Lithium Trolling Motor Batteries

Dominate the Water with Premium Lithium Trolling Motor Batteries

Wind, current and GPS anchoring expose the weaknesses of an aging lead-acid bank fast. Multiple heavy batteries can slow a boat's holeshot and still leave the trolling motor feeling weaker late in the day. For tournament anglers, kayak fishermen and weekend boaters, fading thrust can mean losing boat control just when the bite turns on.

Epoch lithium trolling motor batteries replace that maintenance-heavy setup with lighter LiFePO4 power designed for steady deep-cycle performance. A correctly sized battery helps a compatible motor stay responsive while working shorelines, fighting current or using GPS anchor modes such as Minn Kota Spot-Lock in heavy wind.

The best lithium battery for a trolling motor matches the motor's required voltage, maximum current draw and desired runtime. Epoch offers compact 12V options for kayaks and small boats, native 24V batteries for mid-sized rigs and single 36V lithium batteries for high-thrust tournament and offshore systems.

Why Anglers Are Ditching Lead-Acid for Lithium

• More consistent thrust: Lead-acid voltage declines as capacity is used and drops further under heavy load. LiFePO4 maintains a flatter voltage curve, helping a compatible trolling motor deliver steadier performance through most of the usable charge. Actual thrust still varies with motor design, propeller load, weeds, wind and current.
• Major weight reduction: A 100Ah flooded or AGM marine battery commonly weighs about 60 to 70 pounds, so a three-battery 36V bank can approach 180 to 210 pounds before cables and hardware. Epoch's 36V 50Ah battery weighs about 35 pounds, while the 36V 100Ah model weighs about 75 pounds. Removing excess weight can improve holeshot, handling and shallow-water draft, depending on hull design and load placement.
• More usable energy: Lead-acid systems are commonly planned around roughly 50% depth of discharge to protect cycle life. Epoch LiFePO4 batteries support much deeper cycling within each model's limits, making substantially more of the rated capacity available. Runtime depends on average motor current, speed setting and conditions.
• No watering or acid cleanup: There is no electrolyte level to check or distilled water to add. Normal marine inspections still matter, including terminal torque, hold-downs, cable condition, breakers, fuses and corrosion protection.

36V LiFePO4 vs. Lead-Acid Voltage Discharge Curve

This representative graph shows why a 36V LiFePO4 trolling motor battery can feel stronger for longer. A 38.4V-nominal LiFePO4 pack stays near its working voltage through most of the discharge, while a 36V lead-acid bank made from three 12V batteries loses voltage more progressively as capacity is used.

Sizing Your Setup: 12V, 24V and 36V Trolling Motor Batteries

Battery voltage must match the motor. Check the motor manual for maximum amp draw, then confirm that the battery's continuous-discharge rating, wiring, breaker and connectors can support it. Thrust ranges below are common guides, not substitutes for the manufacturer's specifications.

12V Lithium Trolling Motor Batteries

A 12V 50Ah lithium trolling motor battery is a lightweight trolling motor battery for many compact 30- to 45-pound-thrust motors, jon boats, canoes and kayaks when motor draw stays within its 50A continuous rating. At about 14.3 pounds, it is easy to carry and position without overwhelming a kayak's payload, making it a practical kayak trolling motor battery. For longer runtime or higher current, the 12V 105Ah heated Bluetooth battery provides 105A continuous output and 1.34kWh in a roughly 22.1-pound Group 24 case.

24V Lithium Trolling Motor Batteries

A 24V trolling motor battery is commonly used with 70- to 90-pound-thrust systems on mid-sized bass boats, bay boats and pontoons. Epoch's 24V 60Ah Pro Series battery weighs about 30 pounds and provides 80A continuous output, Bluetooth monitoring, internal heating and an IP67 enclosure. For more runtime, the 24V 100Ah marine lithium battery stores 2.56kWh and supports 120A continuous discharge.

36V Lithium Trolling Motor Batteries

A 36 volt lithium trolling motor battery is built for compatible high-thrust motors on large tournament boats and offshore center consoles. The 36V 50Ah Essential Series battery stores 1.92kWh, weighs about 35 pounds and supports 100A continuous discharge. For long days of GPS anchoring or heavy-current fishing, the 36V 100Ah marine trolling motor battery stores 3.84kWh and supports 120A continuous output.

The Single-Battery Revolution: Save Weight, Space and Wiring

Traditional 24V systems use two 12V batteries in series, while 36V systems use three. Every extra battery takes up tray space and adds another jumper, terminal and potential corrosion point. A native-voltage Epoch battery can replace that bank when voltage, usable energy, current output, charger profile and fitment all match. One 24V battery can replace two compatible 12V batteries, and a single 36 volt lithium trolling motor battery can replace three.

Compare watt-hours and expected runtime rather than amp-hours alone, and use a voltage-matched LiFePO4 charger. When building voltage from separate 12V batteries, confirm that the exact model permits series use and install matched batteries of the same model, age, capacity and state of charge.

Compatibility with Minn Kota, Garmin, Lowrance and Power-Pole

Epoch batteries can support many correctly specified systems from major brands, including Minn Kota Ultrex, Terrova and Riptide Instinct, including QUEST models; Garmin Force and Kraken; Lowrance Ghost; and Power-Pole MOVE. Compatibility depends on voltage and current, not the logo on the motor.

For Minn Kota lithium battery compatibility, a Garmin Force lithium battery upgrade or another brand-specific setup, verify motor voltage, maximum amp draw, breaker size, cable gauge and manufacturer battery guidance. Choose a battery whose continuous-output rating supports the demand. The integrated BMS helps protect against overcharge, excessive discharge, overcurrent, short circuits and unsafe temperatures, but it does not replace properly sized wiring and circuit protection.

The Epoch Advantage: Built for Demanding Marine Conditions

Protection levels vary by model. Select Pro and high-capacity marine batteries are IP67 rated for dust and temporary water exposure. The 36V 50Ah model is IP65 rated for dust, spray and water jets, while compact Essential models may be IP54. Check the individual listing, secure the battery against movement and avoid prolonged submersion, standing water and pressure washing.

Bluetooth-equipped models connect to the Epoch app so anglers can check state of charge, voltage, current, temperature and battery status from a compatible phone. This is especially useful because LiFePO4's flat discharge curve makes voltage alone an imprecise state-of-charge gauge through the middle of the cycle.

Select heated models use incoming charging power to warm the cells before normal charging begins in freezing conditions, supporting early-spring and late-season fishing. Heating, Bluetooth, cycle life and environmental ratings vary by product. Epoch trolling motor batteries carry limited warranties of up to 11 years (6 years on the Eco Series), each starting with 3 or 5 years of free coverage depending on the series, then 40% off MSRP on a replacement battery.

Choose the correct voltage, compare usable energy and continuous output, and verify the charger and wiring before installation. The right Epoch LiFePO4 trolling motor battery provides lightweight, maintenance-free power to hold position longer and fish with greater confidence from launch to weigh-in.