Lithium Marine Deep Cycle Battery
Our Advantages
Leading Technology
Cutting-edge solutions integrating the latest technology to create intelligent, digital, and high-performance battery. And subject our batteries to rigorous testing, ensuring that every unit we produce meets high standards for exceptional, reliable performance and ample capacity.
Full-Service Support
We provide a 5-year warranty on all our lithium batteries, along with reliable delivery services. Our dedicated support team is available 24/7 to quickly address any questions and offer the most appropriate battery solutions at no additional cost.
Expert Engineering Team
CoPow team consists of professionals with experience from renowned companies like CATL, EVE, and BYD. This expertise enables us to offer the most cost-effective lithium batteries tailored to specific applications, in partnership with leading brands.
Extensive Global Experience
With 16 years of experience in the lithium battery industry, we cover a wide range of applications. CoPow has a global footprint, operating in over 40 countries, including the United States, the United Kingdom, Germany, and Australia.
Get a Custom Lithium Marine Battery Solution
Why Choose CoPow Lithium Marine Batteries?
As a brand deeply rooted in the lithium marine battery sector, CoPow’s core competitiveness comes from its deep integration with China’s top-tier lithium battery industry chain.
Its technical team is composed of senior experts from leading enterprises such as CATL and BYD, ensuring a professional and robust foundation at the system architecture level. CoPow Lithium Batteries for Boats consistently adopt Grade A LiFePO4 cells, benchmarking international standards in cell consistency and energy density, and supporting a service life of up to 8 years.
Designed for complex marine environments, CoPow LiFePO4 marine batteries are not simply assembled components, but purpose-built industry solutions. Through IP67-rated precision waterproofing, intelligent self-heating technology, and a highly integrated smart BMS system, CoPow effectively addresses real-world challenges such as salt spray corrosion, charging difficulties in extreme cold, and real-time power monitoring onboard vessels.
From a procurement and operational perspective, CoPow’s advantages are reflected in three key areas:
- High Reliability: An extremely low return rate combined with a comprehensive after-sales support system significantly reduces long-term maintenance costs.
- Economic Efficiency: With a lightweight design and a cycle life exceeding 4,000 cycles, the total cost of ownership can be reduced by approximately 70% compared to traditional power solutions.
- Global Supply Capability: Supported by compliance systems covering more than 40 countries, CoPow provides the mid-to-high-end marine power market with a stable, transparent, and price-competitive supply option.
This model—deeply integrating “tier-one manufacturer technology” with specialized application scenarios—has enabled CoPow to establish a clear and trusted professional positioning in the global B2B market.
Lithium Marine Battery Replacement for Lead-Acid Systems
CoPow Marine Lithium Battery series
CoPow’s Marine-Grade Lithium Battery line is organized based on actual seafaring needs.
The core of the lineup is the Deep Cycle Series. These batteries come in a full range of specifications, including 12V, 24V, and 48V lithium batteries for yachts. They are designed for stability, providing consistent power for onboard lighting, navigation systems, and appliances to ensure a reliable lifestyle at sea.
For electric propulsion, CoPow offers a High-Voltage Series. By using series and parallel configurations, these batteries deliver the higher power output required to drive electric outboards or inboard motors, making them the primary choice for medium to long-distance travel.
For anglers, there is a lithium batteries for fishing boats. Since the marine environment can be harsh, these batteries feature enhanced sealing to resist salt spray and a reinforced internal structure to handle heavy vibrations and jolts in rough waters.
Beyond standard models, CoPow also provides custom lifepo4 Battery solutions for specialized vessels. By integrating a smart BMS, they can tailor the battery dimensions and voltage to fit specific engine rooms or cabins. This ensures a precise fit for everything from small fishing boats to mid-sized yachts.
| Product Line | Voltage / Configuration | Typical Applications | Key Features |
|---|---|---|---|
| Deep Cycle Series | 12V / 24V / 48V | House loads: navigation systems, lighting, refrigeration, onboard electronics | Designed for stable, long-duration discharge to ensure consistent power throughout the voyage |
| High-Voltage Propulsion Series | Series & parallel configurations | Electric propulsion systems (electric outboards & inboard motors) | High power output to deliver strong thrust for medium- to long-distance cruising |
| Portable Trolling Motor Series | Portable low-voltage systems | Trolling motors for fishing boats | Enhanced sealing against salt spray; rugged, vibration-resistant internal structure |
| Customized Solutions | Custom voltage & size | Specialized vessels and unique installations | Smart BMS integration; flexible design to fit specific cabin spaces, from small fishing boats to mid-sized yachts |
Custom Marine Lithium Battery for OEM and Specialized Marine Applications
Lithium Marine Battery Manufacturer Specializing in LiFePO4 Technology
Types and Uses of Marine Lithium Batteries
Lithium iron phosphate (LiFePO4) batteries offer excellent energy efficiency and safety. Because of their lightweight design, high energy density and long service life, most fish boats require two types of 12-volt batteries. A starter battery, used to start the main engine. The other is a deep-cycle battery, used to power the trolling motor and other accessories. Of course there are dual purpose batteries that can fulfill both needs.
Typically used to provide the high power needed to start a marine engine. Mostly used on boats with conventional internal combustion engines to power the ignition system and electronics.
Designed for continuous, long-term power supply. Ideal for trolling motors, electronic equipment such as sound systems, fishfinders, and GPS, they meet the needs of trolling motors, marine electronics, and auxiliary power, and support long periods of use without frequent recharging. 3. dual-cycle batteries
It can be used as both a starting battery for the engine and a deep cycle battery for the boat. It can be used as both a starting battery for engines and a deep cycle battery for onboard electronics and accessories, providing versatility for a variety of marine applications. Due to space constraints on some boats, dual-purpose batteries have become the preferred choice for this category.
Choosing the most suitable lithium iron phosphate battery is very important for the outdoor fishing boat experience. CoPow professional and experienced engineers specially designed this battery for boats to make you better succeed in enjoying the joy of fishing.
CoPow's marine batteries batteries have excellent performance, more efficient energy, and intelligence to make it better to provide energy and power for your boat;
Our best-selling 36V series of marine batteries batteries are 36V63Ah,100Ah,150Ah, etc. Our design concept is to make larger capacity batteries in a smaller size, with optimal energy and technology;
These batteries can provide long lasting power and stable performance, all of them can meet any application on fishing boats;
Compared with lead-acid batteries small size and light weight, more convenient for installation and charging, you can rest assured that you can use them without worrying about the battery power;
We use A grade power type cells, and circuit integrated intelligent BMS, for your battery high efficiency and performance;
Provide 3-5 years warranty service and permanent technical support;
Lithium Marine Batteries
With CoPow lithium iron phosphate (LiFePO4) deep cycle battery, you can enjoy more time fishing freely on the water, even in rough wind and waves. This battery allows you to indulge in your passion, extending your fishing enjoyment. It can remain onboard for charging, without affecting battery life, supports fast charging. It is lighter and more compact. Environmentally friendly, it has no harmful impact and eliminates the need for frequent battery replacements.
Equipped with Bluetooth capability, CoPow batteries enables you to monitor its status conveniently with your smartphone, ensuring you are always informed and prepared. It can equipped with a built-in balancing circuit for continuous optimal performance.
We also offer an optional WiFi-enabled battery. No matter your boat type, CoPow's marine batteries provide more power, cost savings, reliability, and safety.
FAQ
Q: Do you need a special charger for lithium marine batteries?
Q: Can I leave my lithium batteries in my boat over the winter?
Q: What is the best marine lithium battery?
Q: Will a boat motor charge a lithium battery?
Q: What is the best lithium battery for starting outboard motors?
Q: Are lithium batteries suitable for marine use?
Q: What is the best lithium marine batteries?
Q: Can Marine alternators charge my lithium marine batteries?
Q: What batteries do professional fishermen use to meet their needs?
Q: Is the safest lithium marine batteries a LiFePO4 battery?
Q: What are the main types of marine deep-cycle batteries?
Q: Are lithium batteries worth using in marine?
Q: How many lithium marine batteries do I need?
Q: Can I start the lithium marine batteries myself?
Features
Advanced Lithium Iron Phosphate (LiFePO4) Technology
LiFePO4 batteries deliver enhanced power, reduced weight, and a lifespan three times longer than traditional lead-acid batteries, lasting up to 10 years.
Zero maintenance—no watering, no acid, no corrosion.
Heating: internal heating allows for charging below freezing temperatures.（Optional
Bluetooth Connectivity: Compatible with iOS and Android apps.
IP67 Protection: Dust proof and waterproof to ensure durability.
Smart Battery Management System (BMS): Built-in intelligence for optimal performance and safety.
Overall costs are significantly lower, saving 70% over five years.
We're professional lithium marine batteries manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale lithium marine batteries at competitive price from our factory.
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