How Long Do Solar Batteries Last

How Long Do Solar Batteries Last- On average, Solar cells last 5-25 years on average. Lithium-ion batteries are the most common type of solar cell and have a lifespan of up to 15 years. Some of the factors that affect the life of a solar cell are battery, installation, depth of discharge, cycle life, environment and maintenance.In this blog, we will discuss how long solar batteries Last.

Solar is an investment, so you want it to last as long as possible. This article looks at what you can do to keep your battery in good working order, and for those still looking to buy, what information you need to know when choosing a solar battery. We understand that a solar panel is an important long-term investment for your home. That's why we answer frequently asked questions about solar battery life to help you understand the benefits of switching to renewable energy.

How Long Do Solar Batteries Last

What factors affect the life of a solar cell?

As mentioned, the life of a solar cell is affected by the type of solar cell, lifetime, depth of discharge, storage environment and maintenance. Home solar panels last 5-25 years. When deciding to install a solar panel, consider the following factors:

Solar Battery Type

There are many different types of solar panel on the market. Some of these are lead-acid and flow-through batteries, but lithium-ion batteries are the most common batteries today. You can read more about the differences between these batteries in this blog.

Types Of Batteries:

Lead-acid Lead-acid are the oldest solar cells and have one of the shortest lifespans on the market. The service life of lead batteries is 1500-3000 cycles, which corresponds to about three to five years.
Lithium-ion Lithium-ion batteries dominated the market. Lifespans vary, but high-quality solar lithium-ion batteries significantly outlast the life of lead-acid batteries. TDG solar systems currently have a versatile and durable lithium-ion battery.
Flow Flow batteries are a relatively new entrant to the solar cell market. They pump liquid electrolytes through electrochemical cells to store and release energy. Their depth of discharge is 100%, which exceeds the level of depth of discharge of lead-acid batteries and lithium-ion batteries.


Installation location affects its service life. A solar cell stored outdoors and on the cell deteriorates faster than a battery stored in a controlled environment. This does not mean that the battery must necessarily be stored indoors - although garages are typical storage areas - a sheltered outdoor space would also be good. The operating temperature of solar cells is usually quite wide.

Depth of Discharge

Each solar cell has a depth of discharge (DOD) - the percentage of the capacity of the battery that can be discharged without damaging the health of the battery. For example, we will use the most common type of battery in the home, the lithium ion battery.

Lithium-ion batteries have a depth of discharge of 80-95%. The standard DOD for lithium-ion batteries is 90%, which means that if the battery capacity is 13 kWh, you can use 11.3 kWh without draining the battery.

Seawater batteries

Unlike lead-acid and lithium-ion batteries, seawater batteries do not contain heavy metals, but use saltwater electrolytes. This makes saltwater batteries more environmentally friendly and allows them to be easily recycled.

However, as a new technology, saltwater batteries must be tested.7 If you want to maximize your solar potential, lithium-ion batteries provide the most reliable power source.

Using a solar cell

The lifespan of a solar cell is largely determined by its duty cycles. Fortunately, most solar cells are more like deep-cycle batteries, so they can discharge up to 80% of their stored energy before recharging.

Some battery banks must be manually discharged before charging. With Brightbox, your solar panel is automatically charged to prevent overcharging and keep your battery healthy and efficient for as long as possible.

Solar Cell Temperature

Depending on where you live, the location of the battery storage in the home can make a big difference. Your battery must be kept at the optimum temperature to maximize its life and performance.

For example, if you live in moderate/low temperature, the battery can be installed outside. In high temperature areas, the battery will only work optimally if it is installed in your garage or basement.


Now that you know how long a solar cell will last, you can look for a quality battery supplier. Choosing the right battery is quite difficult and we recommend buying only from a reputable and reliable solar company.

TDG Solar offers batteries tailored to our climate and your unique energy needs. Without a complicated purchase process and an impressive price range, going solar has never been easier. Contact us today to see if we can help you lower your electric bill with solar energy solutions.

Contact Details
Address 1/48 Vinnicombe Drive, Canning Vale WA 6155
Phone number 1300TDGSOL (1300 834 765)
FAQs Concerning How Long Solar Batteries Last
1.  How long does it take to make Solar Panels? 

The storage capacity of the battery refers to the electrical energy stored in the batteries. It is often measured in kilowatt-hours or kWh. The average battery capacity is around 10 kWh.

2. How long will a 5kW solar cell last?

If you usually want to run a few lights, a fridge and a TV, a 5kW battery should last about 10 hours.

3. How much does a solar panel replacement cost?

Popular solar cells range in price from $6,000 to $23,000. Solar panels store excess energy for later use during power outages, at night and on cloudy days.

4. Can solar cells be repaired?

Solar cell repair is a special task. It is important to choose professionals who are familiar with solar cell technology. They should have the latest tools and knowledge to diagnose and fix problems to keep your battery systems in top condition.