Maxwell Technologies, is a global leader with their product development teams all over the world, operating for more than 45 years. They deliver products and solutions in the fields of power supply and energy storage systems for automotive, heavy rail transportation systems, renewable energy systems, backup power, wireless communications, industrial and consumer electronics, as well as micro-electronic components and systems enhanced against radiation for satellites and space vehicles. Maxwell's products are designed to provide error-free performance even for the most challengeable applications.

Maxwell R&D center is in San Diego, California. Their core product Ultracapacitors are used in power supply and energy storage systems for automotive, heavy rail transportation systems, renewable energy, backup power, wireless communications, industrial and consumer electronics by means of their features such as high power density, long operating lifetime, capabilities of fast charging and discharging and operating at high temperatures.