Lenovo L21M4P71 Original Battery 52Wh 15.48V for ThinkPad T14 Gen 3, Gen 4, P14s

The Lenovo L21M4P71 battery price in BD at QASWATEC covers an original 52Wh, 15.48V Li-ion pack for the Lenovo ThinkPad T14 Gen 3, T14 Gen 4, ThinkPad P14s Gen 3 and P14s Gen 4 laptops. If your ThinkPad shuts down soon after unplugging, a new L21M4P71 restores its cordless runtime. The pack is black, new and tested before sale, with warranty from QASWATEC.

Key Features

• Battery type: Li-ion, new condition
• Capacity: 52Wh
• Voltage: 15.48V
• Original grade Lenovo L21M4P71 pack
• Fits ThinkPad T14 Gen 3 and Gen 4
• Fits ThinkPad P14s Gen 3 and Gen 4

Compatible Laptops and Part Numbers

This battery is listed for the Lenovo ThinkPad T14 Gen 3, T14 Gen 4, P14s Gen 3 and P14s Gen 4 series. It replaces the codes L21M4P71, L21L4P71, L21C4P71, L21D4P71, L21M4P72, L21L3P71, L21C3P71 and L21M3P71. Check the label on your old battery before ordering, and send us a photo if you are unsure about your exact model.

Signs the Battery Needs Replacing

• The laptop shuts down soon after unplugging
• Battery time has dropped sharply
• The charge percentage will not rise
• The pack swells or the base lifts

Why Replace It Early

A tired pack leaves a work laptop tied to a socket, and a swelling one can press on the trackpad or crack the case. Replacing it early keeps the laptop safe and portable.

What You Get

You receive a new L21M4P71 battery pack with warranty from QASWATEC. Our team can check the fit for you before you buy, so you avoid a wrong order and a second trip to the shop.

Care Tips for Longer Life

• Avoid draining the pack to zero often
• Keep the vents clear of dust
• Do not leave it at 100 percent for days

A cooler pack ages slowly, which slows capacity loss.

Before You Order

Match the part number and your laptop model. Send a photo of the label if you are unsure.

Buy Lenovo L21M4P71 Battery from QASWATEC

QASWATEC has served laptop users from Elephant Road, Dhaka since 2010. Visit the showroom to collect your battery, or order and we will deliver across Bangladesh.