There are a number of things to take into account when choosing a trolling motor battery to your needs: Type of battery, amperage hour rating, and budget.

What type of battery do I need for my best-trolling motor batteries?

You Want a Deep Cycle or Marine Battery.

What are the various Sorts of Deep Cycle Batteries?

No, car batteries are not recommended and can ruin your motor.

What’s the cheapest alternative?

Lead Acid Wet Cell batteries are the most inexpensive option for your trolling motor. We frequently recommend this 35ah battery, this 55ah battery, this 70ah battery, or this 100ah battery on Amazon.

DEEP CYCLE VS STARTER BATTERIES:

Most consumers are familiar with big and hefty car batteries, but there are actually two kinds of batteries which fit this description: Hybrid batteries and deep cycle batteries. Deep-cycle batteries are designed for discharging small amounts of current over a lengthy period of time (ex. On the other hand, starter batteries are designed to release a large current for a brief amount of time (ex. Starting a car engine). Starter batteries are not designed to constantly have their bill dropped below 50%, only to be recharged over and above. Having this kind of use, beginner batteries will not last very long. Regularly using a starter battery with a trolling motor can ruin both the battery as well as the motor.

There are two varieties of deep-cycle 12-volt batteries that are advocated for electric trolling motor usage: Burn Acid Wet-Cell & AGM batteries.

Lead Acid Wet-Cell: Lead Acid Wet-Cell batteries are the most common and reasonably priced option for trolling motors, and generally last about 2-3 years. They generally cost less than $100 but are vulnerable to vibrations and spillage, additionally they do require some maintenance.

Wet-Cell describes the cells/plates in the battery being”bombarded” or submerged in an electrolyte fluid, a mix of water and sulfuric acid. If the battery is overcharged too often, the water level will fall, to maintain proper water level, intermittent top offs with distilled water are necessary. If the electrolyte level drops enough to expose the cells and plates, the battery can be damaged and enhance the usable life of this battery.

Recommendation: Check the electrolyte level prior to each usage, top off as necessary.

AGM Batteries: AGM batteries are more economical than their Wet-Cell counterparts, so they’re completely sealed, maintain their charge longer, and also have a longer usable lifespan. AGM batteries are sealed and thus do not require maintenance; using a trusted life so long as 4 years, they come at a higher price than equal Wet-Cell units.

AGM stands for Absorbed Glass Mat and can also be referred to as a Valve-Regulated Lead-Acid Battery (VRLA) or Sealed Lead-Acid (SLA) battery. Unlike Wet-Cell components, the electrolytes are held in glass mats instead of fluid, these glass mats comprise of very thin glass fibers which are woven into a pad to make the most of the surface area. This increase in the surface area is enough to maintain electrolytes in the cells due to their life, making the battery more pliable, spill proof, and less prone to vibration damage.

Amp Hour Rating determines how long you’ll have the ability to run the engine, it’s the actual amount of charge the battery can store. The longer you want to conduct your trolling motor, the more amp hours you want.

A more technical definition is the quantity of charge in a battery which will allow 1 ampere of current to flow for a single hour and how much energy can be saved by the battery itself. By way of instance, an 80 AH battery will be able to discharge 100 amp hours of current to a trolling motor and will continue more than the usual 50 AH batterycharger. Simple math will have the ability to ascertain how long a engine will run using a battery. If a trolling motor pulls 52 amps at full rate while connected to some 50 AH battery, then the battery will probably last about 0.96 hours. More information are available on our Calculating Trolling Motor Run Time page.

Deciding on the correct battery amperage hour evaluation is dependent entirely on the planned use. Employing a Newport Vessels 55lb thrust engine continuously for two hours at full rate would expect a battery using a 100-120 AH rating. On the reverse side, two hours at reduced speeds with breaks will only want a battery between 50-100 AH score. By using the equation above, an estimate can be made to determine the battery that will best fit your requirements.

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