How long does a home Battery system last?

Is it necessary to install a home energy storage system?

With the increasing popularity of residential solar energy, the deployment of supporting residential energy storage systems has become a major choice for home users. A recent survey of more than 1,500 households by solar power developer SunPower found that about 40% of Americans worry about frequent power outages. Among respondents who are actively considering installing residential solar power generation facilities, 70% said they plan to deploy battery energy storage systems.

Looking back at Africa, South Africa has been experiencing large-scale power outages across the country since 2007. This situation has intensified after entering 2022, reaching the point where people can no longer live normally. According to statistics, 60 million people in South Africa endure up to 8 hours of power outage every day in zoned blackouts, which sometimes increases to 12 hours. More and more residents are choosing to deploy more reliable and cleaner residential battery storage systems.

What are the benefits of energy storage?

In addition to providing backup power in the event of a power outage, battery energy storage systems are integrated with technology that allows intelligent dispatching of energy imports and exports, with the primary goal of maximizing the value of residential solar systems.

Moreover, some battery storage systems are optimized to charge electric vehicles.

The survey report from SunPower pointed out that in order to provide self-sufficient solar power generation, there has been a sharp increase in consumers showing interest in deploying energy storage systems. Nearly 40% of consumers said that the main reason for deploying battery energy storage systems is self-sufficient power, while this proportion will be less than 20% in 2022. Providing backup power and saving on electricity bills were also cited as main reasons for deploying energy storage systems.

How long do storage batteries last?

Warranty periods provide insight into home battery backup system installers and manufacturers’ expectations regarding battery operating life. Common warranty periods are usually around 10 years.

Solar power developer Sunrun says the batteries can last between five and 15 years. This means that the battery energy storage system may need to be replaced once during the 20 to 30-year operating life of the solar power generation facility.

The two main types of solar batteries commonly used in residential settings are lithium-ion and lead-acid batteries. In terms of lifespan, lithium-ion batteries typically last between 10 to 15 years, while lead-acid batteries have a shorter lifespan of 4 to 8 years.

Consequently, if you opt for lead-acid batteries, you should anticipate replacing them more frequently compared to lithium-ion batteries. Given their longer lifespan, lithium-ion batteries are the preferred choice for most homeowners. On the other hand, lead-acid batteries are more commonly used in off-grid solar installations.

Battery life is mainly determined by charge and discharge cycles. As LG and Tesla prove in their product warranties, a 60% or 70% capacity threshold can be guaranteed after a certain number of charges and discharges.

The Faraday Institute says there are two conditions that can cause battery performance to degrade: overcharging and trickle charging. Overcharging may cause it to overheat and possibly catch fire. Trickle charging is the process in which a battery is continuously charged to 100%, but losses inevitably occur. In this process, the internal temperature of the battery will be increased and the capacity and life will be reduced.

Battery maintenance matters

1. Placing batteries in a cool, dry place.
2. Repeated deep discharges should be avoided.
3. Connecting batteries in series can preserve charge.
4. Operation and maintenance personnel should perform frequent inspections.

Namkoo recommends placing the battery in a cool, dry place, preferably in a garage, where the effects of a fire can be minimized. Batteries and their surrounding components should be properly spaced to allow for cooling, and regular maintenance checks can help ensure optimal operation.

Try to avoid repeated deep discharges during battery operation, because the more times the battery is discharged, the shorter its working life will be. If your residential battery storage system is deeply discharged every day, it may be time to increase the size of your battery pack.

Connecting batteries in series maintains charge. Although the voltage displayed may be 24V, the voltage between multiple batteries may vary, which is obviously not conducive to long-term protection of the battery energy storage system. The charger and charge controller should also be set to the correct voltage set point, which is determined by the battery manufacturer.

Operation and maintenance personnel should perform frequent inspections, such as looking for leaks (accumulation on the outside of the battery), checking for proper fluid levels and whether the voltage is consistent, etc. Each battery manufacturer may have their own experiences and practices, but checking the battery's maintenance and data sheets is best practice.

Namkoo takes pride in its global reach and the ability to cater to diverse customer needs in the realm of home energy storage systems. With a wealth of experience spanning over 100 countries, Namkoo's expert engineers are well-equipped to tailor home power storage solutions that precisely align with each customer's unique requirements. We are dedicated to delivering not only the most suitable energy storage systems but also unwavering product quality and comprehensive pre-sales and after-sales support. Your satisfaction and energy security are our top priorities, making Namkoo your trusted partner in the pursuit of sustainable and efficient home energy solutions.

Guangdong Namkoo Power Co.,Ltd

WhatsApp: +86 188 2630 9307??? Email: [email protected]

Address: No.133 Jingying International Business Center, Foshan,Guangdong, China

Namkoo community