Iborn manufactures and supplies marine lithium batteries with a wide variety of voltage, capacity, available from 40Ah to 525Ah, that suits the needs of 12v, 24v, 36v, 48v and other different voltage marine systems. We provide high-grade lithium iron phosphate batteries that are lead-free and safe. Our deep cycle lithium batteries offer excellent durability as well as long run time for bass boats, sailboats, kayaks, and catamarans.
Iborn BL Series lithium battery is the direct replacement of deep cycle lead-acid batteries. It uses automotive-grade EVE LiFePO4 cells with low internal resistance, high consistency and sufficient capacity. In addition, the battery has been enhanced with cutting-edge process technology to ensure reliable and efficient operation. Advanced laser welding process is used to ensure stable high power output.
Iborn BL Series lithium battery is equipped with a smart BMS with Bluetooth connectivity for real-time battery status monitoring on smart phones via Iborn app.
The app boasts a user-friendly interface and a minimalist design to ensure easy access to vital battery information. You can view multiple batteries at one glance, and get detailed data like SOC, Status, Voltage, Current, Temperature, Cycle Times, and Battery Health, for a comprehensive view of battery performance.
A unique protection mode is available to easily cut off battery discharge. What’s more, there are wireless software upgrade to help troubleshoot battery issues, and calibration function to directly calibrate current and SOC without extra tools.
This LiFePO4 battery has IP67 waterproof resistance and exceptional shock resistance. It is the ideal solution for marine boats, RV motorhomes, and other applications exposed to wet conditions or rough vibrations.
To guarantee its reliability, Iborn has conducted rigorous tests. Our battery has been submerged in 1-meter deep water for 30 minutes, and dropped from 1.7-meter stairs for 10 times. After the tests, the battery maintained normal voltage and a stable Bluetooth connection.


| Model | IB3660 |
| Nominal Voltage | 38.4V |
| Nominal Capacity | 60Ah |
| Energy | 2304Wh |
| Recommend Charge Voltage | 43.8V |
| Discharge Cut-off Voltage | 30V |
| Recommend Charge Current | 20A |
| Max. Charge Current | 60A |
| Max. Constant Discharge Current | 60A |
| Peak Discharge Current | 120A @3s |
| Dimension (L*W*H) | 330*172*215 mm (13*6.8*8.5 in) |
| Weight | 16 kg (35.2 lbs) |
| Battery Type | Lithium Iron Phosphate (LiFePO4) |
| Self Discharge Per Month | <3% |
| Charge Temperature | 0 to 60ºC |
| Discharge Temperature | -20 to 60ºC |
| Storage Temperature | 10 to 45ºC |


Use Scenarios
Application in Marine Trolling Motor Systems
In the marine propulsion industry, the 36V60Ah lithium deep cycle marine battery is designed to power trolling motors on fishing boats and recreational vessels, replacing cumbersome lead-acid battery arrays. Its robust IP67 waterproof housing and shock-resistant structure ensure reliable operation in damp and vibration-prone marine environments. This marine lithium battery supports peak discharge currents necessary for variable motor loads during extended cruises or trolling sessions, enhancing endurance and reducing trip interruptions. Integration with Bluetooth-enabled monitoring provides operators and service personnel with immediate insights into battery health, state of charge, and temperature, facilitating proactive maintenance scheduling and ensuring consistent performance in critical waterborne applications.
Deployment for Marine Backup Power and Electronic Systems
This lifepo4 marine battery serves as an efficient backup power source for critical marine electronics such as navigation instruments, communication devices, and onboard sensors in commercial vessels. In harsh offshore or coastal conditions where power reliability is paramount, the battery’s superior cycle life and stable voltage output ensure uninterrupted support. Its lightweight construction and compact volume aid integration into constrained vessel compartments. Compliance with marine safety and environmental standards is enhanced by the battery’s advanced battery management system, which actively manages charge parameters and prevents deep discharge, thus preserving battery longevity. The wireless software updates allow for firmware enhancements aligned with evolving marine system requirements, maintaining optimal performance throughout operational deployment.
Can I customize the specifications of the 36V60Ah Lithium Bluetooth Battery for my marine application?
Yes, we offer customization options on our lifepo4 marine battery products to meet specific voltage, capacity, or form-factor requirements. Contact us with your technical needs, and our engineers will assist in developing a tailored lithium marine battery solution that fits your project's specifications.
What maintenance is required for your lithium deep cycle marine battery to ensure longevity?
Our lithium deep cycle marine battery, based on LiFePO4 chemistry, requires minimal maintenance. Periodic checks via the Bluetooth-enabled smart BMS using the Iborn app help track battery health, temperature, and cycle counts to prevent over-discharge or overheating and maintain optimal performance.
How do you ensure the battery’s durability in marine environments exposed to water and vibration?
We design our lifepo4 battery with IP67 waterproof protection and robust shock resistance to withstand splashes, immersion, and vibrations common in marine settings. Each unit undergoes rigorous testing, including water submersion and drop tests, to guarantee reliable performance under harsh conditions.
What shipping and lead time can I expect when ordering wholesale lifepo4 batteries?
Our factory in Dongguan maintains high production capacity, enabling prompt fulfillment of wholesale lifepo4 battery orders. Lead times vary by order size and customization but typically range from a few days to weeks. Contact us directly for precise shipping schedules and logistics support tailored to your needs.