Battery life

See also

The Librem 14 has a powerful 66.8Wh battery. This provides approximately 9 hours and 48 minutes of battery life with maximum screen brightness and all sensors enabled. This is the uptime you can expect with light use such as reading a text document or other simple low-CPU applications.

Battery monitor: Max brightness, all sensors on

Setting the screen to 50% brightness provides an additional 47 min of battery life.

Here is the timelapse of a 50% brightness discharge test:

Battery monitor: Include 50% brightness

With Wifi powered off and the screen brightness turned down, you can expect around 16 hours and 17 minutes.

Battery monitor: Minimum screen brightness, WLAN off

Playing 1080p 60FPS video lasted 4 hours and 8 minutes from a full charge to automatic shutdown.

Playing HD video

The Librem 14 features a lot of computing power in a 14” frame. While you will not likely need to use all 12 threads at their max frequency, it is useful when doing development work. The Librem 14 battery lasted 2 hours and 24 minutes with all 12 threads at maximum frequency.

Battery monitor: CPU stress test

The Librem 14 takes about 4 hours and 40 min to charge from 0% to 90%. The last 10% takes the longest to complete.

Battery monitor: Charge 0-100%

With the Librem 14 powered down, you can charge it from 0% to approximately 42% in 2 hours.

For extra convenience, the Librem 14 can be charged with any compatible USB-C charger. This offers an additional method to keep the battery topped off while away from the main charger.

Plugging a USB-C charging cable into a Librem 14

Here are the complete test results:

Plugging a USB-C charging cable into a Librem 14