[ GLOSSARY DEFINITION ] Battery

power bank

A portable external battery used to recharge devices on the go.

Also known as: portable charger

Full Definition & Technical Explanation

A power bank is a portable battery with USB output that recharges phones and other devices away from mains power. Its capacity is rated in mAh or Wh, and its output wattage sets how fast it can charge.

See wireless power bank.

Where power bank Matters

Frequently Asked Questions

What is power bank?

A portable external battery used to recharge devices on the go.

What terms are related to power bank?

Related Battery terms include C-rate, AC adapter.

Related Technical Terms

C-rate
A charge/discharge rate relative to battery capacity. Battery
AC adapter
The external power supply that converts mains AC power into the DC voltage a device needs. Battery
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