Maxwell Technologies, Inc.

Ulf Carl Mikael Setterberg

Robert Shaw Lynds

Jeff Brakley

Christopher James

Jeremy Michael Cowperthwaite

Rong Yan

Liesel Mathew Chiriyankandath

Magnus Lindbäck

In one aspect, the invention comprises an apparatus for balancing cells in a series string of modules having cells. The apparatus comprises a processing system and a communication circuit. The processing circuit is configured to receive an average cell voltage value from each module. The processing circuit is further configured to determine an overall average cell voltage for all the cells. The processing circuit is also configured to cause each the modules to determine a relative capacitance for each of its cells and cause each of the modules to balance its cells based on the respective relative capacitances. The communication circuit is configured to receive the average cell voltage value from the modules.

Systems and methods for capacitor module balancing and maintenance

This disclosure provides systems, methods and apparatus for a engine start system. In one aspect, the engine start system includes: a booster battery selectively connected in parallel with the primary batteries of the engine. The booster battery is disconnected when the battery voltage of the primary batteries is below a first target voltage. The booster battery is connected when the battery voltage of the primary batteries is at or above the second target voltage, or in response to an external input.

System and methods for improved starting of combustion engines

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San Diego, CA, United States of America

Ulf Carl Mikael Setterberg