How to choose the appropriate lithium marine battery?

Marine batteries have three types, If you are new fisherman or boat owner, or interested in upgrading your boat to lithium batteries, you might be curious about the difference. Also, you may be wondering why lithium batteries are better than lead-acid batteries on your boat. Some of the notable advantages of lithium-ion batteries include longer shelf life, constant power, high temperature, faster charging, no maintenance, light weight and safety. Now, let’s take a closer look at the differences between each type of lithium marine battery.

Dual battery

You may be wondering, what is a dual-use battery? Dual-use Marine batteries provide enough power to start and flip the engine, while also providing enough power to keep your trawler motor running. As the name suggests, dual-use batteries can be used for two purposes. Marine batteries come in a range of different BCI sizes. The most commonly used Marine battery sizes include batteries belonging to Group 24, Group 27, Group 31 and 8D.

Deep cycle Batteries

Deep cycle batteries are designed to provide steady energy and sustained power to your trawler motor for a longer period of time. These batteries are used to power loads, which typically include navigation equipment, fishers, running lights, radios, and trawling motors. It depends on what you’re looking for; You can get the best of both worlds with a dual-use motor, but if you’re looking for a battery that lasts longer in a trawler motor, be sure to check out the deep cycle battery.

Start the battery

The ship starter battery is used to start the ignition. For 12V marine lithium battery, the engine must be started and then provide enough power to maintain the motors and equipment connected to the ship. Essentially, the starter battery releases a lot of energy in a short amount of time, making it ideal for starting an outboard engine.

Tow fishing motor battery

Trawl motor battery is specially designed for boat trawl motor battery. The purpose behind them is to provide power for longer periods of time while slowly trawling fishing areas. The number of lithium batteries you need depends on your trawler motor voltage. If you have a 12V trawl motor, you can choose from a number of 12V lithium battery options. If you have a 24V trawl motor, you can use two 12V batteries in series or a single 24V battery. If you have a 36V trawl motor, you can use 3 units of 12V batteries in series. Maxworld offers a wide selection of 12V lithium batteries. Just like a fuel gauge, the number of ampere-hours will determine battery life. Ampere hour can measure the power of the motor battery of a fishing boat. The most common lithium trawl fishing motor battery is lightweight and provides enough ampere-hours to optimize your fishing time. To get the same running time as a wet or AGM lead acid battery, you need to use a lithium battery with a capacity of 60% of that lead acid battery. If you want to spend more time on the water, increase the size from there, or add extra batteries to your boat’s battery pack.

2-12100 lithium battery

How to charge a lithium marine battery?

When Marine lithium batteries are compared with lead-acid batteries, lithium batteries can be charged at a higher current and more efficiently. That means they can charge more quickly. Lithium-ion batteries have other advantages: they do not need to be recharged if they are partially discharged. Unlike lead-acid batteries, lead-acid batteries sulphate when partially charged, which greatly reduces performance and life.

We recommend using multiple chargers so that each 12V battery can be charged separately to ensure they are balanced and fully charged. Ideally, use a charger with a lithium charging profile, but most AGM charging profiles will work fine.

LiFePO4 Marine batteries can also be charged using most alternators. Depending on the quality of the alternator, it should be used with LiFePO4 batteries. A low-quality AC generator with poor voltage regulation will cause the BMS to disconnect the LiFePO4 battery. If the BMS disconnects the battery, the alternator may be damaged. To protect your LiFePO4 battery and alternator, be sure to use a compatible high quality alternator or install a voltage regulator.

Conclusion

In a word, when you’re looking to buy your first battery or upgrade from a lead-acid battery, it’s a good idea to know your needs based on your setup and power requirements. If you are ready to upgrade your boat to lithium marine battery, check out our selection of lithium batteries. If you have any questions, please contact our team and we are willing to help you.

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