Strapped in and ready for diagnostics. Our BattScan500V may look like part of a Halloween thriller, but the only thing it devours is test time. Happy Halloween from the ReJouligans! #ReJoule #Rejouligans #HappyHalloween #EVBattery #CircularEconomy #Remanufacturing #BatteryTesting
ReJoule
Appliances, Electrical, and Electronics Manufacturing
Signal Hill, California 3,236 followers
Maximizing the Value of Every Battery
About us
Batteries are growing in importance to our clean energy future and the issue of sustainable battery-waste management will become crucial. ReJoule is innovating on battery diagnostics to extract health data that does not exist outside of a lab environment. With this unprecedented data, electric vehicles and battery energy storage systems can be built more efficiently. Our technology can help enable a streamlined battery life cycle. Join us in our pursuit to maximize the value of every battery!
- Website
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http://www.rejouleenergy.com
External link for ReJoule
- Industry
- Appliances, Electrical, and Electronics Manufacturing
- Company size
- 11-50 employees
- Headquarters
- Signal Hill, California
- Type
- Privately Held
- Founded
- 2017
- Specialties
- electrochemical impedance spectroscopy, impedance, battery management systems, bms, battery modeling, energy efficiency, algorithms, battery testing, battery diagnostic, and second-life batteries
Locations
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Primary
Get directions
Gundry Ave
Signal Hill, California 90755, US
Employees at ReJoule
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David Mauer
Director Business Development @ ReJoule / Battery Circular Economy & Analytics / EVs & Energy Storage
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Nick Black
Founder-Led Sales Acceleration for Deep Tech & B2B | co-founder CloudMade (acquired)
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Candice Yu
Business Development at Kairos Power
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Zora Chung
CFO at ReJoule (a battery diagnostics and optimization startup)
Updates
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As the EV industry matures, remanufacturers are tackling one of the biggest questions: “Is this battery core really worth reusing?” One leading aftermarket company found their answer with ReJoule. “ReJoule’s tool helps us to remanufacture our EV batteries for in-vehicle usage…it helps us to really understand if the core received is a worthy product for our customer and evaluate the quality of the core.” - R&D Manager, Aftermarket Partner To learn more about how ReJoule technology can optimize remanufacturing check out this case study: https://lnkd.in/eY5xtDsJ #ReJoule #Rejouligans #EnergyIndependence #EVBattery #CircularEconomy #Remanufacturing #BatteryTesting
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ReJoule’s $10M DOE grant was among those cut the $8Bn in cuts announced on October 1st. Like many innovators working to make US energy independence possible, this news was a profound disappointment. But moments like this only deepen our resolve. The core mission remains because everything is still powered by batteries and all batteries will degrade. Making the circular economy more efficient is good for business. That’s why Bloomberg’s recent article, “JPMorgan Says US Needs Renewables to Meet Rising Energy Demand,” resonated so strongly with the ReJouligans. Even as public funding tightens, J.P. Morgan is doubling down on U.S. energy investment. https://lnkd.in/d9xU-2fB The crucial point here is the scale of the private sector's conviction: Jamie Dimon just announced a $1.5 trillion, 10-year initiative focused on U.S. economic security and resilience, with key focus areas including Energy Independence and battery storage. This is not philanthropy, but a 100% commercial decision. When one of the world's most respected financial institutions makes that kind of $1.5T commitment, it's a powerful validation that energy storage and renewables are not just good for the planet—they are essential for business and for America’s long-term global competitiveness. We're incredibly proud of what our team has built. We are accelerating our focus on private capital and commercial partnerships to bring our mission to scale. To our partners, team, and community: Thank you for believing in the mission. The path to a cleaner, circular energy future was never going to be easy, but let’s keep working together to achieve it. #ReJoule #ReJouligans #EnergyIndependence #EVBattery #CircularEconomy #JPMorgan #Finance #BatteryTesting
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ReJoule reposted this
The Battery Show always go by so fast, and it was an excellent week for ReJoule! Five days, four site visits, multiple meals with friends, and hundreds of conversations later, I'm going going back back to Cali Cali. This was the first big battery event post EV tax credits in the US. This also happened on the heels of billions of energy funding cancelled by the Department of Energy last week (including ReJoule's $10M award). Everybody's spirit should be doom and gloom, right? Wrong! It was more of a "let's roll up our sleeves and get to work" sentiment. 💪🏻 Turns out. Most people who are in the battery and EV industry aren't just in it to make a buck. Most people care deeply about energy and supply chain resilience. Most people are extremely passionate about America and the west staying competitive in the future of mobility and energy. Instead of doom and gloom, what I saw was people wanting to use their talents and energy towards making things better for future generations. It's people like Felix Paul Wagner and the Circunomics team and Antoni Tong from Smartville Inc., Divyanshu Purohit, Sindhu Seethamraju , Michael Coraci, and many, many more that, day in and day out, are building circular, resilient supply chains and resilient energy infrastructure. 🔋 The excitement and hope is still very much alive. EVs aren't going away. Neither are we. When I had a free afternoon, I had the privilege of visiting the Henry Ford Museum of American Innovation. This really helped put things in perspective. Less than 120 years ago, the Model T came out and revolutionized mobility and helped define modern lifestyle. Today in 2025, I'm typing this on a handheld supercomputer with all the world's information at my fingertips boarding a commercial plane across the country. The battery and automotive industry is going through some tough times ahead, but things will be alright. Things will get better because the amazing people in this industry will continue to build the future, one battery cell at a time. #thebatteryshow #batteries #batterycircularity #automotiveindustry #circulareconomy
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Excited to share that ReJoule’s CFO, Zora Chung, will be participating this friday in Pitch Global’s investor event, co-hosted by UC Berkeley Extension! This long-standing program, now in its 7th year, brings together global entrepreneurs and leading investors from VCs, CVCs, family offices, and angel networks across Silicon Valley. Zora will be sharing how ReJoule’s battery diagnostics technology is key for EV battery remanufacturing and lifecycle management, enabling a more sustainable, circular energy future. Huge thanks to Pitch Global and UC Berkeley Extension for creating opportunities that connect impactful startups with investors shaping the clean energy transition. You can get your ticket here: https://lnkd.in/gHDnBYgt #ReJoule #ReJouligans #BattScan #BatteryTesting #Cleantech #CircularEconomy #EVBatteries #BatteryReuse #Sustainability #Innovation #WomenInTech
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ReJoule reposted this
Day 2 of The Battery Show is going to be a good one. A key takeaway from Day 1 is that battery testing is an absolute requirement for everything from initial cell validation to second-life. Algorithms and AI models are great, but real measurements and real data is still needed to build and augment those models. That's where ReJoule comes in. We offer the most scalable battery test solution on the market, and we've demonstrated that test capability for battery reuse, remanufacturing, and repurposing. David Mauer and I are here today and Thursday. If you have battery testing and evaluation needs, find us at booth #4843! #theBatteryShow
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ReJoule reposted this
David Mauer and I are in Detroit for The Battery Show North America this week Tue Oct 7 to Thu Oct 9! Come find us at booth #4843 to talk about battery tech, testing, remanufacturing, and repurposing. No doubt, everyone will be talking about how the industry will adapt in this post-EV-tax-credit era. Stay tuned to find out! If you aren't in Detroit this week, check out ReJoule's new white paper Scaling Battery Remanufacturing: Challenges and Opportunities. Battery testing is one of the key cost drivers in building an efficient remanufacturing process. We break down the challenges and show how it can be done with less hassle, less time, and less money. Click the link to access 👉🏻 https://lnkd.in/gpES25FJ #batteries #TheBatteryShow #remanufacturing #repurposing #secondlife #circulareconomy
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Battery remanufacturing is one of the most effective ways to meet warranty demands, cut replacement costs, and strengthen circularity in the EV and energy storage industries. Yet, testing and validating batteries at scale remains complex and that’s exactly what our new white paper, Scaling Battery Remanufacturing: Challenges and Opportunities, explores. Discover how you can: - Scale remanufacturing for today’s and tomorrow’s needs - Reduce replacement costs and turnaround time - Strengthen sustainability through circular practices Download the white paper here: https://lnkd.in/gEJTmu_j At The Battery Show this week? Catch Steven and David at Booth #4843 Tuesday to Thursday, they’re excited to talk all things about battery remanufacturing! #ReJoule #Rejouligans #BattScan #BatteryTesting #whitepaper #EVBattery #CircularEconomy #TheBatteryShow
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Looking for fast, accurate grading of batteries? Running out of space as used battery packs accumulate? ReJoule has successfully implemented its solution with leading OEMs and aftermarket companies. Visit Steven Chung and David Mauer at Booth #4843 at The Battery Show to discover how. https://lnkd.in/gUDRFHxn #ReJoule #Rejouligans #BattScan #BatteryTesting #EVBattery #CircularEconomy #TheBatteryShow
ReJoule's Product Showcase
https://www.youtube.com/
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We are pleased to share that our team will be in DC next week. If you are based in the area and have an interest in our work, we would welcome the opportunity to connect. We will also be attending DCNY Summit during our visit and would like to extend our sincere thanks to Axel Tillmann and Kaustav Chaudhuri (KC Wisdom) from Pitch Global CVC Accelerator for the kind invitation. We look forward to engaging discussions and the chance to exchange ideas with fellow attendees. Please feel free to reach out if you would like to arrange a meeting!
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