With the Freestyle Air Battery Airbrush Compressor Rechargeable NiMH replacement battery you will always be ready to spray with extra batteries. Charge one while using another. A fully charged battery is capable of 45 minutes of use at 10 psi.
The AC Power Adapter with international plugs (100-240V-50/60Hz) allows you to charge multiple batteries at the same time, or keep a charger at multiple locations. It will also allow you to power the unit directly without the battery.