ReJoule
ReJoule is a technology company that maximizes the value of every battery by combining hardware, software, and AI algorithms to provide fast and accurate measurements of batteries' state of health (SOH). Their technology uses electrochemical impedance spectroscopy, a non-invasive technique compatible with any battery chemistry, form factor, and voltage, designed for flexibility and scalability. ReJoule serves industries including automakers and battery repurposers, helping diagnose battery health quickly to optimize battery diagnostic processes and enable battery repurposing, thus extending battery life and supporting the all-electric revolution. The company is recognized for its innovative, fast, and precise battery health monitoring technology, positioning it as a key player in the EV and battery management ecosystem.
ReJoule
ReJoule is a technology company that maximizes the value of every battery by combining hardware, software, and AI algorithms to provide fast and accurate measurements of batteries' state of health (SOH). Their technology uses electrochemical impedance spectroscopy, a non-invasive technique compatible with any battery chemistry, form factor, and voltage, designed for flexibility and scalability. ReJoule serves industries including automakers and battery repurposers, helping diagnose battery health quickly to optimize battery diagnostic processes and enable battery repurposing, thus extending battery life and supporting the all-electric revolution. The company is recognized for its innovative, fast, and precise battery health monitoring technology, positioning it as a key player in the EV and battery management ecosystem.
TL;DR
What they do: Fast, non‑invasive battery state-of-health diagnostics using electrochemical impedance spectroscopy (EIS)
Tech focus: Hardware + software + AI for rapid SOH measurement compatible with any chemistry or form factor
Customers / use cases: Automakers, battery remanufacturers/repurposers, end-of-line QC and in-field testing
Founded / HQ: Founded 2019; Signal Hill, California
Team size: ~17 employees
Company Overview
Problem Domain
Battery diagnostics, end-of-line quality control, battery remanufacturing/repurposing, and in-field battery testing for EVs and lithium-ion systems.
Founded
2019
Industry
CleanTech / Energy / Mobility
Tech Stack
Funding Track Record
Public profiles report grant funding, including from the U.S. Department of Energy
Investor Signal
“Grant funding reported from U.S. Department of Energy and other clean energy programs”