12V 100Ah Group 31 LiFePO4 Battery for Trolling Motors
$169.00
This 12V 100Ah Group 31 LiFePO4 battery delivers 1,280Wh of deep-cycle energy for compatible 12V trolling motors, fishing boats and onboard marine equipment. The Group 31 case fits verified battery trays while a 100A BMS protects the cells during charging and discharge.
Low-temperature protection pauses charging below 0°C, and the IP65 enclosure helps protect the battery from dust and water spray. The battery should still be secured in a dry, protected compartment with correctly sized cables, fuse protection and a battery disconnect.
12.8V | 100Ah | 1,280Wh | Group 31 | 100A BMS | Low-Temperature Protection
The battery measures approximately 13 × 6.77 × 8.43 inches and weighs approximately 23.4 lb. Before replacing an existing battery, measure the tray, available height and hold-down points, then confirm the terminal orientation and cable reach.
Group 31 describes the case size, not complete electrical compatibility. The motor voltage, maximum current, charging profile and required runtime must also match the battery specification.
This battery is designed for compatible 12V trolling motors used on fishing boats, kayaks and small marine craft. Check the motor's operating voltage, normal current and maximum current before selecting the battery.
A safe installation includes a correctly rated fuse or circuit breaker close to the positive terminal, a battery disconnect switch, marine-grade cables, properly crimped lugs and insulated terminal covers. Secure the battery in a protected compartment rather than placing it loose on an exposed deck.
The integrated 100A battery management system monitors the cells during charging and discharge. It protects the battery when voltage, current or temperature moves outside the approved operating limits.
The 100A continuous rating does not make the battery compatible with every trolling motor or electric propulsion system. Confirm normal current, acceleration current and maximum load before installation.
When the cell temperature falls below 0°C, the BMS pauses charging to protect the battery. Charging can resume when the cells reach the approved recovery temperature. Discharge remains available within the specified discharge-temperature range.
This model provides low-temperature protection but does not include self-heating. For winter use, keep the battery in a dry, protected compartment and use LiFePO4-compatible charging equipment.
This Group 31 LiFePO4 battery can replace a compatible AGM or flooded lead-acid deep-cycle battery when the mechanical and electrical requirements match. Do not select a replacement using voltage and case size alone.
Before installation, confirm:
Read our lead-acid to LiFePO4 battery replacement guide for more information about charger, cable, fuse and system compatibility.
Use a charger or charge controller with a LiFePO4-compatible CC/CV profile. Charging voltage and current should follow the battery Datasheet and the requirements of the connected marine system.
| Charge Method | CC/CV |
|---|---|
| Charge Voltage | 14.4V ± 0.2V |
| Recommended Charge Current | 20A |
| Maximum Continuous Charge Current | 100A |
| Charge Temperature | 0°C to 50°C / 32°F to 122°F |
Suitable charging arrangements include:
Do not connect a solar panel, alternator, generator or AC power source directly to the battery without appropriate charge-control equipment.
| Battery Chemistry | LiFePO4 |
|---|---|
| Nominal Voltage | 12.8V |
| Rated Capacity | 100Ah |
| Nominal Energy | 1,280Wh |
| BMS | 100A |
| Maximum Continuous Output Power | 1,280W |
| Maximum Continuous Charge Current | 100A |
| Maximum Continuous Discharge Current | 100A |
| Maximum Discharge Current | 300A for 5 seconds / 500A for 1 second |
| Charge Method | CC/CV |
| Charge Voltage | 14.4V ± 0.2V |
| Recommended Charge Current | 20A |
| 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 |
| Low-Temperature Charge Cutoff | Below 0°C / 32°F |
| Charging Recovery | At or above 5°C / 41°F |
| Low-Temperature Discharge Cutoff | Below −20°C / −4°F |
| Terminal Type | M8 bolts |
| Dimensions | 13 × 6.77 × 8.43 in |
| Case Size | Group 31 |
| Weight | Approximately 23.4 lb |
| Housing Material | ABS |
| Protection Rating | IP65 |
| Bluetooth | Not included |
| Self-Heating | Not included |
Matching batteries may be connected in series or parallel only when the battery model and BMS are approved for the required arrangement. Use batteries of the same model, capacity, production batch and state of charge.
Parallel branches should use equal-length cables and suitable branch protection. Confirm the main fuse, disconnect switch, cable size and charging configuration before building a multi-battery system.
Explore our marine LiFePO4 battery solutions for trolling motors, onboard electronics, house-power systems and custom marine projects.
Custom LiFePO4 battery solutions are available for boat builders, marine-equipment companies, distributors, system integrators and private-label battery brands.
It is suitable for compatible 12V trolling motors when the motor's normal current, maximum current and required runtime remain within the battery's approved operating limits.
It can replace a compatible Group 31 deep-cycle battery when the tray, terminal position, voltage, current requirement and charging equipment match. Group size alone does not confirm compatibility.
This is a deep-cycle battery, not an engine-starting battery. Starting and dual-purpose applications require a model with separately tested CCA and MCA ratings.
Only when the charger's maximum voltage, current and charging profile are compatible with the LiFePO4 battery specification. Use a matched LiFePO4 charger when compatibility cannot be confirmed.
No. This version does not include Bluetooth monitoring or self-heating. It includes low-temperature protection that pauses charging below the approved temperature limit.
Only when the battery model and BMS are approved for the required arrangement. Follow the connection limits, cable sizing, fuse requirements and charging instructions in the product Datasheet.
Send us the trolling motor model, required voltage, maximum current, expected runtime and battery-compartment dimensions. Our technical team will review the application and recommend a suitable battery configuration.
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.
