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battery glossary

State of Health

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Battery State of Health quantitatively represents how much a battery has degraded since manufacture. SoH can vary significantly across cells within a single asset. Degradation affects how batteries perform under all conditions. Many manufacturers oversimplify and only warranty the availability of a percentage of the original battery capacity under idealized conditions, but the true state of health is much more complex.

What is Battery State of Health?

Battery State of Health quantitatively represents how much a battery has degraded since manufacture. SoH can vary significantly across cells within a single asset. Degradation affects how batteries perform under all conditions. Many manufacturers oversimplify and only warranty the availability of a percentage of the original battery capacity under idealized conditions, but the true state of health is much more complex.

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