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Main image of L21B4P71 Laptop Battery 57Wh 3711mAh Replacement for Lenovo T14s Gen 3 21BR 21BS 21CQ 21CR / T14s Gen 4 21F6 21F7 21F8 21F9 Series 5B11M90033 L21L4P73 L21M4P75 L21D4P74 15.36V 4-Cell

Alt view image 2 of 5 - L21B4P71 Laptop Battery 57Wh 3711mAh Replacement for Lenovo T14s Gen 3 21BR 21BS 21CQ 21CR / T14s Gen 4 21F6 21F7 21F8 21F9 Series 5B11M90033 L21L4P73 L21M4P75 L21D4P74 15.36V 4-Cell

Alt view image 3 of 5 - L21B4P71 Laptop Battery 57Wh 3711mAh Replacement for Lenovo T14s Gen 3 21BR 21BS 21CQ 21CR / T14s Gen 4 21F6 21F7 21F8 21F9 Series 5B11M90033 L21L4P73 L21M4P75 L21D4P74 15.36V 4-Cell

Alt view image 4 of 5 - L21B4P71 Laptop Battery 57Wh 3711mAh Replacement for Lenovo T14s Gen 3 21BR 21BS 21CQ 21CR / T14s Gen 4 21F6 21F7 21F8 21F9 Series 5B11M90033 L21L4P73 L21M4P75 L21D4P74 15.36V 4-Cell

Alt view image 5 of 5 - L21B4P71 Laptop Battery 57Wh 3711mAh Replacement for Lenovo T14s Gen 3 21BR 21BS 21CQ 21CR / T14s Gen 4 21F6 21F7 21F8 21F9 Series 5B11M90033 L21L4P73 L21M4P75 L21D4P74 15.36V 4-Cell

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L21B4P71 Laptop Battery 57Wh 3711mAh Replacement for Lenovo T14s Gen 3 21BR 21BS 21CQ 21CR / T14s Gen 4 21F6 21F7 21F8 21F9 Series 5B11M90033 L21L4P73 L21M4P75 L21D4P74 15.36V 4-Cell

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SpecificationsBattery Model:L21B4P71 // Voltage:15.36V // Capacity:57Wh 3711mAh 4-cell // Color:Black // Condition:Brand New.
Replacement for Part NumberL21B4P71 SB11M89834 5B11M90033 SB10W51978 5B11M90033 L21L4P73 SB11M89831 5B11M90030 SB10W51978 5B10W51874 L21M4P75 SB11M89832 5B11M90031 SB10W51976 5B10W51875 L21D4P74 SB11M89833 5B11M90032 SB10W51977 5B10W51876
Compatible with Machine Modelsfor Lenovo T14s Gen 3 (Type: 21BR 21BS 21CQ 21CR) Series; for Lenovo T14s Gen 4 (Type: 21F6 21F7 21F8 21F9) Series.
SafetyAll FCZFCZ products are Certified by CE, UL for safety. Each battery is factory tested before shipment and at good condition, and have its mark. Built-in circuit protection ensures both safety and stability. Each battery has high capacity to provide enduring, continual use.
InstructionsPlease open the back cover of the laptop before purchasing and confirm that the original battery type is the same as the picture. Please read the battery instruction manual carefull

Overview

Specs

Reviews

Specification:
Battery Model:L21B4P71
Voltage:15.36V
Capacity:57Wh 3711mAh 4-cell
Battery Type: Li-ion
Condition:Brand New
Warranty:30-day refund and 12-month warranty.

Replacement for Part Number:
L21B4P71 SB11M89834 5B11M90033 SB10W51978 5B11M90033
L21L4P73 SB11M89831 5B11M90030 SB10W51978 5B10W51874
L21M4P75 SB11M89832 5B11M90031 SB10W51976 5B10W51875
L21D4P74 SB11M89833 5B11M90032 SB10W51977 5B10W51876

Compatible Machine Models:
for Lenovo T14s Gen 3 (Type: 21BR 21BS 21CQ 21CR) Series
for Lenovo T14s Gen 4 (Type: 21F6 21F7 21F8 21F9) Series

Additional Information
First Listed on Newegg	January 12, 2026

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Return for refund within: 30 days
Return for replacement within: 90 days
This item is covered by E-Transit Limited Return Policy

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