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Tom’s Hardware
Tom’s Hardware
Technology
Kunal Khullar

'Self-replaceable batteries' return with the Dynabook Portégé Z40L-N business laptop

Dynabook Intel Corporation Apple
The Dynabook Portégé Z40L-N with swappable battery on a blue background.

Dynabook has introduced the Portégé Z40L-N, a new 14-inch Intel Lunar Lake business laptop featuring a simple user-replaceable battery, a feature that has become rare in modern laptops. The device is designed for professionals who require a durable and portable machine with long-term usability.

Weighing under 1kg (approximately 2.2lbs), the Portégé Z40L-N has a magnesium alloy chassis that meets MIL-STD-810H standards for durability. It is built to withstand drops, shocks, and environmental stress, making it suitable for mobile work environments.

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