How Long Should A Solar Battery Last? Understanding Lifespan
When assessing solar battery lifespan, consider factors such as cycle life, depth of discharge, temperature, battery type, and usage patterns. Understanding these factors is
The life expectancy of a solar battery varies depending on usage, typically lasting between five and 15 years. Keep in mind that the average solar PV panel lasts around 20-30 years, so you may need to replace these batteries twice or more during the lifespan of your panels.
A battery's cycle life indicates the lifespan of a solar battery. Similar to a phone or laptop battery, a solar battery can only be fully recharged and emptied a certain amount of times. Therefore, the larger amount of lifecycles a solar battery is able to perform the better!
The best batteries can usually go through roughly 6,000 cycles in total, and most homes will typically cycle through their battery around once per day. If you're not sure whether to add a battery to your solar panel system, check out our guide to whether solar batteries are worth it.
Lead-acid batteries (flooded or sealed): These are the most traditional type and also the shortest-lived, typically lasting 3 to 7 years. They're more affordable upfront but require regular maintenance and don't hold up as well over time. When people talk about battery lifespan, they're often referring to “cycle life.”
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