22 November 2018: Guy Clum, the founder and former owner of lead battery maker Power Sonic, passed away on November 12 at the age of 86.
“It is with a heavy heart that I announce that we have lost our dear friend Guy Clum,” said Jim Mannebach, chief executive of Power Sonic. “In life, he was a pioneering leader in our industry inspiring all he touched with his insight, compassion and determination, always delivered in his own humble soft-spoken way.
“He will be dearly missed.”
Clum built up several businesses throughout his life, including a lead factory, before starting up a battery manufacturing firm called Faradene Battery.
He went on to found Power Sonic in 1970, and the California, US-based firm now sells its sealed lead acid batteries and lithium iron phosphate batteries as well as a ‘Powersport’ range in more than 70 countries.
He was a well-known philanthropist. Just two months ago he, with the San Diego Foundation, donated $13.8 million to local charities for early childhood education.
Clum was a keen fisherman and tennis player, and graduated from Stanford University School of Business with a masters in business administration and management.
As a businessman, Clum was much loved by those that worked with and for him. “Guy respected everybody regardless of their position,” said Shaw Pourhashemi, project engineer at Power Sonic.
Power Sonic has come a long way in its 48-year history. In November last year it was acquired by investment management group Blackbird in a signal that the firm was continuing to expand its work on lithium batteries.
Clum stepped down at the time of the acquisition.
“Guy was always supportive, a source of great history and information, and a wonderful conversationalist given his very dry sense of humour,” said Brian Crowe, president and co-owner of Power Sonic.
“He will be sorely missed.”