Marine Battery Manufacturer
The best marine lithium batteries must meet characteristics such as deep cycle, long service life, and waterproofing. The lithium iron phosphate batteries produced at the JMHPOWER factory are specially designed for marine and boat. It has over 6000 time cycles and a over 10 years lifespan. Compared with traditional lead-acid batteries, the weight of lithium batteries is reduced to 1/3. 12V 24V 36V 48V 72V are available, and the battery capacity is also available from 50Ah to 300Ah. Meet more customer needs.
We can also custom-fit your battery based on your boat size and needs. Voltage, capacity, and size can all be customized design.
If you are looking for the cheapest lithium marine batteries with a good quality, please contact Us.
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Advantages of Lithium Ion Marine Battery
-20℃
JMHPOWR lithium batteries can operate in an environment of -20°C, providing sufficient power for marine in low-temperature environments.
4X
The designed lifespan of lithium batteries is more than 10 years, which is 4 times that of ordinary lead-acid batteries.
2X
Its power is more than twice that of ordinary batteries, and higher power output means more powerful power.
5X
Lithium batteries charge 5 times faster than lead-acid batteries, which can quickly fully charge your marine battery.
Marine Battery Group Size Chart
The size chart of the marine battery pack is based on the Battery Council International (BCl) standard. Common marine battery packs include group 24、group 27、group 31 and 8D. The larger the group number, the larger the battery volume is usually. For example, the 8D battery pack (20.47in x10.51in x 8.98in) has the largest volume. The size of batteries in the same group may also be different, for example, the 24, 24H, 24R, and 24T batteries in group 24 may have different heights, with 24T being 0.87 inches taller than 24.
| BCI Group | Length(in) | Width(in) | Height(in) | Actual Size |
| 24 | 10.25 | 6.81 | 8.88 | 10.24×6.61×8.58 |
| 24F | 10.75 | 6.81 | 9.00 | |
| 24H | 10.25 | 6.81 | 9.38 | |
| 24R | 10.25 | 6.81 | 9.00 | |
| 24T | 10.25 | 6.81 | 9.75 | |
| 27 | 12.06 | 6.81 | 8.88 | 12.01×6.61×8.62 |
| 27F | 12.50 | 6.81 | 8.94 | |
| 27H | 11.75 | 6.81 | 9.25 | |
| 31 | 13.00 | 6.72 | 9.44 | 12.95×6.77×8.78 |
| 8D | 20.75 | 11.13 | 9.88 | 20.47×10.51×8.98 |
How to select a suitable marine battery pack?
Firstly, you need to carefully measure and record the size of the battery slots reserved in the vessel. Then refer to the size diagram of the marine battery pack to ensure that the measured length, width, and height are all greater than the selected marine battery pack. In this way, the marine battery pack can be installed normally in the reserved battery slot. Of course, you also need to pay attention to leaving some space for the installation and ventilation of the marine battery pack.
Secondly, the specifications of marine battery packs can to some extent reflect the capacity of the batteries. Therefore, based on the size chart of the marine battery pack and combined with the power requirements of your vessel, you can choose a suitable capacity marine battery pack to meet the power needs of the vessel.
12v Marine Lithium Batteries
The JMHPOWER 12V marine battery adopts an IP65 waterproof design, which ensures that the battery can maintain good performance even in harsh marine environments. Its sealed casing and circuit board protection measures can effectively prevent battery damage or inability to use due to water intrusion. This means that even in damp ship environments, the battery can operate safely, avoiding short circuits or other safety hazards caused by moisture contact.
24 Volt Lithium Marine Batteries
The built-in battery management system (BMS) of marine batteries has multiple functions, which can effectively protect the batteries from risks such as short circuits, overcharging, over-discharging, and high-temperature damage. By monitoring real-time parameters such as voltage, current, and temperature of the battery, BMS can ensure that the battery operates within a safe range. In addition, BMS can balance the capacity of each battery cell, ensuring that the voltage of the cells in the battery pack remains consistent, thereby improving the overall performance and consistency of the battery pack. This balanced management function not only optimizes the efficiency of battery usage but also significantly extends the lifespan of the battery.
36 Volt Lithium Marine Batteries
Although lithium-ion batteries can achieve 100% discharge technically, we still recommend avoiding frequent full discharge as much as possible, as this deep discharge behavior can cause irreversible damage to the internal chemical structure of the battery, accelerating its aging process and shortening its service life.
In addition, to maintain optimal battery performance and extend its lifespan, it is recommended to perform a complete charging cycle every three months to activate the battery’s chemical activity and maintain its health.
Marine & Boat Battery FAQ
This is not absolute. 8D marine batteries have a large capacity, but they are also heavy, making them more suitable for large vessels or commercial fishing boats. For small ships, group 27 marine batteries are lighter, which can reduce the weight of the ship and ensure performance.
The energy density of group 31 marine batteries is higher than other common groups, with larger capacity and higher cold cranking ampere (CCA). This makes group 31 batteries perform better when starting large engines in cold weather. Therefore, if there are high requirements for energy density and low-temperature start-up performance, group 31 marine batteries are an ideal choice.
Firstly, regularly check the battery level to avoid deep discharge. Secondly, keep the battery terminals clean to prevent corrosion. Finally, regularly perform charging cycles to ensure that the battery is in optimal condition.
Why Choose JMHPOWER Marine Batteries?
JMHPOWER factory has a professional design and engineer team of over 20 people, each of whom has been engaged in this industry for at least 8 years, possessing complete technical knowledge and advanced design concepts. Design and improve batteries that meet market demand.
- We export to most countries around the world the required certificates, UL / IEC / CE / ROHS / MSDS /UN38.3 / FCC, etc.
- With more than 300 distributors, our products are sold to most countries and regions around the world. We provide door-to-door delivery services.
- Sample orders can be delivered within 7 days, and bulk orders can be delivered within one month. For large batch orders, production will be arranged through negotiation.
- After-sales service: We will respond to after-sales questions within 12 hours. We provide lifelong after-sales service consultation and the provision of repair parts.
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