12V 100Ah Group 31 LiFePO4 Battery for Trolling Motors
$169.00
This 36V 50Ah LiFePO4 trolling motor battery provides 1,920Wh of energy in a compact Group 31-size case for 36V trolling motors and marine electrical systems. Bluetooth monitoring, a 50A Smart BMS and low-temperature protection make it easier to monitor and manage the battery during everyday marine use.
Built as a single 38.4V battery, it can replace a three-battery 12V series bank in compatible 36V applications, reducing battery count and simplifying installation.
38.4V | 50Ah | 1,920Wh | 50A Smart BMS | Bluetooth | Group 31 Size | IP65 | Low-Temperature Protection
This 36V lithium trolling motor battery is designed for applications that need a compact deep-cycle power source without building a 36V battery bank from three separate 12V batteries.
With 50Ah of rated capacity and 1,920Wh of stored energy, the battery is suitable for compatible 36V trolling motors, including systems in the 100–120 lb thrust range where the motor manufacturer's voltage and current requirements remain within the battery and BMS ratings.
Bluetooth monitoring gives operators convenient access to battery information without opening the battery compartment for routine checks. A compatible monitoring interface can display state of charge, voltage, current, power and battery temperature.
For boats where the battery is installed below deck or inside a protected electrical compartment, this provides a practical way to check battery status before and during operation.
The integrated 50A Smart Battery Management System monitors the battery during charging and discharging and provides protection against operating conditions outside the programmed limits.
The battery supports up to 50A continuous charge and discharge current. At 38.4V nominal voltage, this corresponds to approximately 1,920W of continuous output. Peak discharge current is rated at 250A for 1 second.
Always confirm the trolling motor's maximum current requirement and follow the motor manufacturer's recommendations for cable size, fuse or circuit-breaker rating and disconnect protection.
The Smart BMS monitors cell temperature and automatically pauses charging when the battery is below its permitted charging range. Charging becomes available again after the cells return to a safe temperature.
This model does not include self-heating. Low-temperature protection disconnects charging when necessary but does not actively warm the battery cells.
A conventional 36V trolling motor system is often built from three 12V batteries connected in series. This 38.4V LiFePO4 battery provides the required nominal system voltage from one battery enclosure.
For compatible lead-acid replacement projects, using a single 36V battery can reduce the number of battery-to-battery connections and simplify the DC battery bank.
Before replacing an existing AGM or flooded lead-acid battery bank, confirm:
The battery uses a compact Group 31-size enclosure measuring approximately 13 × 6.77 × 8.5 inches. This makes it easier to integrate into many protected marine battery compartments where installation space is limited.
Before installation, measure the available compartment and allow sufficient clearance for terminals, cable routing, overcurrent protection and ventilation around associated electrical equipment.
The battery is intended primarily for 36V deep-cycle applications where a stable lithium power source is required.
This is a deep-cycle LiFePO4 battery. Do not use it as a marine engine-starting battery unless the starting application has been specifically tested and approved for the battery configuration.
Up to four identical batteries can be connected in parallel for applications that require additional capacity while maintaining the same 38.4V nominal system voltage.
Do not connect this battery in series. Parallel batteries should be the same model, capacity, BMS version and state of charge. Use equal-length cables and suitable overcurrent protection for each battery branch.
Use a LiFePO4-compatible charger or charging system with the correct CC/CV profile. The reference charging voltage is 43.2V ± 0.6V, with a recommended charging current of approximately 10A.
Do not connect an AC source, generator or solar panel directly to the battery. Charging equipment must regulate voltage and current within the battery's specified limits.
| Parameter | Specification |
|---|---|
| Battery Chemistry | LiFePO4 |
| Nominal Voltage | 38.4V |
| Rated Capacity | 50Ah |
| Energy | 1,920Wh |
| Battery Format | Group 31 Size |
| Dimensions | Approximately 13 × 6.77 × 8.5 in |
| Weight | Approximately 33.14 lb |
| Battery Management System | 50A Smart BMS |
| Maximum Continuous Charge Current | 50A |
| Maximum Continuous Discharge Current | 50A |
| Maximum Continuous Output Power | 1,920W |
| Peak Discharge Current | 250A for 1 second |
| Recommended Charge Current | 10A |
| Charge Voltage | 43.2V ± 0.6V |
| Charge Method | CC/CV |
| Bluetooth Monitoring | Supported |
| Self-Heating | Not included |
| Low-Temperature Protection | Supported |
| Charge Temperature | 0°C to 50°C / 32°F to 122°F |
| Discharge Temperature | −20°C to 60°C / −4°F to 140°F |
| Storage Temperature | −10°C to 50°C / 14°F to 122°F |
| Cycle Life | 4,000 cycles at 100% DOD; 6,000 at 80% DOD; up to 15,000 at 60% DOD |
| Internal Resistance | ≤40mΩ |
| Terminal | M8 Bolts |
| Housing Material | ABS |
| Protection Class | IP65 |
| Parallel Expansion | Up to 4P / 38.4V 200Ah |
| Series Connection | Not supported |
Yes. It is designed for compatible 36V trolling motor systems. Confirm that the motor's maximum current demand remains within the battery's BMS ratings before installation.
In a compatible 36V system, one 38.4V LiFePO4 battery can replace a three-battery 12V series bank. Charger, cable, protection-device and compartment compatibility should be checked before conversion.
No. Series connection is not supported. Up to four identical batteries may be connected in parallel to increase capacity while maintaining a 38.4V nominal system voltage.
Yes. Bluetooth monitoring supports convenient access to battery information including state of charge, voltage, current, power, temperature and operating status through a compatible monitoring interface.
No. This model includes low-temperature charging and discharging protection but does not include active self-heating. Charging is automatically paused below the permitted charging temperature and resumes after the cells return to a safe range.
This battery is designed primarily for deep-cycle use, including compatible 36V trolling motor systems. Do not use it for marine engine starting unless the specific starting application has been tested and approved for this battery configuration.
Sourcing a 36V LiFePO4 battery for trolling motors, fishing boats, marine equipment or OEM battery programs? Tell us about your application, expected order quantity and required configuration.
Our team can review your voltage and current requirements, installation space, Bluetooth monitoring, labeling, packaging and certification needs before preparing a project quotation.
Request OEM & Volume Pricing Discuss Your Marine Project
Need a different capacity, enclosure or battery configuration? Send us your application requirements and our team can review a custom LiFePO4 battery solution for your project.
Many LiFePO4 batteries can replace compatible lead-acid deep-cycle batteries in RVs, boats, golf carts and industrial equipment. Before installation, confirm the system voltage, battery dimensions, terminal layout, charger profile, maximum load, cable size, fuse rating and operating temperature.
Most LiFePO4 batteries are compatible with standard 12V, 24V, 36V or 48V inverters when the system voltage and power requirements match. Many modern chargers also include a LiFePO4 charging profile. For lead-acid replacement projects, confirm the charger voltage, inverter rating and maximum load before installation. A compatible charger or DC-to-DC charger may be required if the existing charging equipment does not support LiFePO4 batteries.
Yes. OEM and custom battery support can include voltage, capacity, BMS settings, enclosures, terminals, connectors, communication protocols, labels and packaging. Send us the application, electrical requirements, installation dimensions and expected order quantity for review.
MOQ depends on the battery model, specification and customization requirements. Standard models may be available for sample testing, while custom enclosures, private labels and OEM production normally require a confirmed order quantity. Contact us with the model and required quantity for details.
Available certifications and documents depend on the battery model and destination market. Supporting documents may include UN38.3, MSDS, CE, RoHS and product test reports. Confirm the required documents and target market before placing an order.
Lead time depends on the battery model, order quantity, customization and testing requirements. Export shipping options are arranged according to the battery specification, destination and order volume. Send us the required quantity, delivery location and target schedule for a project-specific quotation.
