Reuse
AC adapters are often reused on other appliances, but there are 5 parameters which all must suit the appliance:
- Voltage
- Current capacity
- Polarity (not relevant with AC)
- Voltage regulation (or stabilization)
- Connector type
"Universal" adapters are available on which the user can adjust these parameters, except for voltage regulation (which is a fixed characteristic of a given power supply design).
Read more about this topic: AC Adapter