Key Advantages
Long Cycle Life & Reduced Maintenance Costs:
With 2,000+ charge cycles, our marine lithium battery packs significantly outperform traditional lead-acid batteries. The extended service life reduces battery replacement frequency and lowers long-term maintenance and operating costs for marine applications.
Intelligent BMS Protection & Real-Time Monitoring:
Equipped with an advanced BMS, the battery pack monitors cell voltage, temperature, and voltage differences in real time. Multiple protection functions prevent overcharge, over-discharge, overcurrent, short circuits, and overheating. Support for CAN, RS485, and Bluetooth enables seamless integration with vessel control systems and mobile terminals for convenient status monitoring.
Wide Temperature Adaptability for Reliable Marine Operation:
Designed for demanding marine environments, the battery supports a wide operating temperature range of -20℃ to 55℃. Optional low-temperature heating systems enable stable performance in cold northern waters and high-temperature sea areas, ensuring reliable year-round operation.
Specifications
|
Product Specifications |
HQ-74V104Ah |
Battery Type |
LiFePO4 Battery |
|
Charging Voltage |
79.2V |
Charging Current |
50A |
|
Discharge Current |
100A |
Cut-off Voltage |
59V |
|
Product Dimensions |
688 * 200 * 335 mm |
Cycle Life |
≥ 2,000 times |
|
Operating Temperature |
-20 - 55℃ |
Storage Temperature |
-10 - 35℃ |
|
BMS |
Optional：CAN / RS485 / Bluetooth |
Battery Display |
/ |
|
Warranty |
2 years |
Service Life |
6 years |
Application Scenarios
1. Power supply for leisure yachts: Provides power for daily equipment and auxiliary propulsion. Lightweight design reduces hull load with stable output, making it ideal for long-distance leisure sailing.
2. Energy storage for inland & offshore fishing boats: Supplies power for navigation equipment, lighting, refrigeration systems and auxiliary power. Resists humid environments with ultra-long cycle life to reduce continuous investment for fishermen.
3. Power source for water sightseeing cruisers: Designed for frequent start-stop cycles and continuous operation of inland sightseeing vessels. Provides stable power output and reduces downtime caused by maintenance.
4. Power supply for official small vessels & water working boats: Featuring safe LiFePO4 chemistry, comprehensive BMS protection, and excellent shock resistance, it is ideal for patrol boats, survey vessels, dredging boats, and other marine applications.
FAQ
1. Q: Which battery type is better for marine use, LiFePO4 or lead-acid battery?
A: LiFePO4 lithium battery is the preferred solution for modern vessels. Compared with traditional lead-acid batteries, it is lighter, faster to charge, longer-lasting, maintenance-free, and avoids risk of acid leakage, making it safer for enclosed cabin environments.
2. Q: How many years can this marine lithium battery last?
A: The battery is designed for a service life of up to 6 years and supports ≥2,000 charge cycles. Actual service life depends on charging habits, depth of discharge, ambient temperature, and maintenance conditions. Under proper usage, it provides stable and reliable long-term performance.
3. Q: Is lithium battery safe installed inside ship cabins?
A: Yes. The battery is equipped with an intelligent BMS providing protection against overcharge, over-discharge, overcurrent, short circuits, and high temperatures. LiFePO4 cells have excellent thermal stability with low risk of fire or explosion. Customized protective cases are available for humid and salt spray environments.
4. Q: Can you provide OEM & ODM service?
A: Yes. We provide comprehensive OEM & ODM customization services, including logo printing, customized housings, display integration, Bluetooth APP monitoring, CAN/RS485 communication, dimension adjustments, IP rating customization, and terminal solutions.
5. Q: What temperature range can marine lithium batteries adapt to? Can they work in cold sea areas during winter?
A: Standard operating temperature: -20℃ ~ 55℃; Storage temperature: -10℃ ~ 35℃. A low-temperature heating system is optional for vessels sailing in cold northern waters to improve charge and discharge performance under low temperatures.
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