OUWEE Laptop Battery for Lenovo ThinkPad T480S 57Wh

OUWEE L17L3P71 / L17M3P71 is a direct-replacement 11.58V, 57Wh (4920mAh) Li‑ion battery designed to restore runtime to Lenovo ThinkPad T480S notebooks.

If your ThinkPad T480S no longer holds charge or the original battery has reached end of life, this OUWEE pack presents a high‑capacity, OEM‑compatible replacement. It matches the common Lenovo part numbers (L17M3P71, L17L3P71, L17M3P72 and their factory SKUs) and swaps into the T480S series without major modifications when the connector and physical dimensions align.

Will this battery fit my Lenovo ThinkPad T480S?

It is built to be compatible with the T480S family and listed Lenovo part numbers, but physical connectors and minor factory variations can differ between assemblies. Confirm your laptop’s original battery part number and visually compare the connector and shape before ordering.

• Matches Lenovo SKUs: L17M3P71, L17L3P71, L17M3P72 and 01AV478/01AV479/01AV480.
• Voltage: 11.58V, Capacity: 57Wh / 4920mAh — same electrical profile as many T480S packs.
• Check the cable length and connector image against your existing battery to ensure fit.

How do I install and get the new battery recognized?

Installation is straightforward if you follow safe laptop disassembly steps and confirm connectors are fully seated. If the system does not immediately detect the new pack, reseat the connector, then perform a short charge/discharge cycle to calibrate the battery management system.

• Power down the laptop and remove AC power before swapping the battery.
• Ensure the battery connector is fully plugged in and free of debris.
• If not recognized, discharge to about 5% (avoid 0%), then charge fully and repeat 3–4 cycles to stabilize reporting.

What are the electrical and safety specifications?

This replacement is a lithium‑ion module with an 11.58‑volt nominal rating and a 57Wh (4920mAh) capacity, suitable for typical mobile productivity needs. Use manufacturer‑recommended charging methods, avoid extreme temperatures, and handle the pack per standard Li‑ion safety practices.

• Battery chemistry: Li‑ion for consistent energy density and performance.
• Rated voltage: 11.58V — matches Lenovo factory specifications for T480S variants.
• Capacity: 57Wh / 4920mAh to restore practical run times comparable to original packs.

Are there any caveats or compatibility checks I should perform?

Because multiple factories manufacture compatible batteries, small differences (size, cable routing, or connector style) can exist. Always verify the physical appearance and connector orientation in the product photos against your current battery before purchasing.

• Compare product images to your battery for matching screw points and cable length.
• Confirm part numbers stamped on the original pack when available.
• Keep firmware and BIOS updated; some systems may require battery reporting fixes after replacement.

Who is this for: This OUWEE replacement battery is intended for owners of Lenovo ThinkPad T480S laptops who need a tested Li‑ion replacement that mirrors common Lenovo part numbers and specifications. It suits technicians, business users, and power users seeking to restore portable runtime without replacing the whole machine — provided they confirm physical connector compatibility before ordering.