Osun Group is a designer and manufacturer of innovative custom battery and charger systems with the world headquarters located in Shenzhen. Osun Group was:

• Founded in 2004 by Dr. Johnson Wu and Alisa Wei (inventor of Nickel Metal Hydride technology) to produce single NiMH cells in the China
• Funded by local business people and physicians in Shenzhen who collectively wanted to create an energy company located within the China
• The third company in the world to obtain a license to manufacture and distribute NiMH cells and battery assemblies.

With 22 years of experience, Osun Group has produced innovative custom battery cells, battery packs and chargers for a wide range of applications including: portable medical equipment, handheld electronics, safety, security, construction and military.