In the operation system of intelligent waterborne equipment such as unmanned ships and unmanned boats, stable and reliable power supply is the core foundation for ensuring the equipment to conduct long-term and complex operations in water areas. Traditional lead-acid batteries are large in size and heavy in weight, and ordinary consumer-level lithium batteries lack waterproof and corrosion-resistant designs, making them difficult to meet the strict requirements of waterborne equipment. Weihai Fangzhou Technology Co., Ltd. has launched an unmanned ship-specific lithium battery pack, with “high waterproof performance, strong safety, and long endurance” as its core characteristics. It is specially designed for waterborne operation scenarios and serves as the “power heart” of unmanned ship equipment, laying a solid power support for the efficient operation of various waterborne intelligent equipment.
Core features: Robust protection and performance tailored for unmanned vessels
1. Fully waterproof sealed design, unafraid of challenges in complex water areas
Unmanned vessels often face risks such as wind and waves, rainwater immersion, and even temporary submersion during operations. The waterproof performance of the battery directly determines the survival capability of the equipment. The lithium battery pack of Yu Hai Yun Zhou adopts a high-quality silicone overall encapsulation process, combined with an IP68-level waterproof housing, can remain stable power supply even when submerged in 1-meter water depth for 2 hours, fully meeting the operational needs of unmanned vessels in severe environments such as heavy rain, rapids, and high humidity.
Its waterproof connector adopts a special threaded locking and O-ring sealing structure to ensure that there is no water ingress at the connection part between the battery and the equipment, completely solving the power waterproof pain point of waterborne equipment. Whether it is the scraping of water plants in inland rivers or the high salt fog corrosion in near-sea areas, this battery pack can maintain stable power output and provide reliable support for the all-weather operations of unmanned vessels.
2. Eight-layer safety protection mechanism, building a comprehensive safety barrier
The waterborne operation environment is complex, and the safety performance of the battery is of the utmost importance. This lithium battery pack is equipped with an eight-layer intelligent protection system, which has been specially optimized for the special risks of waterborne equipment:
Overcharge / Overdischarge protection: Automatically monitors battery voltage to prevent the risk of bulging caused by excessive charging, and at the same time avoid damage to the battery cell due to deep discharge;
Overcurrent / Overpower protection: When the unmanned vessel starts high-power equipment (such as side-scan sonar, spray pump propeller), automatically limits peak current to prevent circuit overheating;
Overvoltage / Temperature protection: Automatically adjusts output power in high-temperature or low-temperature environments to avoid battery cell degradation due to abnormal temperature;
Short circuit / Electromagnetic field protection: For scenarios with many metal components and electromagnetic equipment on the water, effectively prevent short circuits and electromagnetic interference from damaging the battery.
This protection system, by monitoring the battery status in real time, can cut off abnormal current within milliseconds, preventing risks of battery overheating, fire, and even explosion, thus building a solid barrier for the operational safety of unmanned vessels.
3. Intelligent management of dual battery packs, dual improvement of endurance and efficiency
To meet the high power requirements of unmanned vessels for long-term cruising and simultaneous operation of multiple modules, this battery pack supports parallel management of dual battery packs. Through an intelligent balancing algorithm, the system can automatically allocate the output power of the two battery packs, ensuring more lasting and balanced power supply, and increasing the single-time endurance time by more than 40% compared to a single battery pack.
Combined with the low-power design of unmanned vessels, this battery pack can support continuous operation for 6-8 hours with a single charge, and has a coverage range of over 20 kilometers, significantly improving the efficiency of tasks such as hydrological monitoring and pollution source tracing. At the same time, the dual battery pack design also has redundant backup functionality. When one set of batteries fails, the other set can immediately take over power supply, avoiding the equipment from losing control and sinking in complex waters.
4. High compatibility and durability, suitable for all scenarios of waterborne equipment
The lithium battery pack of Weihai Cloud舟 adopts a standardized XT60 interface design， which can be seamlessly adapted to multiple pieces of equipment such as Doppler current measurement unmanned vessels， surface reconnaissance unmanned boats， and water quality monitoring unmanned vessels. It can be plugged in and used immediately without additional modification. Its shell is made of high-strength ABS + PC composite material， with excellent corrosion resistance and vibration resistance， and can adapt to the jolts and impacts caused by the high-speed navigation of the vessel body. Its service life is much longer than that of ordinary consumer-grade lithium batteries.
In terms of adaptability to extreme environments， the battery pack can operate stably within a wide temperature range of -20℃ to 60℃. Whether it is ice surface operations in northern winters or high-temperature environments in southern summers， it can maintain stable power output. At the same time， its self-discharge rate is lower than 3% per month， and even when left idle for a long time， it can quickly restore power supply， meeting the needs of emergency rescue and other sudden tasks.
Application Value: Revitalizing the operational capabilities of aquatic intelligent equipment
Weihai Ark Technology Co., Ltd. has launched this application of the lithium battery pack, directly driving the upgrade of the operational capabilities of unmanned boats and other aquatic intelligent equipment:
Extended range: The long-range capability enables unmanned boats to cover a larger area of water bodies, eliminating the need for frequent return and charging, significantly enhancing the efficiency of tasks such as monitoring and rescue. For example, in water flow monitoring in reservoirs, traditional equipment can only complete 2 cross-section measurements per day, while the unmanned boat equipped with this battery pack can complete 5-6 cross-section measurements, with an efficiency increase of more than 2 times.
Safety improvement: Waterproof and multiple protection designs completely eliminate the risks of battery water ingress and short circuits during water operations, ensuring the safety of the equipment and data. In a flood emergency monitoring operation in Wanzai County, Jiangxi Province in 2025, the unmanned boat encountered sudden heavy rain, but the battery pack continued to supply power even after being soaked in rainwater, successfully completing the flow velocity and flow volume monitoring task during the flood period.
cene expansion: The wide temperature environment adaptability and high compatibility enable the unmanned vessel to operate stably in various scenarios such as freshwater, seawater, low temperatures, and high temperatures. For example, in the task of inspecting underwater conduits in the near sea area, the battery group’s resistance to salt fog corrosion ensures that the equipment can work for a long time in high salinity waters, providing key data support for pollution source tracing.
Cost optimization: The high durability and long lifespan design reduce the maintenance and replacement costs of the equipment. Compared with traditional lead-acid batteries, this lithium battery pack can last for more than 5 years, and the overall usage cost is reduced by 30%.
From daily hydrological monitoring to emergency rescue, from water quality sampling to underwater conduit inspection, the dedicated lithium battery pack for Yu Hai Yun Zhou unmanned vessels, with its stable power output and reliable protective performance, has become an indispensable core component of water-based intelligent equipment. With the rapid popularization of water-based intelligent equipment, this “power heart” will continue to provide solid technological support for safeguarding the safety of rivers and ensuring ecological security.