Global Brain backs Exergy Power Systems and its ultra-fast battery tech

What's the deal? Global Brain, a Japanese venture capital firm, has invested in Exergy Power Systems, Inc., a company that develops the proprietary Exergy Battery and related energy solutions. The battery technology specialises in ultra-fast charging and discharging capabilities.

The investment was announced on May 11, 2026. No financial details were disclosed.

The signal: Dealroom classifies Exergy Power Systems as a "breakout" stage company, suggesting it has moved beyond early experimentation and is approaching commercial traction with its ultra-fast battery platform. Global Brain's backing aligns with that trajectory, positioning the firm to capture upside as grid-scale storage and high-power industrial applications increasingly demand charge/discharge speeds that conventional lithium-ion solutions struggle to deliver.

Read more: globalbrains.com