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.

What is a battery design life?

Battery manufacturers design a battery to do certain things within a given set of parameters. This design life is generally predicated on certain conditions that may be generic to the specific application.

Does a battery storage system have a warranty?

Most battery storage system makers offer a standard 10-year warranty that covers defects and malfunctions, provided that the battery has been used as intended. However, some companies are so confident in the quality of their battery that they offer longer warranties.

How many cycles a day should a battery storage system run?

A quality battery storage system should be able to manage 6,000 to 10,000 cycles before you start to see a dip in its capacity. At one cycle a day, that’s roughly 15 years plus. It’s worth noting that the frequency of cycles you get through varies depending on the energy consumption patterns of your home.

What factors affect battery life?

Another “stress factor” that can severely affect service life is undercharging or overcharging the battery. Undercharging the cells will lead to plate sulfation with a resultant buildup in internal resistance within the cell while reducing capacity and eventually shortened battery life.

How does temperature affect battery life?

It is commonly accepted that for every 10°C rise in temperature continually applied to a battery, the result is a reduction in battery life by approximately 50% (See Figure 1 below). Another “stress factor” that can severely affect service life is undercharging or overcharging the battery.