The Chinese global player BYD (Build your Dreams) was founded in Shenzhen in 1995 and is the world's largest manufacturer of rechargeable batteries. In 2010, the group was voted the most powerful technology company in the world. In addition to the main business of mobile phones, the batteries have also been successfully used in home storage systems for several years. The universal B-Box can be flexibly scaled and used in any application (island, backup or regular grid).