How to Check a Refurbished Laptop Before Buying

1. Ask for a verifiable diagnostic report

The single biggest difference between a good refurbisher and a risky one is proof of testing. A trustworthy seller can show you a diagnostic report for the exact device — tied to its serial number — covering CPU, RAM, storage, battery, display, and thermals.

If the seller uses RouteCheck, you can enter the laptop's serial number on our verify page and see the full certified test results yourself. If a seller can't show any per-device test evidence, treat the purchase as untested.

2. Battery health: the number that matters

Batteries are the most common weak point in refurbished laptops. Ask for the battery's design capacity versus current full-charge capacity. Anything above 80% of design capacity is healthy; 60-80% is usable but ageing; below 60% budget for a replacement.

• On Windows, run powercfg /batteryreport to generate a battery health report.
• Check cycle count where available — under 500 cycles is typically fine.
• Be wary of listings that say "battery not covered by warranty".

3. Storage wear and health

SSDs wear out with use. Ask whether the drive's SMART data was checked. Key signs of trouble: reallocated sectors, high percentage-used values on NVMe drives, or any pending sector counts. A refurbished machine should ship with a drive at low wear — ideally under 30% of rated endurance used.

4. Screen, keyboard, ports and hinges

Physical faults are easy to spot in five minutes if you know where to look.

• Display a solid white, then solid black image — look for dead pixels, bleed, and pressure marks.
• Type a full sentence using every row of the keyboard; test modifier keys.
• Plug something into every USB port, the headphone jack, and the charger port.
• Open the lid one-handed — a healthy hinge holds any angle without wobble.

5. Thermals and sustained performance

A laptop can feel fast for a minute and throttle to a crawl under load if its cooling has degraded or the thermal paste has dried out. Proper refurbishers run sustained stress tests, not just a boot check. Ask whether the machine was stress-tested and for how long — and what the peak temperatures were.

The bottom line

A refurbished laptop with documented, per-device test evidence is often a better buy than a cheap new machine. One without any test evidence is a gamble. Always prefer sellers who can prove their testing — and verify the report yourself when you can.