Question 1

Does battery health affect how much my Tesla is worth?

Accepted Answer

Increasingly, yes. Mileage alone barely dents a used Tesla's price — electric motors have far fewer wearing parts than a combustion engine — but mileage doesn't tell a buyer anything about the one component that actually determines how far the car will go on a charge. A documented battery health reading fills that gap, and buyers increasingly ask for one before committing to a used Tesla.

Question 2

Does Full Self-Driving (FSD) add resale value?

Accepted Answer

It can, but transferability isn't guaranteed and Tesla's policy on this has changed more than once, so it's worth confirming directly with Tesla — or having the seller confirm in writing — before pricing FSD into an offer. A car advertised as having FSD that turns out not to transfer to the new owner is worth exactly the same as one without it, despite the option having cost several thousand pounds originally.

Question 3

How is this valuation estimate calculated?

Accepted Answer

It starts from a market baseline for your model, year and variant, then adjusts for your mileage against a reference figure and the condition you select. It's a starting point for negotiation, not an appraisal — actual sale prices vary with regional demand, service history, accessories included, and how the specific car presents in photos and in person.

Question 4

Should I get my battery health checked before selling?

Accepted Answer

It's one of the highest-leverage things you can do before listing. A capacity reading from our battery health calculator, included as a screenshot in your listing, answers the question every serious buyer is quietly asking, and can be the difference between your car being cross-shopped on price alone and standing out as the well-documented option in a crowded listings page.

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