[ GLOSSARY DEFINITION ]
Battery
AC adapter
The external power supply that converts mains AC power into the DC voltage a device needs.
Also known as:
charger
power adapter
Full Definition & Technical Explanation
An AC adapter plugs into a wall outlet and converts alternating current into the low-voltage direct current a device requires for charging or running. Its rating determines how much power it can deliver.
See charging wattage and wired charging.
Where AC adapter Matters
Smartphones
Laptops
Frequently Asked Questions
What is AC adapter?
The external power supply that converts mains AC power into the DC voltage a device needs.
What terms are related to AC adapter?
Related Battery terms include trickle charge, C-rate.