Yves Behar's San Francisco studio Fuseproject has designed an octagonal portable charger that can accommodate a computer, a smartphone and a tablet at the same time (+ slideshow).

Called Zolt, the battery pack has three USB ports and was developed with Avogy – a Silicon Valley-based technology company focused on compact and efficient power sources.

Fuseproject designed both the object and its identity, including the name, graphics and packaging.

By offsetting the octagonal outer shell with the eight-sided inner component, venting holes are created at the end to keep the battery cool. The nearly cylindrical shape also allows users to wrap cords around the pack for easy carrying during travel.

"Given the skill of the technologists building this new brand, we wanted to focus the brand attributes around this idea of expertise, boldness and innovation," said Behar. "The name, Zolt, sounds just that – electric, charged, buzzy."

The brushed casing is available in dark grey, dark purple and bright red.

"We selected a colour palette that would exemplify this as well, with bold and luminous colours like electric orange, ultraviolet and graphite," Behar added.

The pack measures 3.6 inches long (93 millimetres) with a 1.3-inch diameter (34 millimetres) and weighs 3.5 ounces (99 grams).

Zolt's slim profile is designed to allow for use in tight spaces like plane or car seats, compared to a conventional rectangular battery pack.

The charger's electrical prongs fold into one end, and the cylinder within the octagon pivots 90 degrees so devices can be plugged in while the Zolt pact is charging in an outlet.

Behar's studio also recently designed a watch for Movado and an expanded electronic lock system for August.