Let’s transform transportation.

The era of gas-powered vehicles will soon be fading in the rearview. The future is electric. Help drive the change with technology-leading lithium-ion battery packs.

We’re a Southern California battery technology company dedicated to enabling large-scale sustainable transportation with energy dense battery packs that deliver the range and charge times you need to compete.

Our unmatched team of elite engineers have made crucial breakthroughs in energy density, battery management, and cost-effective manufacturing. With our batteries on board, your EVs will provide the viable and even enviable alternative to traditional vehicles people have been waiting for – in terms of both price and performance.

Romeo Power focuses on 2 key markets in mobility energy technology:

  1. NA Commercial Vehicles (Class 4-8: trucks and buses) through the parent company Romeo Systems, Inc. of which BorgWarner is a 20% shareholder.
  2. European High-Performance vehicles; as well as, light, medium, and heavy duty commercial vehicles through a Joint Venture with BorgWarner, of which Romeo Systems, Inc. owns 40%.

BorgWarner Partnership

With our partner BorgWarner, Romeo Power has the largest battery pack footprint in the world.
BorgWarner Inc. is engaged in providing technology solutions for combustion, hybrid and electric vehicles. The Company’s products are manufactured and sold across the world, primarily to original equipment manufacturers (OEMs) of light vehicles (passenger cars, sport-utility vehicles (SUVs), vans and light trucks). Its products are also sold to other OEMs of commercial vehicles (medium-duty trucks, heavy-duty trucks and buses) and off-highway vehicles (agricultural and construction machinery and marine applications).


Michael Patterson


Mr. Patterson is an entrepreneur at heart. He started his career building companies in the mobile market, solving complex problems for businesses, mobile carriers, and financial institutions. All three companies he created have been acquired, the last one by AMEX. He is now taking that experience and applying it to advancing energy technology to end energy poverty. In 2015, Patterson along with leading innovators from Tesla, SpaceX, Amazon, and Samsung, started Romeo Power. Engineers with deep tribal knowledge for the design, development, and deployment of the most powerful and sophisticated battery packs on the planet were recruited from the start.

Lionel Selwood, Jr.

Chief Executive Officer

Lionel is an accomplished Product Management Leader with expertise in Operations Management, Financial Management (Profit & Loss, Balance Sheet, Cash Flow), Lean Six Sigma, Supplier Development, Strategic Sourcing and Product Quality Management. His experience spans General Electric where he graduated from the highly regarded Operations Management Leadership Program (OMLP) and owned Profit & Loss Responsibility as Manufacturing Shop Operations Manager of a High Volume Production Facility and three Fast Moving Innovative Start Ups (SpaceX, Faraday Future & Romeo Power) where he has held various Roles including Director of Procurement, Vice President of Engineering and Chief Operating Officer. Lionel holds a B.Sc. in Mechanical Engineering from Syracuse University and MPS in Supply Chain Management from The Penn State University.

AK Srouji, PhD

Chief Technology Officer

Dr. Srouji directs all technical and technological developments, including IP strategy, roadmaps, and future products, internally and in collaboration with strategic partners. Before being promoted to CTO, he was responsible for R&D and Cell Technology at Romeo. Prior to joining Romeo, he was developing advanced physico-chemical battery models at Robert Bosch’s Research & Technology Center in Silicon Valley. He also worked on novel battery component development, spanning from next-gen lithium ion to all solid-state batteries. Throughout his energy storage technology career he has successfully brought to market multiple programs funded by the US Department of Energy. He holds an MS degree in Mechanical Engineering, and a PhD in Energy & Mineral Engineering with a focus on electrochemistry from The Pennsylvania State University.

Lauren Webb

Chief Financial Officer

Lauren Webb has over a dozen years of experience in finance and operations for early stage companies, including InAuth, Inc. Prior to joining Romeo she was Vice President of business services company Apollo Services, LLC. She started her career at the U.S. Department of Justice and spent ten years with The Ashcroft Group, a venture investment and consulting firm based in Washington, DC.

Criswell Choi

Chief Operations Officer

Criswell Choi has over 17 years of experience in operations, engineering, and business management within the electronics and semiconductor sectors. Prior to Romeo his experience includes managing operations at both early stage startups as well as large scale companies such as Apple and SanDisk. He holds a B.S. in Electrical Engineering from MIT and 12 patents.

4380 Ayers Ave.
Vernon, CA 90058
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Romeo Power North America HQ

4380 Ayers Ave, Vernon, CA 90058

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