battery in the off-season?
To store a marine battery during the off-season, fully charge the battery, disconnect it from the boat, keep it in a cool and dry location, and check its charge level regularly. Proper storage prevents battery damage, capacity loss, and starting problems when the boating season begins again.
Should I disconnect my marine battery when not in use?
Yes, you should disconnect your marine battery when the boat is not in use for an extended period, especially during off-season storage or when the boat will sit unused for several weeks. Disconnecting the battery prevents parasitic power drain from onboard electronics and helps protect the battery from unnecessary discharge.
Why is my boat battery dead after storage?
A boat battery is usually dead after storage because it slowly lost its charge while sitting unused. The most common causes are small electrical drains, leaving the battery partially charged, natural self-discharge, poor storage conditions, or an aging battery.
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National Battery Supply delivers dependable energy storage solutions tailored to commercial, industrial, and government applications. Our catalog ranges from custom battery manufacturing and UPS systems, portable power stations, to high-capacity solutions like whole-home battery energy storage systems (BESS) and scalable containerized energy storage units- engineered for reliability, flexibility, and rapid deployment.
We support critical infrastructure, telecom, data centers, healthcare, and remote operations with power systems built for performance in demanding environments. Whether it’s deep cycle batteries, lithium forklift replacements, OEM portable power kits, solar backups, and large-scale energy storage systems. We provide tailored solutions with short lead times, custom branding, and bulk pricing.
Our team also specializes in helping integrators, resellers, and developers source complete battery systems for residential microgrids, off-grid power stations, and industrial container setups. Whether you need to back up a home, energize a remote site, or manage facility-wide loads, we have the scalable energy storage options to match.
Contact us today to learn how our advanced power systems can reduce downtime, extend operational capacity, and support your long-term energy goals.
National Battery Supply is a reputable manufacturer specializing in custom battery solutions. With over 20 years of experience, we can manage all your power needs.