Rechargeable 12V Battery pack for Portals
Portals comes with an AC power cable. You simply plug your portal into the wall for continued operation. This also powers the effect pedals. (except the compact and mini portals because they already can run on batteries).
Most people won't have electricity available when investigating. This is an option:
Rechargeable 12 Volt Battery Pack
No wall power needed!
Uses 8 x "AA" batteries
Usually Ships alogn with the portal (7 to 10 days)
Without Portal 3-5 days