How Long Do Solar Batteries Last?

How Long Do Solar Batteries Last? An increasing number of individuals and businesses are relying on solar energy. To harness solar energy, you will need solar batteries. These are batteries that store solar power until you use them.

While solar appliances, in general, can last for a long time, the main question is, how long do solar batteries last? Our post below answers this very question. Once you go through it, it will become very easy to decide on solar batteries.

How Long Do Solar Batteries Last?

Solar batteries can last anywhere from 5 years to 15 years. We understand that this range is pretty huge. However, that is because there are a few factors that determine the life of solar batteries. We will cover these factors below.

What factors determine the life of solar batteries?

In total, three factors affect the life of solar batteries. If they are conducive, the solar batteries can last for up to 15 years. If not, you might have to replace them in just 5 years.

1. Frequency of use:

The lifespan of the solar battery is dependent on the charge and discharge cycles. If you use the battery daily, it is likely to last for 7 to 8 years. f you have a solar battery that you use occasionally, it can last for upwards of 10 years.

The more the charge and discharge cycles, the lesser the efficiency of the battery over time. While there are a few batteries suitable for daily use, they will not last for 15 years. Thus, the lifespan of the battery certainly depends on the frequency of use.

2. Type of battery:

Did you know that solar batteries can be of 3 different types?

The technology of the battery also determines its lifespan. That is why it is essential to consider the type of solar battery before taking a call. We will highlight all three types below to give you an idea regarding how long they can last.

• Lead-acid battery:

A lead-acid battery is affordable of them all. However, it can last for a few charge and discharge cycles. That is why it can last only for 5 to 7 years. Also, the amount of charge you can use from a lead-acid battery is lower. Often, 50% lower than the battery capacity.

That is why they are not that efficient.

• Lithium-ion battery:

Lithium-ion batteries can handle any temperature. Oftentimes, you can use them below 0°F as well. That is why they are much more efficient than lead-acid batteries.

Under normal operating temperature range, they can last longer than lead-acid batteries. However, if you’re using them below 0F or around 80°F, the life span is 7 to 10 years.

Thus, if you have normal weather all year-round, a lithium-ion battery can last anywhere from 10 years to 15 years.

• Saltwater batteries:

If the temperature in your area varies between 23°F to 104°F saltwater batteries have an edge. However, these are only better than lead-acid batteries.

When you compare them with lithium and acid batteries, their life span is on the lower side. In a nutshell, saltwater batteries can easily last for 7 to 10 years within the temperature range.

As you can see, the lifespan of the solar battery also depends on the type of battery it is. If you simply want to go with the most long-lasting battery, you should choose a lithium-ion battery over others.

3. Weather conditions:

The environment or weather around the battery also plays a vital role in determining its lifespan.

Ideally, you should store the battery in an area having less traffic. If it has a temperature control mechanism, that is an added advantage. Such places include garages as well as basements.

At a higher temperature, the chemicals inside the batteries often undergo reactions more safely. In that case, the wear and tear increases. In extreme cold, the lifespan of these chemicals once again decreases. That is why the drain current will increase. The capacity of the battery will go on reducing.

Keeping this factor in mind, it is better to keep batteries in places where the temperature is between 40°F to 80°F. In that case, they can certainly provide you with a maximum number of charge and discharge cycles.

Conclusion

As you can see, the lifespan of solar batteries depends on quite a few parameters. In general, you can assume that the battery can last anywhere from 5 years to 15 years.