Solar Batteries

Like other renewable energy systems, solar energy systems use a lead-acid deep cycle battery . This type of battery is different from a conventional car battery, as it is designed to be more tolerant of the kind of ongoing charging and discharging you would expect when you have variable sunshine from one day to the next. Lead-acid deep cycle batteries last longer but they also cost more than a conventional battery. The major difference between lead acid batteries and other batteries is that they have solid lead plates; in conventional car batteries, the plate is made of a sponge-like material. You may not be able to tell this difference simply by looking at the battery, and some batteries are labeled "deep cycle" when they are not. If you are looking at a battery that is rated for cranking amps , this will likely mean that it is not a deep cycle battery.