I used to buy several battery packs a year, now I only use the Pirl.
I really like knowing how much juice is left, instead of the four dots other battery packs give you.
Tanvir, New York
We get frequent blackouts which last several hours. This keeps my electronics going for several days!
It's great for long road trips with the family, especially to keep the kids' iPads going.
Tom, San Francisco
Super cool gift for boat owners.
Matt, San Diego
I'm surprised how long it lasts!
Emily, Kansas City
Developed large, on-grid, power plants at AES Corporation
Financed industrial companies at Credit Suisse
MBA: Harvard Business School
BA: St. Lawrence University
15 years experience in digital, industrial design and development
Development: Digital electronics and embedded development (Microchip PIC, AVR, Arduino), manufacturing processes and CNC
33 years experience in design, development, test and evaluation of advanced technologies for national security
7 years experience in design and development of microcontroller-based consumer electronics
PhD Physics/BS Physics/BS Mathematics: Massachusetts Institute of Technology
Address: San Francisco, CA