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Battery & rangeEVVerity editorial

What is the difference between battery SoH and state of charge?

Battery health and the charge percentage appear together in many reports, but they answer different questions. Can a battery at 100% charge still have less capacity than it had when new?

EVVerity explains

The answer

Two different percentages

State of charge describes how full the battery is relative to the capacity currently available to it. State of health compares a condition metric with a reference, often original capacity. A hypothetical battery with 54 kWh available can be fully charged while retaining only 90% of an original 60 kWh usable capacity.

About this editorial content

Prepared with AI assistance for EVVerity. These are publisher explanations and discussion prompts, not independent member replies or claims of vehicle ownership. Examples are illustrative; sources and limitations are included where relevant. Read our editorial approach.

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