Marine & Trolling Motor Batteries

Marine & Trolling Motor Batteries

12V and 24V LiFePO4 batteries for trolling motors, house banks, and marine applications. Waterproof, lightweight, and deep-cycle rated.

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Marine & Trolling Motor Batteries

Marine power guide

Choose by motor type and boat size.

Match battery voltage to your trolling motor. Higher thrust motors often need 24V or 36V. Check motor manual for amp draw.

  • Trolling Motor

    12V, 24V, and 36V for Minn Kota, MotorGuide, and similar motors.

  • House Bank

    Power electronics, fridge, and navigation equipment at anchor.

  • Starter Battery

    High cranking current for outboard engine starts. Check CCA rating.

  • Kayak & Small Craft

    Lightweight power for trolling and electronics on small boats.

Marine battery care

Marine battery maintenance tips.

Saltwater environments are tough on batteries. Rinse, inspect, and protect terminals for reliable performance.

  • Charging

    Use a LiFePO4-compatible marine charger. Rinse terminals with fresh water after salt use.

  • Storage

    Store at 50% charge. Remove from boat during off-season for best longevity.

  • Installation

    Use marine-grade tinned copper cables. Secure battery box or strap to prevent movement.

  • Troubleshooting

    If motor loses power, check BMS status, terminal corrosion, and connection tightness.

FAQ

Marine & Trolling Motor Battery FAQ

Answers to common questions about LiFePO4 batteries for boats and trolling motors.

Buying questions
Is LiFePO4 safe on a boat?

Yes, LiFePO4 cells are sealed, contain no liquid acid, and produce no gas during normal operation. They are safer than lead-acid on the water.
What voltage trolling motor battery do I need?

Match the battery to your motor: 12V motors need 12V battery, 24V motors need 24V (or two 12V in series), 36V motors need 36V (or three 12V in series).
Can I use a marine LiFePO4 as a starter battery?

Check the CCA (cold cranking amp) rating. Some LiFePO4 batteries support engine cranking. Ensure the BMS can handle the surge current of your starter motor.
How long will my trolling motor run?

Runtime depends on motor thrust setting and battery Ah. A 55lb thrust motor on medium draws about 30A. A 100Ah battery gives roughly 3+ hours at medium speed.
Do I need a special marine charger?

Yes, a LiFePO4-compatible charger is required. Marine on-board chargers must be LiFePO4-rated. Check your charger manual or upgrade to a LiFePO4-compatible model.
How does the weight savings help my boat?

LiFePO4 is about 60% lighter than equivalent lead-acid. This improves boat speed, handling, fuel economy, and increases available payload for gear and passengers.

Fit confidence

Not sure which marine battery to choose?

Tell us your motor brand, thrust rating, and boat type. We will match the right battery and capacity.