The average lifespan of a solar battery system varies depending on several factors, including the type of battery, usage patterns, and environmental conditions. Generally, solar batteries last between 5 to 25 years, with most systems averaging 10 to 15 years for lithium-ion batteries, which are the most common type used today.
- Lithium-ion batteries are favored for their long lifespan and high depth of discharge, typically lasting 10 to 15 years. They are more expensive but offer better performance and durability compared to other types.
- Lead-acid batteries have a shorter lifespan, usually lasting between 3 to 7 years, and require more maintenance than lithium-ion batteries.
- Flow batteries are less common but can last 15 to 25 years due to their ability to fully discharge without significant degradation.
Key factors influencing the lifespan of solar batteries include the number of charge/discharge cycles, ambient temperature, and maintenance practices. Proper care and installation can significantly extend the life of a solar battery system.
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