![]() ![]() However, for the added cost, you enjoy the benefits of significant weight reduction, increased efficiency, added safety, and a much longer lifespan. We’ve said it a few times: lithium-ion batteries are quite a bit more expensive than their lead-acid counterparts. Is Upgrading Your Marine Battery to Lithium Worth It? The upfront cost is significantly more than the lead-acid counterparts available, but the overall long-term cost is lower. Lithium marine batteries usually cost around $1,000 for a 100 Ah capacity battery. How Expensive Are Lithium Marine Batteries? The BMS will detect unsafe conditions and shut down the battery to prevent damage or thermal runaway. Lithium batteries are sealed, which means that moisture and even a bit of water splashing on them will not cause harm.Īdditionally, most lithium batteries have an internal battery management system (BMS). Yes, lithium batteries are safe for marine and boat applications. Conversely, most lead-acid manufacturers offer warranties between one and five years. In fact, here at Dragonfly Energy, we offer 5-year warranties on our lithium batteries. This usually translates to lithium batteries lasting ten years or longer. Lithium marine batteries will typically last 3,000-5,000 charge cycles. ![]() How Long Do Lithium-Ion Marine Batteries Last? If you are not confident in your ability to make the switch to lithium marine batteries on your own, please get in touch with a professional. Most of these changes are relatively straightforward however, errors in electrical systems can be dangerous. Additionally, lithium batteries don’t have any warning signs they’re about to die, so you may also need to add a battery monitor as well. You may need additional components to complete your installation.ĭepending on your use and application, you may need to upgrade your inverter and battery charger to maximize performance. Many lithium batteries are drop-in replacements, meaning that they’re designed to fit like a typical lead-acid battery in your battery bank. Is It Easy to Make the Switch to a Lithium Marine Battery? Plus, remember that you may only need half as many lithium batteries as you had lead-acid batteries. Their longer lifespan combined with their increased efficiency makes lithium-ion marine batteries cheaper in the long term. However, lithium batteries often last at least five times as long as their lead-acid counterparts. The upfront cost of purchasing a lithium marine battery is significantly higher than buying a lead-acid battery. Half the number of batteries, when each battery weighs half of what a lead-acid battery weighs, results in almost a four-times reduction in weight! Cheaper Long-Term Since you usually get almost double the capacity, you may only need half the batteries. The increased power storage is one of the best benefits of lithium batteries. The batteries we manufacture can be 100% discharged without causing damage. Conversely, most lithium battery manufacturers rate their batteries to allow 80% depth of discharge. Increased Power Storageĭraining a lead-acid battery below 50% of its capacity causes damage and shortens the battery’s life. Lithium-ion batteries require almost no maintenance at all to optimize their performance and lifespan. ![]() Alternatively, the lifecycle of a lithium marine battery is usually between 3,000-5,000 cycles.Īdditionally, the lifespan of a lead-acid battery is dependent on how well you maintain the battery. Increased Number of Charge-Discharge Cyclesĭeep-cycle lead-acid marine batteries generally last between 500-1,000 charge-discharge cycles. An average 100 Ah lead-acid battery weighs between 60 and 80 pounds, depending on the type of battery. On average, lithium batteries are about half the weight of lead-acid batteries with the same capacity.įor example, a Dragonfly 100 Ah lithium battery weighs about 31 pounds. Size & Weight ReductionĪll boats have a weight limit, and it’s no secret that reducing the weight you carry on your boat is important. Combining all of these features makes lithium batteries an excellent choice for boating applications. Lithium-ion marine batteries are more efficient, weigh less, and can last up to 10 times longer than lead-acid batteries. Why Boaters Are Choosing Lithium Marine Batteries More and more boaters are making the switch to lithium marine batteries and for many good reasons! Let’s take a look at the benefits of lithium marine batteries and answer some frequently asked questions. ![]()
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