The average lifespan of residential solar batteries lasts between five to fifteen years. For instance, gel batteries typically last for about 1100 cycles, lithium-ion phosphate batteries endure around 7000 cycles, and absorbed glass batteries have a lifespan of approximately 600 cycles.
Lithium-ion solar batteries, which are becoming increasingly popular, have a longer lifespan than lead-acid batteries, typically lasting 10-15 years or more. They are also more efficient and have a higher energy density, meaning they can store more energy in a smaller size and weight.