Battery and charging the right way

In short: Lithium batteries dislike both heat and constant deep discharge. Charge between roughly 20 and 80 % if possible and use a suitable charger.

In more detail: Batteries age with charge cycles and heat. After some years capacity drops. A replacement is then often cheaper than a new device.

In Depth

• Charger: Original or certified (USB-C with suitable power).
• Avoid heat: Not in the sun or under a pillow while charging.
• Saving battery: Lower brightness, restrict location services and background apps, battery-saver mode.
• Do not store empty: For storage charge to about 50 %.
• If the battery swells: Stop using the device and have it disposed of properly.
• Laptop: Running permanently on the charger is uncritical, modern devices control charging.

See also: Smartphone basics: touch, apps and settings, Turning a computer on and off