Instead, the same 12-volt, 100 amp-hour battery 12V lifepo4 battery would last four hours if you kept the trolling motor at half power. Lead-acid batteries for trolling motors come in 12 volts, but trolling motors themselves come in 12 volts, 24 volts and 36 volts. The voltage of your trolling motor determines how many batteries you need.

So your choice of battery is going to depend on what you can afford. If you want a battery that is durable and delivers excellent performance, AGM batteries would be the best choice. Lithium-ion batteries are lighter than both lead-acid and AGM batteries. They also charge more quickly and have a longer life than the two batteries.

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Look under the hood and in the hatch of many of the top professional drivers and anglers, and you’ll find one or more of these iconic batteries. With the beefiest construction and most reliable performance, this classic blue-top marine battery is our favorite overall. Boaters use a deep cycle marine battery to start and run outboard motors or to power a trolling motor.

50ah Lithium Battery

What many folks don’t know is that 36V controllers are made to work in 36V environments and give you way more leeway in one battery degrading your whole system. First, you have to understand in parallel or series systems, when one battery goes down, the whole thing is down. If, on the other hand, you want a light and high-performing battery that will last you many years, lithium is the way to go. I recommend you also read reviews and learn about other users’ experiences with customer support. It’s great if you know you can pick up your phone and get any advice you may need. In this case, your motor shouldn’t draw more than 60 Amps, preferably closer to 50 Amps.

As a result, lithium batteries are ideal for boats where weight and space are a concern. Amp hours, or a battery’s amp-hour rating, determines how long the battery will last. The amp-hour rating measures how much amperage a battery can provide per hour. A good rule of thumb is at least 100 amp hours for a trolling motor battery.

This type of battery is completely sealed with a longer life of the battery. Wet cell batteries are a mix of water and sulfuric acid, which means that the cells and lead plates in the battery are either flooded or submerged into electrolyte fluid. Some smart chargers enable you to adjust the charging speed accordingly. If your trolling battery charger is considered a smart charger, you may need to vary your speed. This battery is also very reliable and can be mounted in any position.

Even when stored for long periods of time in adverse weather conditions, the battery turns right over when charged. The AGM design keeps all the components safe and snug inside the case preventing any leaking or corrosion. Thanks to the AGM design of the battery, it is entirely maintenance-free and requires no checking of levels or time-consuming corrosion prevention.