This way they can be either 12V lifepo4 battery electrically or manually lifted in and out of the water for use. Because trolling motors are a separate unit from the outboard engine(s), they need to be powered by their own marine battery. Lithium marine batteries also have a much longer lifespan than a flooded lead acid battery, with some models lasting up to 10 years or more, and they are virtually maintenance-free. In put it shortly, the trolling motor group size defines the physical dimensions of the battery case.
I’ve fished a bunch of days out of a kayak with a Motorguide Xi3 trolling motor with this battery and I love it. It charges fast, holds a charge a long time and provides ample power for all day trolling around in a big 13-foot kayak. It’s built with precision waterproofing, vibration controls and fire suppression technology. One of the worst things for a lithium battery is water on the cells and keeping water out of batteries in an environment prone to be more watery is an important feature. Higher peak discharge means it also has stronger starting power. But for running a graph or a trolling motor all day on a small boat or yak, this battery is hard to beat.
Renogy 12v 100ah Pro Smart Lithium Iron Phosphate Battery W/bluetooth & Self-heating Function
Selecting the correct size ensures optimal performance, extending the life of your battery for consistent power delivery. The dimensions are 7.68 x 5.12 x 6.46 inches, and it weighs only 22 lbs. Not only is this lightweight, compact, but it is also cost-effective, best suited as a small trolling battery. It has a patented sealed post that prevents any corrosion and gives extended battery life. This is a deep cycle battery of 12 volts from Interstate Batteries.
A dual-purpose battery is also more prone to overheating, which is not an ideal option. It is recommended to use a starting battery and deep cycle battery. Still, the dual-purpose batteries work well for short trips and are maintained properly. Other than that, there are some deep-cycle batteries that one can use to start an engine. A deep cycle battery is built to withstand many discharges and recharges, while the dual-purpose battery is not. Dual-purpose batteries cannot withstand well to total discharges and recharges.
However, if you have a 36V system you have a lot more leeway with one cell shutting down the battery. Ultimately, 36V systems in parallel are actually a better choice for anglers than three 12V batteries in a series. Your 12-volt batteries have 12V controllers and are somewhat limited on managing a 36V system. A 36V controller is way better equipped to handle your 36V power environment in each battery and as a system. One of the most notable features is the battery’s Bluetooth 5.0 connectivity.
Thermal runaway protection is critical—look for multi-layer separators and flame-retardant electrolytes. Battle Born Batteries and Dragonfly Energy models exceed ABYC E-11 marine electrical standards. Always install in ventilated, waterproof battery boxes with circuit breakers. The battery is also shock-resistant, meaning it can withstand the bumps and vibrations of trolling without losing power or performance.
With 120 amp-hours to call on, you won’t even need to charge this battery after every trip. This reliable battery is a big unit, but it’s a very reliable option if you’ve got the space. The one drawback of having all this power is the battery is on the bigger side. It weighs a whopping 68 lbs and measures 7” x 9” x 12”, so it’s not going to fit in some smaller boats and will add a good bit of weight to your overall capacity.
Bass Pro Shops Deep Cycle 12v Marine Battery
With so many options on the market, choosing the best trolling motor battery can be daunting. But don’t worry, we’ve put together this guide to help you navigate the world of marine batteries. After 15 hours of research, I’ve confidently sifted through numerous options and come up with this list.
When choosing your lithium battery, make sure its maximum continuous output current is higher than your trolling motor’s maximum Amp draw. A BMS will preserve the lifespan of a lithium battery and ensure its safety. It will protect your battery from a voltage that is too high or too low. It will stop discharging your battery if the temperature is too high or prevent charging in freezing temperatures. Your motor’s current draw depends on the speed you set it to and how heavy your boat is.
For example, in kayak fishing, it’s vital to have balance and stability in the boat. With the Dakota weighing a mere 17.6 pounds, with dimensions 9.01×5.43×8.38 inches, this easily fits your kayak. And even with its smaller size, the Dakota still has 54 Amp Hours (run time), allowing for almost the same runtime as the Optima OPT 8016. This battery weighs 68 pounds with dimensions 12.1×6.7×8.2 inches.
Below, we’ll get into the specifics of each, making your decision easier. As mentioned earlier, I brought this motor out to sea for 8 hours straight. Then, once I got home and put the battery on charge, it was still well above 90% power.
You must have heard or read about stories of lithium-ion batteries catching fire or exploding, for example, a smartphone, tablet, or electric scooter. My preferred alternative is to connect two 12-volt batteries in series. Two lighter batteries are also easier to carry than a single large one.
Each group size number—24, 27, or 31—correlates to specific dimensions. This is important to know as many boats have a battery compartment designed to hold a certain size battery, so you want to choose one that will fit the specifications of your vessel. The famous blue-top battery uses proprietary Spiralcell and Pureflow construction to improve its performance. Spiralcell uses stronger links between the battery’s cells to increase vibration resistance.
Unlike other types of lithium batteries, LiFePO4 batteries will not catch fire or explode. The biggest downside of smaller lithium batteries is that their maximum current output may be too low in some cases. These small lithium batteries are great for kayaks, canoes, and inflatables. One important thing to know is that you shouldn’t charge lithium batteries in freezing temperatures. That is why it’s recommended to oversize your battery wires when you use lead-acid batteries. A lead-acid battery should only be discharged to roughly half of its rated capacity (Ah), which means you need to get a battery double the capacity you actually want to use.
A lightweight battery is usually recommended for a trolling motor, and an ideal weight should not be over 45lbs. Before choosing the perfect battery for your trolling motor, make sure that it is not too heavy. If the weight is heavy, it necessarily doesn’t have to be a good product.
These came in late in our testing, so they have not been in our boats as long as some others. I’m currently running the 36V 40Ah battery in parallel with another one and getting 80Ah on my 36V system. You get a 38.4V system 1536Wh per battery with a capacity of 40Ah and you can run the system in parallel to double your amp hours.
It’s best to unplug when fully charged or use a smart charger with overcharge protection. When it comes to powering your trolling motor, settling for anything less than the best is simply not an option. At Tournament Lithium, we understand the crucial role a reliable trolling motor battery plays in your fishing adventures. Our cutting-edge batteries are designed to not just meet, but exceed your expectations, ensuring that your time on the water is always powered to perfection. When it’s all said and done, the boating fisherman really wants two things out of his trolling motor and battery(ies). He wants; 1) To have enough power or pounds of thrust to maneuver his boat in any circumstance, and 2) To have enough battery life to easily cover his sessions on the water.
Marine batteries may also be considered to power a trolling motor. Often times they are less expensive than the leading trolling battery brands or any trolling motor battery for that matter. Trolling motor batteries are specifically designed for prolonged, harsh activity.