12V 100Ah Group 31 LiFePO4 Battery for Trolling Motors
$169.00
This 12V 100Ah LiFePO4 marine battery is built for compatible electric outboard motors, 12V trolling motors and onboard deep-cycle loads. It stores 1280Wh in a Group 31 case and combines Bluetooth monitoring with a 100A Smart BMS.
Short-duration discharge capability supports changing propulsion loads, while low-temperature protection and an IP65 enclosure help protect the battery in properly installed fishing-boat and small-craft systems.
Application notice: This is a deep-cycle marine lithium battery for electric propulsion and onboard DC loads. Do not use it to crank or start a gasoline or diesel engine.
Provides 100Ah of capacity for compatible electric motors and onboard equipment.
Handles changing motor loads within the confirmed continuous and surge-current limits.
Check state of charge, voltage, current, temperature and operating status.
Manages charging, discharging, temperature, overcurrent and short-circuit protection.
This 12V lithium marine battery is intended for correctly sized propulsion and house-power systems. It can supply compatible electric outboard motors, trolling motors, lighting, fish finders, navigation electronics and pumps without being connected to a fuel-engine starting circuit.
For compatible 12V electric propulsion systems after voltage, continuous current and peak load are verified.
Stable deep-cycle power for compatible trolling motors on fishing boats and small craft.
Energy for properly fused lighting, navigation equipment, pumps and other onboard DC loads.
Electric propulsion systems can draw short bursts of current during acceleration or changing water resistance. The 100A Smart BMS provides the following discharge limits for compatible loads.
| Operating condition | Current | Maximum duration |
|---|---|---|
| Rated BMS current | 100A | Continuous |
| Extended surge | 150A | 180 seconds |
| Short surge | 300A | 10 seconds |
| Instantaneous surge | 500A | 1 second |
Confirm motor voltage and current requirements before installation. These surge ratings do not make the battery suitable for engine cranking.
Bluetooth monitoring lets boat owners, installers and service teams inspect the battery without opening the compartment during routine checks.
The BMS stops charging below 0°C / 32°F and permits charging again after the cells return to the specified recovery temperature. Discharge protection operates at the confirmed low-temperature limit.
Install the battery in a dry, ventilated and secured internal compartment. An IP65 enclosure does not permit submersion or installation where seawater can collect.
Up to five matched batteries may be connected in series and up to five in parallel when the installation follows the product manual and the connected equipment accepts the resulting voltage range.
| Configuration | Nominal battery bank | Stored energy |
|---|---|---|
| 1 battery | 12.8V 100Ah | 1.28kWh |
| 2 in series | 25.6V 100Ah | 2.56kWh |
| 3 in series | 38.4V 100Ah | 3.84kWh |
| 4 in series | 51.2V 100Ah | 5.12kWh |
| 5 in series | 64V 100Ah | 6.40kWh |
Use batteries of the same model, capacity, age and state of charge. Confirm the motor's actual operating-voltage range; a five-battery string is a 64V nominal bank, not a universal 60V solution.
| Battery chemistry | LiFePO4 |
|---|---|
| Nominal voltage / capacity | 12.8V / 100Ah |
| Stored energy | 1280Wh |
| BMS / continuous output | 100A Smart BMS / 1280W |
| Maximum charge current | 100A |
| Short-duration discharge | 150A / 180s; 300A / 10s; 500A / 1s |
| Cycle life | 4000 cycles at 100% DOD; 6000 at 80% DOD; up to 15,000 at 60% DOD |
| Expansion | Up to 5S5P |
| Charge method / voltage | CC/CV / 14.4V ± 0.2V |
| Recommended charge current | 20A |
| Charge / discharge temperature | 0°C to 50°C / -20°C to 60°C |
| Monitoring / terminal | Bluetooth / M8 bolts |
| Case / dimensions | Group 31 / 13 × 6.77 × 8.5 in (330 × 172 × 216 mm) |
| Weight / housing | Approx. 22.6 lb (10.3 kg) / ABS |
| Protection class | IP65 |
| Fuel-engine starting | Not permitted |
Use a LiFePO4-compatible CC/CV charger set to 14.4V ± 0.2V. A 20A charge current is recommended for routine charging.
The Group 31 case supports projects replacing a traditional Group 31 lead-acid or AGM battery with LiFePO4. Case size alone does not confirm electrical compatibility.
Before replacement, check the tray dimensions, charger profile, motor voltage, cable size, fuse rating, continuous current and maximum load.
It can power a compatible 12V trolling motor when the motor's continuous and peak-current requirements remain within the battery limits. Check the motor label and manual before connecting it.
Yes, for a compatible electric outboard system. Confirm nominal voltage, maximum operating voltage, continuous current and acceleration current with the motor manufacturer. This battery is not intended to start a gasoline or diesel outboard.
It can replace many Group 31 deep-cycle batteries when the physical fit, charger profile, load current, cable size and fuse protection are compatible. Review the complete system rather than relying on case size alone.
Use a LiFePO4-compatible CC/CV charger with a charge voltage of 14.4V ± 0.2V. A 20A charger is recommended for routine charging. Solar panels require an MPPT controller, and alternator charging should use a suitable DC-to-DC charger.
The BMS stops charging below 0°C / 32°F to protect the cells. Charging resumes only after the battery returns to the specified recovery temperature. This protection is not a self-heating function.
Matching batteries can be connected in series within the confirmed 5S5P limit. Use the same model, age, capacity and state of charge, and confirm the motor's actual voltage range. Each circuit also requires correctly sized cables, isolation and overcurrent protection.
Yes. OEM and ODM options may include BMS settings, case design, terminal layout, communication, labels and packaging. Send the motor specification, installation dimensions, charging method and expected order quantity for an engineering review.
Factory-Direct Marine Battery Supply
We support boat builders, electric propulsion companies, marine installers, distributors and private-label brands with battery specification, BMS configuration, enclosure design, terminal options, labelling and production supply.
Send the motor voltage, continuous current, peak current, installation dimensions, charging equipment and expected order quantity for a compatibility review.
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.
