The Lifespan of Solar Panel Batteries can vary depending on the quality of the solar panel battery.
Solar Panel batteries last from as little as 5 years to as long as 15 years.
The higher quality batteries will last longer and should last up to 15 years with proper care.
You should expect to replace batteries on your Solar Panel system at least once or twice during the lifespan of the solar panel system which is around 25 to 30 years.
Solar panels can cut your electric bill down but the cost of the solar panels and solar panel system adds up and it's usually just as cheap to just pay the electric bill.