A high-quality lithium LiFePO₄ deep cycle battery is one of the best choices for trolling motors because it delivers lightweight, long life, and stable power. The LiTime 12V 100Ah trolling motor battery with Bluetooth monitoring and robust BMS is a strong option for reliable on-water use.

For a 30 lb thrust motor, a 12V 100Ah battery is typically suitable for several hours of moderate use, while larger capacity batteries extend runtime—so the LiTime 12V 100Ah deep cycle lithium battery is a good balance of size and performance for this class of motor.

Normally, it's not recommended to use a battery designed for a trolling motor in an electric outboard motor since the surge discharge current might not be sufficient. Outboard motors often require higher power for acceleration and sustained operation, which can lead to higher surge currents that trolling motor batteries may not handle well.

If you’re planning to use an electric outboard motor, it’s best to invest in a battery specifically designed for such applications like LiTime Outboard Motor Batteries. These batteries are built to handle the high power requirements and ensure optimal performance and safety.

Read on Electric Outboad Motor VS Trolling Motor for more detailed information.

The run time of your trolling motor depends on the amp hour (Ah) capacity of your battery and the motor's current draw. Follow this simple formula:

Run Time (hours) = Battery Capacity (Ah) / Motor Current Draw (A)

For example:

Your trolling motor draws 54A at full throttle. You have a 100Ah battery.

Run Time = Battery Capacity / Current Draw

= 100Ah / 54A

= 1.85 hours

= 1 hour and 51 minutes

So the 100Ah battery would run the 54A motor for about 1 hour 51 minutes at full speed.

To find low speed run time:

If the motor draws 10A at half throttle.

Run Time = Battery Capacity / Current Draw

= 100Ah / 10A

= 10 hours

No. LiTime LiFePO4 lithium batteries are not intended to be used as starting batteries but deep cycle energy storage, please do not use them to start any devices.

If you need the marine starting batteries, visit LiTime 12V 20Ah Marine Cranking or 12V 140Ah Dual Purpose battery to choose.

For more information to tell the differeces among these 2 types batteries, read on our blog Deep Cycle VS Starting Marine Battery.

LiTime 12V 100Ah TM LiFePO4 batteries can charge between 32°F to 113°F (0°C to 45°C). The 12V 100Ah TM version has low-temperature charging protection function, it would cut off charging when it's below 0℃.

1. Using Solar Panels

The battery can be fully charged in one day (with effective sunshine 4.5 hrs/day) by 300W solar panels. It may take more than one day to fully charge the battery by ≥300W solar panels since the duration and intensity of light would be a great factor for their charging efficiency.

Besides solar panels, there are 2 more ways to charge. Suggest reading: 3 reliable ways to charge LiFePO4 lithium batteries

2. Generator/Alternator

If the alternator or generator supports DC output, a DC-to-DC charger is needed to connect the battery to the generator; if your alternator or generator supports AC output, please add a suitable battery charger to connect the battery and the generator according to our recommendations. The Recommended Charging Voltage:  14.2V - 14.6V. The Recommended Charging Current: ① 20A (0.2C): the battery will be fully charged in around 5 hrs to 100% capacity; ② 50A (0.5C): the battery will be fully charged in around 2 hrs to around 97% capacity.

3. LiFePO4 Smart Chargers

To charge 12V battery, it is recommended to use 14.6V battery charger.

The Recommended Charging Voltage:  14.2V - 14.6V.

The Recommended Charging Current: ① 20A (0.2C): the battery will be fully charged in around 5 hrs to 100% capacity; ② 50A (0.5C): the battery will be fully charged in around 2 hrs to around 97% capacity.

During use, inconsistencies between cells can increase over time. When connecting too many batteries in parallel, this can cause faster degrading batteries to trigger protection and fail prematurely. Therefore, paralleling more batteries is not always better. The industry standard maximum is 4 paralleled batteries.

Use batteries of the same model, age, and similar SOC, and charge the series bank with a compatible LiFePO4 charger matched to the total system voltage. If battery voltages begin to drift, disconnect the series connection and fully charge each battery individually before reconnecting them.

If one battery enters BMS protection, disconnect the system and check each battery individually. Use a compatible LiFePO4 charger with activation to wake the protected battery, then bring all batteries to a similar voltage/SOC before reconnecting the series bank.

Yes. LiTime Deep Cycle Trolling Motor Lithium Batteries meet the ABYC E-13 standard, ensuring they are safe and compliant for use in marine environments.

Whether you're powering a trolling motor, fish finder, or other onboard electronics, you can trust LiTime batteries to deliver reliable, marine-grade performance.