Costing less than the others on our list, this 12V trolling motor battery 35Ah deep cycle battery offers everything you could want for a smaller trolling motor and boat without breaking the bank. As a deep-cycle battery for trolling motors, it offers a long-lasting source of power, typically providing several hours’ worth on a single charge. When going at lower speeds you can expect capacity to remain high, with only the longest trips reducing it to below 50%.

 

I ran the Millertech Dual Purpose 12V 135Ah lithium battery for several trips without charging and it was still more than 50% charged. Match battery voltage to your motor’s requirements—using insufficient voltage reduces thrust, while excessive voltage risks equipment damage. Lithium batteries maintain stable voltage output throughout discharge, unlike lead-acid batteries that lose efficiency as they deplete.

 

Solid-state Batteries For Boaters

 

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.

 

These are widely available and effectively require no maintenance. They’re heavy, but you’re getting value in all of those pounds. You also get the proven imprimatur of Bass Pro Shops behind them – that includes a really good warranty if something should go wrong, although you almost certainly won’t. They have lots of power and you can mix and match them for both starting and deep cycle purposes.

 

Absorbent Glass Mat (AGM) trolling motor batteries use woven glass fiber separators. They can handle higher charge and discharge rates than gel counterparts with more cost-effective price. By contrast, the sealed trolling motor batteries do not contain a liquid that will spill out. So they are basically maintenance-free, gaining the favor by a lot of users. They also charge faster and are better for extreme temperatures. If you are willing to spend a lot of money, lithium trolling motor battery is the best choice.

 

At the same time, you are warned that if you run your motor at high speed (over 85%) for a long time, it could damage your motor. Many lithium batteries are rated at 1c, which means the maximum discharge current is equal to its capacity. For example, a 60Ah lithium battery can be discharged at 60 Amps. A lithium battery can keep your trolling motor at the same speed for almost twice as long as lead-acid batteries of the same rated capacity. Today, we discuss the pros and cons of having lithium batteries on board and what you should know before buying one. We also review popular LiFePO4 batteries used with trolling motors today.

 

Is Lithium Battery Good For Trolling Motors?

 

Make sure that the battery is damaged or old, or out of charge. If any of these given conditions occur, you will not get the ideal rated amp-hours, reducing the runtime. Lithium marine deep cycle batteries, in general, is fast, lightweight, and extremely easy to use. The Ionic Lithium Marine Batteries charge faster than a standard lead-acid battery and can be fully charged within 2 hours; it is even longer-lasting.

 

How Long Will A Trolling Motor Run On A Battery?

 

Make sure to connect the positive lead to the positive terminal and the negative lead to the negative terminal. Even “lightweight” batteries are heavy, and the heavier your boat, the more this matters. With a large enough bank of batteries in a heavy fiberglass bass boat, outboard performance can suffer. Less expensive batteries typically offer lower reserve capacity, shorter service life, and greater maintenance issues than more expensive batteries. This lithium-ion battery offers 92 minutes of reserve capacity, more than enough for most anglers, especially if you watch your throttle settings.