Commercial energy storage batteries are rechargeable batteries designed to store energy obtained from renewable energy sources such as solar and wind. These batteries are typically used to provide power during times of peak demand, when renewable energy sources are not available. They can also be used to store excess energy during times of low demand, and then used to provide power during times of peak demand. These batteries are typically larger than residential energy storage batteries, and can come in a variety of chemistries and sizes, depending on the application.