How long do battery storage systems last?

Let’s take a look at the average lifespan of battery storage systems and how to maximise their life expectancy. When it comes to the longevity of battery storage systems, you can generally expect them to last between 10 and 12 years. That said, some premium models can keep going for up to 15 years or even longer with the right care and maintenance.

How long do home batteries last?

The expected life for home batteries is usually between 6,000 to 8,000 cycles. Similarly, you might see an expected energy "throughput" listed somewhere on your warranty. This is another way the manufacturer estimates your battery's lifespan.

What affects a battery's lifespan?

The way you use your battery can also affect its lifespan. A battery's depth of discharge refers to the amount of energy you can safely drain relative to its maximum capacity. If you drain your battery all the way to zero before you recharge, that can actually hurt your battery, McDonald said.

How long does a home battery backup last?

Home battery backups typically last between 5 to 15 years, depending on usage and technology. Most lithium-ion models, commonly used in residential systems, can last around 10 to 15 years with regular cycling. Lead-acid batteries, another popular option, generally last 3 to 7 years.

How much power does a home battery backup provide?

Home battery backups can provide a range of power during grid outages, typically from 5 to 20 kilowatt-hours (kWh). The exact amount depends on the battery’s capacity, which is influenced by its size, model, and intended use.

Which battery chemistries are best for home energy storage?

Many options exist with multiple battery chemistries available for home energy storage. Bottom line, however, is that in the United States two brands dominate the space. More than 90% of the market is served by LG Chem and Tesla Powerwall, which are lithium-ion batteries, according to LBL. Tesla has more than 60% of the entire market share.