What We Offer

Our hardware can measure impedance - it's a critical health metric that allows us to provide...

Real-Time Health Data

ReJoule designs and builds a battery management system (BMS) that monitors, protects, and enhances the performance of large-format lithium batteries. Our BMS takes onboard advanced measurements to optimize battery lifetime. With our proprietary technology, ReJoule can make batteries more reliable, efficient, and long lasting.

Battery Analytics

Once our advanced BMS reports critical battery data, our analytics platform organizes and maximizes battery performance. You can think of our technology as the internet of things (IoT) for battery packs. As we collect, organize, and process more data, we can improve battery life.

Battery Evaluation

Batteries are becoming increasingly custom with a wide variation in design, performance, and state-of-health. We specialize in testing and grading battery modules used in electric vehicles (EVs) and energy storage. Our custom in-house battery cycler can test multiple batteries in parallel to reduce test time and maximize performance and productivity.

ReJoule was founded in 2017 in Garden Grove, CA to focus on improving the energy efficiency of batteries to support our clean energy future.

Our Supporters

We’re proud recipients of the NSF SBIR grant!

We’re also part of LACI’s Energy Innovator’s Program Cohort 3

You may have seen us in…

February 2019 – Zora participated in a general pitch hosted by Startup Coil in Santa Monica

December 2018 – Zora participated in an aerospace pitch hosted by Starburst Accelerator in Silicon Valley. We ranked #2 on by the audience on “Desire to Work With”!

November 2018 – Steven pitched twice! First at LA CoMotion in Los Angeles and then in Atlantic Canada.

September 2018 – ReJoule had our first pitch event done by Steven hosted by Autotech Council in Silicon Valley

Meet our founders and fantastic advisors.
Steven Chung

Steven Chung

Founder & CEO

Steven is the founder and Chief Executive Officer for ReJoule. He is extremely passionate about sustainable energy and is committed to making a positive impact on the environment through technology. He is responsible for the company's strategic vision, product development, and day to day operations. Steven received a master's in applied science in electrical engineering from the University of Toronto in 2016, where he specialized in power electronics and battery management. He received a bachelor's degree from the University of California, Irvine in 2011. Steven also worked as a power design engineer L-3 Communications Power Paragon, designing and testing power conversion systems.

Zora Chung

Zora Chung

Founder & CFO

As CFO, Zora manages ReJoule's finances and brings the business mindset. She is a trusted advisor to Steven on strategy, roadmap priorities, and most importantly expenses. She holds a bachelor's degree from UC Berkeley's Haas School of Business. She spent over a decade in corporate finance at Walmart and Clorox where she became an expert in optimizing and deconstructing business models to achieve sustainable growth. She has built financial models from scratch to evaluate financial viability of new and existing projects, which includes understanding industry trends, customer metrics, key market risks, regulations, negotiation strategy, and resource needs.

Nick Black

Nick Black

Advisor

Nick Black is an active entrepreneur, board member and investor with deep industry experience inside automotive and connected car. After founding CloudMade in 2008 he ran the company’s product planning, design and sales efforts - leading them to success with automotive OEMs and ultimately M&A with Valeo in 2016. Nick is based in London (UK) where he continues to lead CloudMade whilst sharing his experience with startups which he invests in and advises.

Candice Yu

Candice Yu

Advisor

Candice Yu is an experienced business development and policy professional. Candice is currently a Business Development Manager at Stem, where she develops partnerships with solar companies to help commercial and industrial customers optimize the value of their energy assets. Candice previously led strategic planning and policy affairs at Mercedes-Benz Energy Americas.

James Lee

James Lee

Advisor

James Lee is the Head of Enterprise Operations at Udacity. Prior to Udacity, James joined LexisNexis in 2014 in conjunction with the sale of Coplogic, Inc., an enterprise SaaS company where he served as the COO. Prior to Coplogic, James co-founded and served as the CFO of Doppelganger, Inc., a venture-backed social gaming startup.

Russell Vare

Russell Vare

Advisor

Russell Vare has over 15 years of experience in the automotive industry, including Nissan and Mercedes-Benz. He’s led strategy, sales and marketing for the cross-over between EV and energy storage and has been successful in bringing new technologies to market. Russell is currently at Nuvve leading business opportunities in North America for vehicle-to-grid integration (V2G/VGI).

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