What a battery health report actually tells you

What a battery health report actually tells you is easier to judge when you look at real use, not only the figures in the advert. This guide covers what to check, which numbers matter, and where buyers usually go wrong.

Quick check

• Compare the numbers with your usual route and budget.
• Ask for documents instead of a verbal promise.
• Leave a reserve in range, time, and money.

A percentage is a snapshot

Reports estimate remaining capacity against a new pack. Two cars with the same figure can still feel different on a cold motorway.

Usable versus total

Manufacturers keep a buffer. Ask whether the report uses usable energy, otherwise you may compare two different tanks.

How the car was charged

Frequent DC rapid charging and heat can age a pack faster. A gentle home-charged car often looks better than the mileage suggests.

What to do next

Use the report to set a price and a test route. Then confirm the car still meets your daily range with a reserve.