You may be wondering how long your battery backup or generator will last. Here’s a breakdown of the expected lifespan and warranty for each type of backup power source.
Regarding battery backups, they usually come with longer warranties than standby generators. Nevertheless, please be advised that these warranties have varied TERMS. For example, over time, battery backup systems lose the ability to hold a charge – like phones and laptops.
As a result, battery backups include an end-of-warranty capacity rating. This measures how effectively a battery will hold a charge by its warranty period.
For instance, Tesla guarantees that its Powerwall battery should retain 70% of its capacity by its 10-year warranty. Not only this, but some battery backup manufacturers also offer a “throughput” warranty. This company guarantee is for the number of cycles, hours or energy output (referred to as “throughput”) that their product will withstand.
In contrast, it will be easier to estimate the lifespan of a standby generator. With proper maintenance, standby generators can run for 3,000 hours. So, running your generator for 150 hours per year should last about 20 years.
In short, battery backups and generators have different expected lifespans and warranties – so it’s important to research to find the best backup power source for you and your needs.