Maxwell Technologies, Inc. is a globally recognized developer and manufacturer of innovative energy storage and power delivery solutions, founded in 1965 and headquartered in San Diego, California, USA. The company was acquired by Tesla, Inc. in 2019, strengthening its presence in the electric vehicle and energy storage markets. Maxwell's core business focuses on ultracapacitors, high-voltage capacitors, and radiation-hardened microelectronic components. Its flagship ultracapacitor product lines include the BOOSTCAP and D-CELL series, known for fast charge/discharge and long operational life. The company also offers high-voltage film capacitors for power conditioning and energy storage in grid-scale applications. Maxwell's radiation-hardened microelectronics are trusted in satellites, spacecraft, and defense systems for reliable performance in extreme environments. Its products serve diverse industries such as automotive, heavy transportation, renewable energy, backup power, and wireless communications. As a pioneer in ultracapacitor technology, Maxwell holds numerous patents and maintains a leading global market share. The company is renowned for delivering cost-effective, energy-efficient solutions that meet the most demanding application requirements. Maxwell's commitment to research and development ensures continuous innovation in energy storage durability, power density, and environmental sustainability.