Hardware

Laptop Battery Care: How to Make It Last Longer

Last updated November 6, 2026 · By the PC Guide Info editorial team

Laptop batteries are consumable parts, but how you use them affects how long they stay healthy. These habits make a real difference.

Avoid extreme heat

Heat is the biggest enemy of lithium-ion batteries. Do not leave your laptop in a hot car, and do not block its vents by using it on a bed or sofa. A hard, flat surface or a laptop stand allows better airflow.

Avoid extreme charge levels

Keeping a battery at 100 percent for long periods, or letting it fall to 0 percent regularly, increases wear. Many laptops now include a battery care setting in the manufacturer app or BIOS that limits charging to around 80 percent. This is useful if the laptop is mostly plugged in.

Reduce power use

Lower the screen brightness, since the display is one of the biggest consumers of power.
Use the built-in battery saver mode when you are away from a charger.
Close programs you are not using and disconnect unused USB devices.

Use the right charger

Use the charger that came with the laptop or a reputable certified replacement with the correct power rating. Cheap, uncertified chargers can damage the battery and are a safety risk.

Check battery health

Windows can generate a battery report. Open Command Prompt and type powercfg /batteryreport to create an HTML report showing design capacity and current capacity.

When to replace it

If the laptop shuts down suddenly, the battery lasts only a short time, or the case looks swollen, stop using it and contact the manufacturer or a qualified repair service. A swollen battery is a safety hazard.

This article is for general information only and is not professional advice. Features, prices and menu names may change between software versions. See our disclaimer.