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Lenovo ThinkPad T15 Series

Processor:

Display:

Cosmetic Condition:

Functionality:

Charger Included?

The Lenovo ThinkPad T15 is a 15.6-inch business laptop built for people who wanted the classic ThinkPad reliability with a bigger screen than the 14-inch T-series models. It sits in Lenovo's T-series, the line IT departments have standardized on for years because of its durable chassis, serviceable internals, and long support cycle. This page covers the T15 configured with a 10th Generation Intel Core i5 or Intel Core i7 processor, in either a touchscreen or non-touch display. These units still have resale value because the T15's build quality and repairability age well, and because businesses refreshing fleets keep steady demand for well-kept units. Pick your processor and display option, then your condition, in the picker above for an instant cash offer. If you want the full rundown of what happens after that, see how the process works, or head straight to sell your Lenovo laptop once you've confirmed the match below.

Confirm you have the ThinkPad T15

The fastest way to confirm your exact configuration is through Windows itself. Press Windows key + R, type dxdiag, and press Enter to see the processor and system model. For the Lenovo machine type and part number, run Lenovo Vantage if it's installed, or check the sticker on the underside of the chassis. Windows System Information (search "msinfo32") will also list the processor generation, which tells you whether you have the 10th Gen i5/i7 build covered here or a different generation of T15.

Intel Core i5 (10th Gen) configuration

  • dxdiag reports a Core i5 processor with a "10" as the first digits after "i5-"
  • Paired with either a non-touch or touchscreen 15.6-inch panel
  • Confirm via Settings → System → About, or System Information

Intel Core i7 (10th Gen) configuration

  • dxdiag reports a Core i7 processor with a "10" as the first digits after "i7-"
  • Also available in non-touch or touchscreen display form
  • Higher base clock and turbo speed than the i5 build in the same chassis

Prefer a visual check? The T15 carries the ThinkPad's usual black, soft-touch, carbon-fiber-reinforced lid with the red "i" dot logo. Look for the red TrackPoint nub between the G, H, and B keys and the three TrackPoint buttons above the touchpad. If your unit lacks a TrackPoint entirely, it isn't a T-series ThinkPad. For the exact machine type and serial, flip the laptop over and read the label near the regulatory markings, or use Lenovo's model finder if you'd rather not dig through menus.

Core hardware configurations

Processor

  • Intel Core i5, 10th Generation
  • Intel Core i7, 10th Generation
  • The i7 build commands the stronger resale value of the two

Graphics

  • Integrated Intel UHD Graphics
  • Handles office work, browsing, and video calls without a dedicated GPU

Memory

  • RAM is upgradable through two SO-DIMM slots, not soldered
  • A unit with more installed memory typically fetches a better offer

Storage

  • M.2 NVMe SSD in a single, user-accessible slot
  • Larger drives and healthier drive condition both help the quote

Display & audio

The 15.6-inch panel is offered here as a non-touch display or a touchscreen version, matching the picker above. A larger touch panel is more sensitive to cracks and dead spots, so check it carefully under bright light before you set a condition grade.

Stereo speakers are tuned with Dolby Audio for calls and media playback. Dual array microphones handle video conferencing without an external headset in most quiet rooms.

Security options on this chassis typically include a fingerprint reader built into the power button and, on some units, an infrared camera for Windows Hello face login. Both are worth testing before you grade the unit.

Ports & connectivity

The T15 keeps the port selection ThinkPad users expect from a full-size 15-inch business chassis, rather than trimming down to USB-C only.

Left side
  • USB-C (Thunderbolt 3)
  • HDMI
  • RJ45 Ethernet
Right side
  • USB-A 3.2
  • microSD card reader
  • Headphone/microphone combo jack
  • Kensington lock slot

Thunderbolt 3 Wi-Fi 6 Bluetooth TrackPoint Fingerprint reader Spill-resistant keyboard

Battery, build & more

Battery. The battery is internal rather than a user-swappable pack, so a weak battery lowers the condition grade but doesn't block a sale.

Build. The chassis uses Lenovo's carbon-fiber-reinforced construction and is built to MIL-STD durability testing, which is why T15 units tend to survive years of daily commuting better than consumer-grade laptops.

Software. The T15 shipped with Windows 10 and, since the 10th Gen Core processors meet Microsoft's requirements, most units can run Windows 11 as well.

Market positioning. As a mainstream commercial ThinkPad, the T15 holds steady demand among buyers who want a durable, repairable Windows laptop rather than the latest thin-and-light. Clean units with the i7 processor and more RAM sit at the upper end of that range.

Frequently asked questions

01 How do I find the model number and exact configuration?
Check the sticker on the underside of the laptop for the machine type and serial number, or run "msinfo32" from the Windows search bar to see the full system summary on screen. For the processor specifically, "dxdiag" will show whether you have a Core i5 or Core i7 and confirm it's a 10th Generation chip. Lenovo Vantage, if installed, also reports the machine type directly. If the laptop won't boot, the bottom sticker is your only option, so have it ready before you select a configuration above.
02 How do I tell it apart from the ThinkPad T14?
Screen size is the fastest tell: the T15 has a 15.6-inch display, while the T14 uses a 14-inch panel in a visibly smaller chassis. Both share the same black, soft-touch design language and TrackPoint layout, so size and weight in hand are more reliable than looking at the logo or keyboard. If you're not sure by sight, System Information will list the exact model name under "System Model," which spells out T14 or T15 directly.
03 Can I sell it with damage, a weak battery, or if it won't turn on?
Yes. Cracked screens, worn batteries, keyboard issues, and units that won't power on can all still be sold; select the condition that matches and the quote adjusts accordingly. Before shipping, sign out of any Microsoft account tied to the machine and, if BitLocker is enabled, either suspend it or have the recovery key on hand. A locked Windows account can hold up processing, so removing it ahead of time gets your payment out faster.
04 What raises the trade-in value the most?
A clean, crack-free display and a battery that still holds a reasonable charge make the biggest difference on this model. The i7 processor and larger installed RAM or storage also push the offer higher than a base i5 build. Beyond hardware, a full factory reset with your accounts removed and the original power adapter included both help, since they mean less work before the laptop can be resold or redeployed.
05 How do I erase it and get paid?
Go to Settings → System → Recovery → Reset this PC, and choose "Remove everything" to wipe the drive. Before you do, remove the laptop from your Microsoft account under Settings → Accounts, and if BitLocker is active, suspend it so the reset completes cleanly. Once the reset finishes, the laptop no longer holds any of your data or account ties. Full steps, including how to handle a locked or damaged unit, are on our data erasure protocols page. Shipping is free and insured, and payment goes out after testing by PayPal, Venmo, Zelle, CashApp, or check.