The lifespan of a lead-acid battery is usually expressed in charge and discharge cycles. In general, the deeper the battery is discharged before recharging, the fewer cycles it can achieve.
On average, lead-acid batteries provide between 300 and 1,000 cycles, depending on the application and usage conditions. In practice, most lead-acid batteries have an expected lifespan of approximately 3 to 5 years.
Proper charging, regular maintenance, and avoiding deep discharge can significantly extend battery life.
Well-known lead-acid battery brands include FIAMM and Yuasa.