Ten Common Misconceptions About Lithium Batteries for Work Trucks

Lithium iron phosphate (LiFePO4) batteries have made a lot of adoption in the automotive industry as more and more installers are using them as the preferred power source for their customers. However, LiFePO4’s older cousin, lithium-ion (Li-ion) batteries, common mostly in consumer electronics, has given LiFePO4 a number of misconceptions it needs to clear up.

In this article, we will cover top 10 misconceptions people make about LiFePO4 batteries in work trucks:

Misconception 1: LiFePO4 batteries are less energy-dense than other lithium chemistries.

Explanation: While it is true that LiFePO4 batteries have a slightly lower energy density compared to other lithium chemistries like lithium-ion, the difference is not significant and the benefits are significant (see misconception #3). LiFePO4 batteries still offer a high energy density, making them suitable for many applications, including commercial work truck auxiliary power.

Misconception 2: LiFePO4 batteries have a short lifespan.

Explanation: On the contrary, LiFePO4 batteries have a longer cycle life compared to other lithium chemistries. They can withstand a greater number of charge and discharge cycles before experiencing significant capacity loss. This extended lifespan translates to cost savings and enhanced reliability for work truck fleets.

Misconception 3: LiFePO4 batteries are prone to thermal runaway.

Explanation: LiFePO4 batteries have significantly improved thermal stability compared to other lithium chemistries like Li-ion. Designed for safe use, the phosphate-based cathode material is more chemically stable and less reactive, reducing the risk of thermal runaway, fires, or explosions. The design of LiFePO4 Xantrex Lithium is designed to reduce risk of thermal propagation which keeps thermal runaway to just one cell, significantly increasing the safety of its users.

Misconception 4: LiFePO4 batteries are heavy and bulky.

Explanation: While LiFePO4 batteries are generally heavier than lead-acid batteries, they offer a higher energy density, allowing for more power in a smaller package. Compared to other lithium chemistries, LiFePO4 batteries strike a balance between energy density and weight, making them a suitable choice for commercial work truck applications.

Misconception 5: LiFePO4 batteries require extensive maintenance.

Explanation: LiFePO4 batteries are virtually maintenance-free. Unlike lead-acid batteries that require regular watering and specific charging protocols, LiFePO4 batteries do not need maintenance tasks like electrolyte checks or equalization charging. They offer convenience and peace of mind to fleets.

Misconception 6: LiFePO4 batteries are not environmentally friendly.

Explanation: LiFePO4 batteries are considered more environmentally friendly than other lithium chemistries as they contain no toxic heavy metals like cadmium or cobalt, reducing their environmental impact. Additionally, their long lifespan and recyclability contribute to less waste.

Misconception 7: LiFePO4 batteries have limited temperature range.

Explanation: LiFePO4 batteries have a wider operating temperature range compared to other lithium chemistries. They can perform well in both high and low temperatures, making them suitable for various climates and work truck applications.

Misconception 8: LiFePO4 batteries have slow charging times.

Explanation: LiFePO4 batteries can be charged quickly, especially when using compatible charging systems. With advancements such as compatibility with solar panels, fleets can minimize downtime and maximize productivity.

Misconception 9: LiFePO4 batteries are prohibitively expensive.

Explanation: While LiFePO4 batteries may have a higher upfront cost compared to traditional lead-acid batteries, their long lifespan and reduced maintenance requirements offset the initial investment. Over time, the cost savings from fewer battery replacements and decreased downtime make LiFePO4 batteries a cost-effective choice.

Misconception 10: LiFePO4 batteries are not readily available.

Explanation: LiFePO4 batteries have gained popularity in recent years, and their availability has increased accordingly. Many installers and upfitters are carrying lithium as an option for fleets looking to upgrade their auxiliary power systems.


By debunking these misconceptions, fleet managers can gain a better understanding of the true capabilities and advantages of LiFePO4 batteries. LiFePO4 batteries offer a safe, reliable, and efficient energy storage for work truck fleets when installed as part of an auxiliary power system, aligning with the industry’s goals of sustainability and operational excellence.

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