What are the advantages of the service life of lithium batteries compared to lead-acid batteries?

　　The service life of lithium batteries is usually longer than that of lead-acid batteries. According to the search results, the average number of charge and discharge cycles for lithium batteries is 500-1000, while the number of cycles for lead-acid batteries is usually only around 300-350.

　　This means that under the same usage conditions, the lifespan of lithium batteries is approximately 3-6 times that of lead-acid batteries. For example, a 12V 100Ah lithium iron phosphate battery can have a lifespan of over 10 years with proper use and maintenance, while a lead-acid battery of the same capacity may need to be replaced after 2-3 years.

　　The advantages of lithium batteries over lead-acid batteries are mainly reflected in the following aspects:

　　1. Higher energy density: The energy density of lithium batteries is usually 3-5 times that of lead-acid batteries, which means that with the same capacity, lithium batteries are smaller in size and lighter in weight.

　　2. Longer cycle life: Lithium batteries have a much longer cycle life than lead-acid batteries and can withstand more charge and discharge cycles.

　　3. Lower self discharge rate: Lithium batteries have a slower power loss when not in use, while lead-acid batteries have a higher self discharge rate and will quickly lose power even when not in use.

　　4. Better temperature adaptability: Lithium batteries can operate over a wider temperature range, while lead-acid batteries' performance is affected at extreme temperatures.

　　5. More environmentally friendly: Lithium batteries do not contain heavy metals and have a smaller impact on the environment, while lead in lead-acid batteries may cause pollution to the environment.

　　6. Low maintenance requirements: Lithium batteries are usually considered maintenance free batteries, while lead-acid batteries require regular checks of electrolyte levels and battery terminal voltage.

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