Solar Battery Lifespan: How Long Does Solar Battery Last?

What Are Solar Batteries? 

A solar battery is a tool that can be added to your solar power system to store any excess energy generated by your solar PVs. You may then use the stored energy to power your home when your solar panels aren't producing enough electricity, such as nights, cloudy days, and power outages.

Without a place to transport the electricity generated by your solar panels, solar would be inefficient—your appliances would only operate when the sun was shining and your panels were working. If you do not use the energy, it is wasted—and you will be unable to use it at night.

Enter solar batteries, which store the energy generated by your panels and make them available when needed. Solar batteries are an alternative to giving energy back to the grid, and they can help you make your home or facility more resistant to power outages or even wholly off-grid.

How Long Does Solar Battery Last?

Most solar batteries today will last anywhere from 5 to 15 years. While that is an extended period, you will likely need to replace them before your solar system reaches its 25 to 30-year lifespan.

Solar batteries typically last 5 to 25 years. Lithium-ion is the most common type of solar battery, lasting up to 15 years. Battery type, usage frequency, installation, cycle life, environmental conditions, and maintenance are all aspects that influence the durability of a solar battery.

What Factors Affect Solar Battery Lifespan?

Solar batteries have become more affordable and popular in recent years. Even builders and construction businesses are focusing more on environmentally friendly projects. Homeowners are slowly converting their homes to solar batteries. Let's look at the aspects that influence how long solar batteries last.

#1: How Often You Use

Over time, you may have observed that the battery life of your laptop or smartphone decreases significantly. When ultimately charged, the battery's initial lifespan was 12 hours. It now endures for three.

This is an inevitable frustration when dealing with batteries. Regularly charging and discharging your battery will reduce its overall lifespan. After a specific number of cycles, your batteries can no longer be able to store and release enough energy to be considered valid.

That is the reason for the wide variation in battery lifespan. The determination is based on the frequency of use by each solar owner, not the number of years they have been in place. If you have an off-grid system that relies on battery power every night, your batteries will last less than a grid-tied system that only utilises batteries when the power goes out.

One technique to make your batteries survive longer is to adhere to the manufacturer's suggested depth of discharge or DoD. The amount of energy you consume from a battery is called its depth of discharge. For example, your battery has a capacity of 12kWh, and you use 10kWh of its charge. The depth of discharge would be 83%. DoD is critical since exceeding the recommended DoD will dramatically reduce your battery's lifespan. Manufacturers will set a suggested maximum DoD for each battery type.

#2: Types of Solar Batteries

Three types of batteries are typically employed in solar storage: lead-acid, lithium-ion, LiFePO4, and flow batteries. Of the four alternatives, lithium-ion batteries will last the longest. They also have the most storage capacity but are unlikely to be the cheapest option.

Lithium-Ion Battery

Several lithium chemicals are on the market, including lithium polymer, lithium iron phosphate, and nickel-manganese-cobalt. The latest lithium technology presents a lower fire risk than previous headlines suggest. They can discharge deeper than lead acid batteries, consume up to 90% of a charge per cycle without inflicting substantial harm, and are considerably easier to maintain and last longer. 

Furthermore, they are far more expensive and temperature-sensitive. However, they are becoming more common in home battery backup systems. The Jackery Portable Power Stations use lithium-ion cell technology to store more solar energy and significantly increase their lifespans.  

LiFePO4 Battery

Phosphate is the cathode material of lithium iron phosphate (LFP) batteries, whereas a graphitic carbon electrode acts as the anode. LFP batteries have a long life cycle and provide outstanding thermal and electrochemical performance. The nominal voltage of LFP battery cells is 3.2 volts, so connecting four of them in series produces a 12.8-volt battery. As a result, LFP batteries are the most common lithium battery used to replace lead-acid deep-cycle batteries—such as the Jackery Explorer 2000 Plus or 300 Plus, which use a LiFePO4 battery to store more energy.

Compared to outdated lead-acid (LA) batteries and alternative lithium-ion battery types, LiFePO4 has many advantages. They feature greater charge and discharge properties, a substantially longer lifespan, are less in weight, and require minimal maintenance.

Lead-Acid Battery

This battery technology has remained substantially unchanged for more than a century. It remains affordable and widely accessible. More expensive sealed batteries are well-known for their use in solar systems, as they require less maintenance and eliminate the risk of acid spills and hydrogen off-gassing. Initially, hermetic lead acid batteries appeared to be the future of solar batteries.

However, all lead acid batteries necessitate more careful charge monitoring than lithium-ion batteries and cannot compete in efficiency, energy, and lifespan. Nonetheless, they offer an inexpensive and plentiful alternative. 

Flow Battery

Flow or redox flow batteries, designed for commercial use, are less frequent in residential systems. However, the technique is promising and may be used in-home battery backup systems more regularly. One of the most promising alternatives stores and releases charge using a pumped electrolyte, such as vanadium ions or zinc bromide, as well as chemical processes. Red flow batteries are currently the most common flow batteries in Australia.  

#3: Battery Stored Environment

Batteries do not do well in excessive heat or cold. Storing batteries in a garage, basement, or a temperature-controlled room will prolong the lifespan of the storage system compared to exposing them to the environment.

Warmer temperatures accelerate the chemical reaction in batteries, reducing their lifespan by increasing wear and tear. Extreme cold temperatures cause a decrease in electron movement and reduce the longevity of chemicals, leading to a rapid depletion of the battery.

In general, lead-acid batteries are more temperature-sensitive than lithium-ion. Many manufacturers recommend maintaining lead-acid batteries between 40°F and 80°F. Lithium-ion batteries can withstand temperatures slightly below 0°F and are often fine at temperatures as high as 140°F. However, keeping them in a more temperate environment is still recommended.

Saltwater batteries work best at temperatures over about 23°F but below 104°F, giving them a minor advantage over lead-acid batteries. However, they are not as durable as lithium-ion batteries.

#4: Maintenance

Solar batteries require little care, although monitoring them can help them live as long as possible. Checking your battery's performance helps prevent damage and ensures that it works properly throughout its life.

Batteries are less sensitive than solar panels, which need minimal upkeep. With lithium-ion batteries, all you have to do is check the charge now and again. Remove dust and grime from all types of batteries and keep all exposed connections clean. The Jackery Portable Power Station boasts a unibody drop-proof design that is flame retardant and anti-UV, making it impact-resistant and easy to maintain. 

#5: Temperature

Like any other electrical equipment, a solar battery's longevity is affected by temperature. Extreme heat and cold can cause significant harm or at least reduce efficiency and longevity. Excessive heat speeds up the chemical reactions inside the battery. Heat accelerates wear and tear, making the solar battery cycle shorter and less durable. On the other hand, extreme cold slows down the chemical processes within the battery, causing it to drain more quickly. However, some sophisticated batteries, such as the Jackery Portable Power Station, have a clever temperature control system that monitors temperatures up to 100 times per second to prevent overheating. It also includes several power-saving features to help you in this regard. 

How Does A Solar Battery Work?

When you install a solar panel system in your home, each panel of solar cells converts sunlight into direct current (DC) electricity. The direct current (DC) electricity will pass through an inverter to produce alternating current (AC) electricity used to power household appliances.

Excess energy is routed to the grid in residences without solar batteries and redistributed around the country. That means you can only use solar power as it becomes available. For homes with lithium batteries installed, extra electricity can be stored and used later, reducing your reliance on the grid and the weather.

How Does Lithium-Ion Solar Battery Work?

Lithium ions (Li+) migrate internally between the anode and cathode of a lithium-ion battery. In an external circuit, electrons move in the opposite direction. This migration produces the electric current that powers the device. Thus, the battery supplies power.

The discharge of lithium ions from the anode to the cathode generates an electron current, which aids in the operation of the device. The passage of lithium ions from the cathode to the anode during battery charging produces the opposite effect. 

How Does LiFePO4 Solar Battery Work?

Lithium Iron Phosphate (LiFePO4) batteries, like other types of batteries, use electrochemical cells to power electrical devices. The LiFePO4 battery comprises positive and negative current collectors, an anode and cathode, a separator, and an electrolyte. The positive terminal of a battery is referred to as the cathode, whilst the negative terminal is defined as the anode. The anode terminal is where lithium ions begin.  

Lithium ions with a positive charge move from the anode to the cathode through the separator and electrolyte. The displacement of lithium ions causes electrons to be freed at the anode. As a result, these electrons travel through an external circuit before arriving at the cathode, also known as the positive terminal. When an electrical load is connected to a battery, current travels in the direction from the positive terminal to the negative terminal.

Jackery Portable Power Stations use lithium-ion and LiFePO4 batteries with the same operating principles. Please keep reading to learn more about us and why you need a Jackery Portable Power Station for your home or outdoor adventures.

Jackery Portable Power Stations Explained

Jackery is a famous manufacturer of high-quality solar products, such as the Jackery Portable Power Station. It is meant to inspire exploration. Compared to other portable power station alternatives, it is up to 30% lighter and smaller. Jackery provides portable power solutions ranging from 300Wh to 12kWh, which can power up to 99% of equipment, including televisions, refrigerators, CPAP machines, lights, and more. 

Jackery Portable Power Stations offer multiple power output options, such as AC outlets, DC connectors, and USB ports, to charge electronics and power home appliances. The Jackery Explorer 2000 Plus, 1000 Pro, and 300 Plus portable power stations are incredibly lightweight and portable, making them perfect for emergencies. By connecting Jackery Solar Panels to Jackery Portable Power Stations, the Jackery Solar Generator maximises solar energy use. They use modern BMS and pure sine wave inverters to ensure smooth and stable power delivery.

Jackery Explorer 2000 Plus

The Jackery Explorer 2000 Plus portable power station is a mobile powerhouse that significantly improves off-grid life and outdoor power requirements. With its large capacity and power output, this generator can power a typical household for weeks or fulfil the demands of adventurous travels and professional activities. It has a powerful 2 kWh base capacity that can be increased to an incredible 12 kWh with additional battery packs, making it an excellent companion for road trips, outdoor adventures, heavy-duty activities, and unforeseen situations.

Not content with simple capacity, the Jackery Explorer 2000 Plus portable power station stands out with an extended power capability of up to 3000 W, a 30% increase over comparable goods. This upgraded power supply ensures that virtually all critical equipment operates smoothly, meeting a wide range of requirements with fantastic efficiency.

Furthermore, with a short six-hour solar charge time using 6*SolarSaga 100W solar panels, it transforms into an independent power source, relying on solar energy to power its operations and relieving users from traditional power grids. In an age where portable power solutions are becoming increasingly important, the Jackery Explorer 2000 Plus is an example of innovation and durability.       

Jackery Explorer 1000 Pro

The Jackery Explorer 1000 Pro Portable Power Station is compatible and can power many devices simultaneously. The 1000W portable power station, with a battery capacity 1002Wh, charges your electrical devices while camping and power outages. The product features an industry-leading BMS, 94V-0 fire-grade material, pure sine wave technology, and a folding handle, and weighs only 11.5kg.

The Explorer 1000 Pro portable power station features two 1000W AC output outlets, two USB A connectors, and a DC vehicle port. It can power up to 93% of your household appliances, including an electric radio, refrigerator, phone, computer, and other devices. It can power a 200W PC in an emergency for 4 hours, suitable for work or other purposes. It can also power a 100-watt CPAP machine for eight hours.

The folding handle facilitates transportation and storage. This portable power source is ideal for camping trips because of its lightweight design and 1,000-charge cycle life. The pure sine wave inverter inside the Explorer provides steady power to your electronic devices. In this ultra-quiet (46dB) product, a battery management system (BMS) monitors and extends battery life.

Jackery Explorer 300 Plus

The Jackery Explorer 300 Plus portable power station is a compact powerhouse that revolutionises outdoor charging ease. This portable power station, with a capacity of 288Wh and a power output of 300W, meets the diverse energy needs of travellers.

The Jackery Explorer 300 Plus, which has twin PD ports and can output up to 100W, enables the rapid charging of many devices at once, making it a versatile and efficient charging solution. Its small size and lightweight design make it ideal for outside charging, providing a reliable power supply.

The Jackery Explorer 300 Plus portable power station supports various charging options, allowing you to charge your devices wherever you are. This portable power station combines performance and portability to charge your electronics during emergencies. The data provided is for reference purposes only and is based on laboratory test results, confirming Jackery's commitment to transparency and dependability.

How Do You Improve The Lifespan of A Solar Battery?

As a user, you can take several steps to increase the life of your solar batteries. Small things can make a significant difference in a variety of situations. Here are some suggestions to help you extend the life of your solar batteries. 

Avoid Exposure to Extreme Weather: The temperature of the location where solar batteries are put makes a difference. Keeping the batteries at an ideal temperature will help to extend their lifespan. It will also help to increase its efficiency.

Under severe temperatures, solar batteries may stop working or malfunction. Solar battery capacity tends to diminish at extreme cold and high temperatures. These variations can both shorten and lengthen the battery's lifespan over time. During the winter, store the batteries at the appropriate room temperature.

Avoid Extreme State of Charge: Deficient and high charge levels might cause battery stress. Try an 80% partial charge rather than a full charge to reduce charging time. If you opt for a complete discharge, remove it as soon as it reaches 100%.

Charge Battery Properly: You get the most out of the battery, so charge it thoroughly. Pay attention to the charging time. Battery desulfation should not be used to extend the battery's life. Another crucial consideration is ventilation, which should always be noticed. Every gadget needs appropriate airflow to avoid overheating. Even when installing solar batteries, make sure the area is well-ventilated.

How Long Do Solar Batteries Last FAQs

The following are the frequently asked questions about how long solar batteries last:

1. What size of a solar battery do I need?

To select the appropriate size solar battery, consider your energy consumption, solar panel efficiency, battery storage capacity, and the specific needs of your equipment. Choosing the right size solar generator requires balancing energy needs, installation efficiency, mobility, and cost. Customers can select a Jackery Portable Power Station for a portable solar system with capacities ranging from 12 kWh to 300Wh. The operating hours of Jackery Portable Power Station-powered appliances are calculated using the following formula:

Working Hours (H) = [Portable Power Station Capacity (Wh)*0.85] / Appliance Wattage (W)

The Jackery Solar Generator 1000 Pro can power a 200W television for four hours (1002Wh x 0.85/100). This calculation aids in estimating the hours during which appliances can operate.

2. What are the symptoms of a degraded solar battery?

The symptoms vary based on the chemistry, design and use. Here are several common indicators of an end-of-life battery in a home solar storage system:

• Reduced Capacity: Reduced capacity is a crucial sign of ageing solar batteries. You may notice that it now carries less energy, resulting in shorter discharge times.
• Frequent Recharging: Regular recharging may be necessary to maintain performance levels as battery capacity decreases. You may find yourself needing to charge it more frequently than before.
• Decreased Performance: The battery's ability to deliver power may decrease. This would be more noticeable when the system is in backup or off-grid.
• Increased Heating: As batteries age, their internal resistance rises, producing more excellent heat during charge and discharge. If it becomes boiling during routine activities, it could indicate degeneration.
• Unexpected Shutdowns: End-of-life batteries may face unexpected shutdowns or disruptions in power delivery, especially during peak demand.

3. Are solar batteries worth it?

Solar batteries need a considerable initial financial commitment, but they can help you save money on electricity prices after sunset or during an emergency. If you live off-grid, they could be essential components of your energy system.

Solar batteries offer your home clean, relatively green, renewable energy that would otherwise have to be obtained from another source. Some localities also provide incentives or rebates to help offset the expenses of adding a solar battery to your system, and you can save up to 30% on your battery installation if you qualify for the federal solar tax credit. Finally, only you can decide whether the benefits of investing in a solar battery outweigh the costs and maintenance requirements.

Final Thoughts

This guide discusses how long solar batteries last. It's not only about selecting an appropriate solar battery for your home; it's also about how you use it. You don't have to worry about all the specifics. Taking the required action at the correct moment boosts the battery's performance. Furthermore, it helps you save money and avoid unnecessary expenses. If you decide to use solar batteries, don't hesitate to get Jackery Explorer 2000 Plus, 1000 Pro, or 300 Plus, which will meet your needs while promoting a sustainable future.