AGM vs Lithium Battery: What Is the Difference?
Lithium-ion and AGM batteries have grown in popularity throughout the years. Each type has its own strengths, and both are considered the most popular types of deep-cycle batteries used in solar and off-grid applications.
Although they are both similar in many ways, they also have their differences. Keep on reading to learn more about them.
AGM Batteries
Simply put, AGM batteries are advanced lead-acid batteries. AGM stands for Absorbent Glass Mat, which is the fine glass fibre separating the positive and negative plates. This mat absorbs all the battery acid and prevents energy loss during use.
The advanced design of AGM batteries allows them to run in deep-cycle applications, making them powerful and efficient batteries for high-demand electrical products. AGM batteries use lead sulphates with a mixture of water and sulfuric acid to carry a charge.
Uses of AGM Batteries
While AGM batteries are highly versatile, they are mainly used for deep-cycle applications. Their applications, however, mainly depend on the type of electrolyte used.
You’ll find AGM batteries in boats, trolling motors, vehicles, and solar power systems. They’re also used as a reliable power source for backup power systems.
Benefits of AGM Battereis
Two of the greatest benefits of AGM batteries are that they do not require a lot of maintenance and are highly durable. Thanks to their glass matt, these batteries are also spill-proof and have a high-power output. In addition, AGM batteries have a short charge time and a long lifespan.
Lithium Batteries
Lithium batteries use lithium ions that move from the negative electrode (anode) to the positive electrode (cathode) through an electrolyte during discharge. When the battery is recharged, these ions move back to the anode.
There are many types of lithium batteries, all of which are used for a variety of different applications.
Uses of Lithium Batteries
Lithium batteries have many applications in the world we live in today. They are widely used in cell phones, computers, gaming devices, and more. In addition, these batteries are used in electric vehicles and power grid systems.
Benefits of Lithium Batteries
Like AGM batteries, lithium batteries require very little maintenance. With advancing technology, they’re also quick to charge while maintaining a long lifespan.
However, one of the main benefits of these batteries is their reduced energy use. Lithium batteries often need very little power to charge and, thanks to their long lifespan, won’t need to be charged as often. Thus, using far less energy than other battery alternatives.
AGM vs Lithium Battery
While both AGM and lithium batteries are similar in terms of certain characteristics, they have a few differences. These differences could influence which battery you choose for your specific use case.
- Size
The first major difference between the two batteries is their sizes. On average, AGM batteries tend to be bigger and heavier than lithium batteries.
- Lifespan
Both these battery types have long lifespans. Lithium batteries, however, tend to last longer than AGM batteries.
- Cost
A significant deciding factor when choosing a battery is cost. Depending on the application, AGM batteries are more affordable than their lithium alternative.
This may seem like an advantage of AGM batteries, but their shorter lifespan impacts this. Since they don’t last as long as lithium batteries, you may end up replacing AGM batteries more often, which may cost more in the long run.
AGM vs Lithium Batteries
Having the correct battery will ensure that your device or vehicle performs efficiently and optimally. AGM batteries have improved significantly in the last few years but are still not as efficient as lithium. Lithium batteries are more expensive but have a low self-discharge rate, making them a great choice for power backup systems. Ultimately, you should consider your unique needs and make the best choice for you.
Polar Battery Ltd, a leading battery store in British Columbia, has an extensive selection of AGM and lithium batteries to suit your needs. Give us a call today or visit our store to learn more about our products.
