Battery life in refurbished laptops

You want a laptop you don’t have to plug in right away. That’s why at DSL Tech we test every battery thoroughly: first in Windows, then with professional test software. Only when the battery passes do we ship the laptop.

Our quality standard

Battery health is at least 70%. If the measured health is below 70% or the practical runtime falls below our model-specific minimum, we replace the battery with a new one.

How do we test the battery?

• Windows check: we read values such as Full Charge Capacity, Design Capacity, and wear level.
• Professional load tests: with specialized software we measure charge/discharge behavior, stability under load, and the real-world endurance in realistic scenarios (browsing, Office, video).

What do we look at?

• Expected runtime under normal use (in hours)
• Capacity: ratio of full charge to design capacity (health percentage)
• Charging/discharging behavior and any unexpected dips
• Wear and temperature behavior (where relevant)

Why so strict?

• Comfort: work on the go without constantly needing a power outlet.
• Reliability: no unpleasant surprises shortly after purchase.
• Sustainability: a good battery extends the device’s lifespan.
• Value: top quality for less than new — with solid assurances.

Still experiencing battery issues?

No worries. If you notice unusual behavior within the warranty period (e.g., rapid drain or unexpected shutdowns), please contact us. We’ll retest and fix it — with repair or replacement, depending on the outcome.

Will I always get an “as-new” battery?

Not every battery is factory-new, but it always meets our 70% threshold and the minimum runtime. If not, we’ll install a new battery.

Does battery life vary by model and usage?

Yes. Screen, resolution, processor, graphics, and your settings (brightness, Wi-Fi, apps) all affect battery life. That’s why we test with realistic profiles rather than only theoretical values.

Why no fixed “hours” promise?

Battery life differs by model and configuration. We apply model-specific minimums and our fixed 70% health standard, so you know exactly what to expect.