Solar Battery Life Questions Answered for Container Sizing
Cycle life means how many times a battery can charge and discharge before it stops working. If cycle life is longer, you do not need to replace batteries as often.
The lithium-ion solar batteries being made today have an expected operational lifespan of 10 to 15 years, depending on the model, chemistry, usage, and the average temperature of the unit. However, home battery storage doesn't simply shut down after a certain length of time.
Exactly when this day comes depends on your energy needs and the factors described above. However, one thing is certain: When it's time to supplement your energy storage in 10-15 years, solar batteries will be a fraction of the price they are today.
With solar panels warrantied for 25-30 years and batteries warrantied for 10-15, there will likely come a time when you need to supplement or replace your battery storage. Exactly when this day comes depends on your energy needs and the factors described above.
The battery starts the day with a minimum charge, charges to 100% using excess solar generation throughout the day, and then discharges as much as possible during the evening and night.
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