CASE STUDY Maxwell Technologies, Inc. Maxwell Technologies SA 9244 Balboa Avenue, San Diego, CA 92123 CH1728 Rossens United States Switzerland Phone: +1­858­503­3300 Phone: +41 (0) 26 411 85 00 Fax: +1­858­503­3301 Fax: +41 (0) 26 411 85 05 © Maxwell Technologies, Inc. | www.maxwell.com | info@maxwell.com | Ultracapacitors Help P21 To Provide Fuel Cell­ Based Backup Power For Telecoms Introduction P21 develops, produces, and sells fuel cell based backup systems. They are used in base station networks where conventional batteries often operate at their technical limits. With its patented, hydrogen­powered PEM fuel cells, P21 is the leading supplier of fuel cell power for use in the telecommunications industry: as backup solutions, primary supply in combination with renewa

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