Find the right solar-plus-storage system on Solar Power And Light .
A solar battery is a device that stores electricity for later use,
so you can keep appliances running during a power outage,
use more of the solar energy you produce at your home,
and even save money on electricity in some cases.
They are often referred to as "deep cycle batteries", due to their ability to charge and discharge a significant amount of electricity compared to something like a car battery.
The newer battery technologies out-perfom the traditional deep cycle ones.