A single 36V 100Ah LiFePO4 battery provides dependable power for electric trolling motors used on fishing boats and other small marine vessels. The integrated design replaces three separate 12V batteries in series, reducing cables, connection points and installation complexity.
This marine battery project covers battery sizing, Smart BMS protection, charger compatibility, circuit protection, secure mounting and OEM configuration.
The battery system was configured around the trolling motor voltage, maximum current, required runtime, available installation space and onboard charging equipment.
The following specifications apply to this 36V trolling motor battery configuration. Enclosure dimensions, terminals, communication functions and optional features can be adjusted for approved OEM requirements.
| Battery Chemistry | LiFePO4 |
|---|---|
| System Voltage | 36V |
| Nominal Voltage | 38.4V |
| Rated Capacity | 100Ah |
| Nominal Energy | 3840Wh |
| Continuous Discharge Current | 100A |
| Nominal Continuous Output | 3840W |
| Recommended Charger | 43.8V 25A LiFePO4 charger |
| Charging Method | CC/CV |
| Battery Monitoring | Bluetooth monitoring available |
| Communication Options | CAN or RS485 for qualified OEM projects |
| Terminal Configuration | M8 or project-specific terminals |
| Battery Enclosure | Standard or custom marine configuration |
Final dimensions, charging limits, terminal layout, communication functions and environmental protection depend on the approved battery specification.
Runtime depends on motor current, speed setting, vessel weight, wind, water conditions and usable battery capacity. The estimates below are calculated using 80Ah, or 80% of the battery’s rated capacity.
| Average Motor Current | Estimated Runtime |
|---|---|
| 20A | Approximately 4 hours |
| 40A | Approximately 2 hours |
| 60A | Approximately 1.3 hours |
| 80A | Approximately 1 hour |
Estimated Runtime = Usable Battery Capacity ÷ Average Motor Current
These values are engineering estimates rather than measured runtime results. Actual performance varies with the trolling motor, propeller, speed setting, vessel load and operating conditions.
A single 36V LiFePO4 battery simplifies the electrical system by replacing three separate 12V batteries and their series connections.
The battery must be secured against vessel movement and installed with correctly rated cables, circuit protection and terminal covers. Installation requirements depend on the trolling motor current, cable length and battery location.
The fuse and cable sizes must be selected according to the trolling motor current, cable length and applicable installation requirements.
The battery requires a charging profile suitable for a 38.4V nominal LiFePO4 battery system. A 43.8V LiFePO4 charger can be used when its output current and charging profile meet the approved battery specification.
Before connecting a charger, confirm:
A charger designed only for lead-acid batteries should not be retained unless its charging parameters have been confirmed as compatible with the LiFePO4 battery.
The integrated Smart BMS monitors the battery and provides protection when operating conditions move outside the approved limits.
Available functions can include:
Optional communication and monitoring functions should be confirmed before sample production.
Each battery is checked against the approved product specification before shipment. Inspection and testing cover electrical performance, BMS protection, assembly quality and communication functions where required.
With more than 20 years of battery manufacturing experience, we support boat builders, marine equipment suppliers, battery brands and system integrators with custom trolling motor battery development and production.
OEM and private-label options include:
Yes. A single 36V LiFePO4 battery can replace three 12V batteries connected in series when the trolling motor voltage, battery capacity, discharge current and charging equipment are compatible.
Runtime depends on average motor current and operating conditions. Using 80Ah as the estimated usable capacity, a 20A load may operate for about four hours, while a 40A load may operate for about two hours.
Only when its output voltage, charging profile and current limits are suitable for the battery specification. A dedicated 43.8V LiFePO4 charger is generally recommended.
Bluetooth monitoring is available for this battery configuration. CAN and RS485 communication can also be configured for qualified OEM projects.
Yes. Battery dimensions, enclosure, terminal positions, connectors, cables and mounting points can be reviewed for qualified OEM projects.
Please provide the trolling motor voltage and model, maximum current, required runtime, available installation dimensions, charger information and estimated order quantity.
Send us the trolling motor voltage and model, maximum current, required runtime, battery compartment dimensions, charger specifications, communication requirements and estimated order quantity.
Our engineering team will review the application and recommend a suitable LiFePO4 trolling motor battery configuration for sample testing or volume production.
