If you need portable power, Tether Tools’ new ONsite Power line of accessories may just do the trick.

ONsite uses D-Tap batteries to charge AC and USB-powered devices such as laptops, camera batteries, LED monitors & lights, tablets and phones. The device pairs with a standard D-Tap battery and has a pair of AC outlets and four fast-charging USB ports.

Tether Tools says the ONsite adapter is TSA-friendly and is sold in U.S. and international versions in 110 or 220 volts. It will retail for $90 and ship in November. A $17 car adapter will let you plug in the ONsite to a car so you can recharge on the road.

The company will sell an ONsite Aero V-Mount for using the adapter with the company’s Aero Laptop Mounting System. The Aero V-Mount will set you back $80.