What is the difference in service life between lead-acid batteries and lithium batteries?

　　1. Cycle life: Lithium batteries typically have a longer cycle life. The cycle times of lithium batteries can reach 700 to 1000 times, or even more, while the cycle times of lead-acid batteries are generally between 300 and 500 times.

　　2. Calendar lifespan: Under normal use and maintenance conditions, the calendar lifespan of lithium batteries can reach 4 years or longer. By contrast, the calendar life of lead-acid batteries is typically around 2 years, although in some cases, their lifespan can be extended through proper maintenance.

　　3. Deep discharge capability: Lithium batteries are typically able to withstand deep discharges without causing significant damage to the battery, which helps improve their cycling efficiency and lifespan. If lead-acid batteries are frequently subjected to deep discharge, it will accelerate their aging process.

　　4. Charging and discharging rate: Lithium batteries can withstand higher charging and discharging rates, which helps reduce battery aging during the charging and discharging process. Lead acid batteries may age faster at high charging and discharging rates.

　　5. Environmental adaptability: Lithium batteries have better temperature adaptability and can operate over a wider temperature range, while lead-acid batteries may experience performance and lifespan issues at extreme temperatures.

　　6. Maintenance requirements: Lead acid batteries require regular checks on electrolyte levels and battery terminal voltage, while lithium batteries are typically considered "maintenance free" batteries because they do not require these routine maintenance steps.

　　7. Aging performance: After lead-acid batteries age, the most common problem is a decrease in battery life, which may manifest as the battery being unable to provide sufficient power to support device operation. The aging of lithium batteries may manifest as a gradual decrease in battery capacity until it cannot meet the equipment requirements.

　　8. Battery Management System (BMS): Lithium batteries are typically equipped with BMS, which can optimize the charging and discharging process and extend battery life. Lead acid batteries may not have such a system to optimize their performance.

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