Name: 42T4555 Lenovo 4-Cell Li-Ion Battery for ThinkPad T400 R400 T61 R61
Brand: Lenovo
SKU: 42T4555
Price: 70.96 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The Lenovo 4-cell Li-Ion Battery for ThinkPad T400, R400, T61, and R61 offers a straightforward solution to powering your laptop when you're on the move. It fits seamlessly into compatible models and sustains your device's operation during extended use away from outlets.

General Information
Brand	Lenovo
Part Number	42T4555

Technical Information
Battery Type	Li-Ion
number of batteries	1
number of cells	4
Compatibility	ThinkPad T400,R400,T61,R61

Miscellaneous
Assembly Required	Yes
Eco Friendly	Yes
Compliance Standards	WEEE, RoHS, cURus, CE, FCC, CCC, UL, TUV, cULus, CSA, cUL

Physical Characteristics
Weight	5.00
Condition	Refurbished

Product Description
This Lenovo 4-cell Li-Ion battery offers dependable power for several ThinkPad models including the T400, R400, T61, and R61. It's designed to keep your laptop running smoothly when you're away from a power source, making it a practical choice for business professionals and students alike. Often found in work or travel setups, this battery helps extend the usable time between charges. Users who depend on their laptops for long hours will find it especially useful to have a spare or replacement on hand. Key Features Capacity tailored to provide balanced power without adding extra bulk Compatible with multiple ThinkPad series for versatile use Built to maintain laptop performance through consistent energy delivery Simple installation ensures quick replacement without technical assistance Constructed with quality cells to support long-term durability This battery is commonly deployed in office environments, classrooms, and remote work locations where consistent laptop power is critical. Its reliable performance helps avoid interruptions caused by unexpected power loss, making it a practical accessory for keeping devices operational throughout the day.

Use Cases
The 42T4555 Lenovo 4-Cell Li-Ion Battery is primarily utilized in professional and mobile computing environments where Lenovo ThinkPad T400, R400, T61, and R61 laptops are in operation. It is especially beneficial for IT professionals, field engineers, and remote workers who require dependable power sources to maintain productivity without frequent access to charging facilities. How It's Used: Supporting IT administrators managing legacy ThinkPad laptops in remote office setups where prolonged battery life minimizes downtime. Enabling field service technicians to operate legacy systems during extended site visits without relying on power outlets. Facilitating academic institutions with computer labs that maintain older ThinkPad models requiring reliable battery replacements. Assisting business continuity in small and medium enterprises relying on ThinkPad T-series laptops for mobile productivity in client-facing roles. Providing hardware support teams with a cost-effective battery replacement option to extend the lifecycle of existing fleet devices. This battery ensures operational consistency across environments where ThinkPad T400, R400, T61, and R61 systems remain integral. By maintaining stable power delivery, it contributes to sustained device uptime and supports workflows reliant on these durable legacy platforms.

42T4555 Lenovo 4-Cell Li-Ion Battery for ThinkPad T400 R400 T61 R61

Product Overview

General Information

Technical Information

Miscellaneous

Physical Characteristics

Product Description

Use Cases