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When should I replace my trolling motor battery?

3 min read

Asked by: Alex Webb

The average lifespan of a trolling motor battery depends on the type of battery as shown below: Wet lead acid batterieslead acid batteriesLead–acid batteries are used in emergency lighting and to power sump pumps in case of power failure. Traction (propulsion) batteries are used in golf carts and other battery electric vehicles.

How often should I replace trolling motor batteries?

around 2-3 years

Lead-acid wet cell batteries are one of the most common types of batteries to use with trolling motors. They are an affordable option that can handle the everyday uses of a trolling motor. They typically last around 2-3 years and may require some sort of maintenance.

How long does a 12 volt battery last on a trolling motor?

In more technical terms, a 100 amp hour rated battery can deliver 100 amp hours of current to a trolling motor. So if a motor was running at low speed and pulling 4 amps, the battery should last around 25 hours. (100 amp hour rating / 4 amps = 25 hours).

How do you tell how long a battery will last with trolling motor?

Motors draw different amounts of current from the battery depending on the motor size and speed it is turning. With this information, just divide the amp hour rating on your battery by the amp draw of your motor. This will give you an estimated battery life for your trolling motor.

How do you know if a trolling motor battery is good?


Level in order to check the overall health of your battery. You will need to use the load tester the load tester applies a 100 amp load to the battery.

What size battery do I need for a 55 lb thrust trolling motor?

Using a Newport Vessels 55lb thrust motor continuously for two hours at full speed would require a battery with a 100-120 AH rating.

How long does a trolling motor last on a fully charged battery?

The larger the rating, the more power the battery can hold, and the longer it will be able to power a motor at a given speed. For example, a 100 amperage hour battery is one that would be able to supply 25 amps of power for 4 hours (25 amps * 4 hours = 100 amp hours) before running out of energy.

How do I know if my deep cycle battery is bad?

For deep cycle application if the battery holds under load for a few seconds then voltage starts to steadily drop this would indicate a problem with the battery. If the voltage instantly drops to 0 volts, that is also a problem.

What voltage is too low for a 12-volt battery?

12.0 volts or below – At 12.0 volts your battery is considered to be fully discharged or ‘flat’ and should be recharged as soon as possible. The lifespan of your battery will be severely affected if it remains within this voltage range for extended periods of time.

How long does a deep cycle marine battery last?

Used correctly, deep cycle batteries can provide 200 to more than 3000 discharge/charge cycles. Starting batteries are not designed for sustained discharge and will last for only 50-60 use cycles.

Should you trickle charge a deep cycle battery?

Since deep cycle batteries generally have a lower discharge rate, trickle charging would largely be ineffective and its role of maintaining the battery charge level may become redundant. As a result, one should not trickle charge a deep cycle battery.

Can you rejuvenate a deep cycle battery?

Fill each of the battery’s cells with distilled water and baking soda solution. Using a funnel, go gently with this approach. Replace the battery caps. For around 30 seconds, shake the battery.