SunnyBAG

Manufacturer Graz / Austria

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SunnyBAG
It all started a few years ago when Stefan Ponsold was unhappy with the battery performance of his new iPhone. Knowing he could not extend the battery life, he wondered if there was a solution in the form of a mobile power supply to keep it charged. Inspired to create a practical and sustainable power source, Stefan began to develop a prototype using solar energy. The first prototype was an iPhone cover with an integrated solar panel. Having to let the phone lie in the sun for extended periods of time and the low capacity of the portable battery pack proved this to not be an ideal solution. Stefan knew that a larger solar panel area would capture more energy and produce enough electricity to charge an iPhone and other personal electronics. He thought to incorporate these panels into his shoulder bag and from there the idea for SunnyBAG was born. Incorporating solar panels and a high performance battery pack into a shoulder bag was easier said than done. With the help of his brother Martin, his father, and the family run upholstery business, Stefan fashioned his first fully functional solar bag in 2008. As part of his studies as an “Innovation Management” student, Stefan was given the task of developing a business plan. Together with a few colleagues, they developed a full scale business plan that would help turn SunnyBAG into a reality. After manufacturing a few solar bags by hand, Stefan proposed his business plan to Science Park Graz, a government funded office space for young entrepreneurs. Impressed with the product, Science Park offered support, mentorship and office space for Stefan to begin his business. SunnyBAG was officially founded on Sept. 1st, 2010 with Stefan Ponsold as the owner and sole employee. Soon after, the demand for SunnyBAGs would exceed supply and in early 2011 the first two employees would join the SunnyBAG team. The summer would bring three more employees in order to cope with growing demand, operations, and administrative tasks.
SunnyBAG
SunnyBAG
  • Address Nikolaiplatz 4 / 3. Stock, 8010 Graz | Austria
  • Tel +43 (0) 316/ 26 97 85

It all started a few years ago when Stefan Ponsold was unhappy with the battery performance of his new iPhone. Knowing he could not extend the battery life, he wondered if there was a solution in the form of a mobile power supply to keep it charged. Inspired to create a practical and sustainable power source, Stefan began to develop a prototype using solar energy. The first prototype was an iPhone cover with an integrated solar panel. Having to let the phone lie in the sun for extended periods...

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