Buy Electric Boat
← All categories

Marine Lithium Batteries

LiFePO4 lithium batteries for trolling motors and electric outboards. They weigh about a third as much as lead-acid and hold voltage longer under load. Match battery voltage to your motor. New to electric boating? Start with our buying guide, or read how to size a lithium battery.

As an Amazon Associate we earn from qualifying purchases. Product links on this page lead to Amazon listings and may earn us a small commission at no extra cost to you.
LiTime

12V 100Ah Trolling Motor LiFePO4 Battery

$$

A 12V 100Ah lithium battery marketed for trolling motors and marine use.

Shop on Amazon
LiTime

12V 100Ah Group 31 LiFePO4 Battery

$$

A Group 31-size 12V 100Ah lithium battery that fits common marine battery trays.

Shop on Amazon
HQST

12V 100Ah LiFePO4 Battery, Group 22NF Mini

$

A compact 12V 100Ah battery with an LED meter, for tight spaces in kayaks and small boats.

Shop on Amazon
Redodo

24V 50Ah Group 24 Trolling Motor LiFePO4 Battery

$$

A single 24V battery for 24V trolling motors, replacing two 12V batteries.

Shop on Amazon
Redodo

24V 100Ah Marine Lithium Battery

$$$

Double the capacity of the 50Ah pack for long days on 24V motors.

Shop on Amazon
LiTime

36V 50Ah Bluetooth Lithium Trolling Motor Battery

$$$

A single 36V battery with Bluetooth monitoring for 36V motors such as the Newport NT300.

Shop on Amazon
LiTime

36V 100Ah Lithium Battery with 25A Charger

$$$

A high-capacity 36V pack bundled with a matched charger.

Shop on Amazon

How to choose a marine lithium battery

  • Voltage: match your motor: 12V, 24V or 36V. You can also wire 12V batteries in series.
  • Capacity: 50Ah suits kayaks and short trips. 100Ah is the common choice for a full day on a 30–55 lb motor.
  • Size: check the group size (24, 27, 31 or mini) against your battery tray or box.
  • Charger: lithium needs a LiFePO4 charging profile. See chargers & solar.

Work out run time step by step in our lithium battery sizing guide.

⚙

Manage Catalog