Lenovo ThinkPad 11.55V 4420mAh Li-Ion Notebook Battery Replacement

Overview

The Lenovo 5B10W13905 is a lithium-ion replacement battery designed specifically for the ThinkPad T490 notebook. It delivers an 11.55 V output and 4420 mAh capacity, providing reliable power to keep your laptop running through typical daily tasks like document editing, video conferencing, and light multimedia use. This battery offers a practical solution to extend your laptop’s runtime without the need for a full device replacement, making it easy to install and ready to support your mobile productivity.

Key features

• Provides steady and consistent power output to maintain smooth laptop operation during work or entertainment
• High-capacity 4420 mAh cells designed for longer unplugged use, reducing the frequency of recharging
• Engineered for efficient charging to minimize downtime and maximize productivity on the go
• Factory-matched form factor ensures a seamless fit with the ThinkPad T490 chassis, preserving the laptop’s slim design
• Lightweight construction at just 7.76 oz, so it adds minimal bulk to your laptop bag or workspace
• Durable build quality tested by Lenovo to withstand daily charge cycles and provide long-term reliability

Key specs

• Voltage: 11.55 V
• Capacity: 4420 mAh
• Battery type: Lithium-ion
• Weight: 7.76 oz (approximately 220 grams)
• Compatibility: Lenovo ThinkPad T490 notebook

Ideal uses and environments

This battery replacement suits a variety of users who rely on their ThinkPad T490 for daily tasks. Students benefit from extended battery life during classes and study sessions without needing constant access to power outlets. Remote workers and professionals can confidently use their laptops in coffee shops, airports, or during travel, knowing their device will last through meetings and presentations. IT departments can also use this battery to extend the lifespan of their laptop fleets, reducing costs and downtime associated with full device replacements.