If you’re upgrading to a LiFePO4 battery for your trolling motor, a common question arises: Can a single 12V LiFePO4 battery run a 24V trolling motor? The short answer is no — but with the right setup, you can efficiently power your 24V system using LiFePO4 technology.

    Why 12V Alone Isn’t Enough

    Trolling motors require voltage to match their design specifications. A 24V motor needs 24V input to operate optimally. A single 12V LiFePO4 battery (nominal 12.8V) cannot provide the required voltage, even if it has high capacity (e.g., 100Ah or 150Ah). Attempting to use it alone risks underpowering the motor, reducing thrust, and potentially damaging the battery’s BMS (Battery Management System).

    The Solution: Series Connection

    To power a 24V trolling motor:

    Connect two 12V LiFePO4 batteries in series—this combines their voltage while maintaining capacity (e.g., 2×12V 100Ah = 24V 100Ah).

    Ensure BMS compatibility: LiFePO4 batteries with built-in 100A+ BMS (like Powerurus’s 12V 100Ah model) handle continuous discharge currents up to 100A, ideal for motors like Minn Kota 70-90lb thrust.

    Verify safety features : Look for IP67 waterproofing, low-temperature cutoffs (-4°F), and Bluetooth monitoring (e.g., Renogy’s DC Home App) to protect your investment.

    Benefits of LiFePO4 for 24V Systems

    Longevity: LiFePO4 batteries offer 4,000–15,000 deep cycles, outperforming lead-acid’s 500 cycles.

    Weight savings: At 1/3 the weight of lead-acid, they’re ideal for marine use.

    Fast charging: Recharge in 2 hours vs. 14 hours for lead-acid.

    Key Considerations

    Voltage limits: Never exceed 14.8V per 12V battery during charging.

Parallel vs. series: Series increases voltage; parallel increases capacity. For 24V motors, series is mandatory.

    Pro Tip: Powerurus offer 24V LiFePO4 Battery with Bluetooth monitoring, simplifying setup for motors requiring 70–115lb thrust.

    By combining two 12V LiFePO4 batteries in series, you unlock efficient, eco-friendly power for your 24V trolling motor—with 10x the lifespan of lead-acid. Always prioritize BMS safety and voltage compatibility for optimal performance.