To get optimum performance out of your solar panels, you need reliable batteries that are safe, versatile, sustainable, and long-lasting. It also makes sense to choose a high-capacity power source with more power potential. Lithium batteries usually come to mind when those features are mentioned. But it’s not enough that you choose just about any lithium battery for solar panel. You have to make sure it’s dependable and won’t cause you problems down the line. With this in mind, you might want to consider LiFePO4 (lithium iron phosphate) batteries.
What’s LiFePO4?
Lithium iron phosphate has similar chemistry to lithium-ion with iron as its cathode material. However, it has some benefits over conventional lithium-ion batteries that make it a better option for renewable energy needs. Here are reasons why LiFePO4 is a good lithium battery for solar panel:
Longer lifespan – The lifecycle of LiFePO4 batteries is two to four times lengthier than regular lithium-ion. That’s because the chemical composition of the battery is more stable, even at higher temperatures. So, it can withstand over-charging and over-discharging. Moreover, it can be stored for extended periods and it won’t degrade easily.
The lengthy lifespan of this battery is ideal for the cost-effective use of solar panels, mainly because frequently replacing batteries can be costly and disruptive. Solar panels typically last 20 to 30 years, so it requires a good lithium battery that can keep up with their lifespan.
Environmental impact – LiFePO4 batteries are considered green because they are built with non-toxic materials like copper, graphite, and iron. The lithium battery for solar panel is recyclable and can be repurposed into new batteries. The longer lifespan also means you won’t have to replace it every few years, which means less waste.
Safety – This is an important factor as solar panels are usually set near occupied residences or buildings. LiFePO4 batteries are lightweight and less toxic, and they are virtually non-combustible. The lithium battery for solar panel comes with a built-in battery management system to protect against over-discharging, reverse polarity, short circuits, and overcharging, too.