Chevrolet Volt battery pack – Click above for high-res image gallery
During a media briefing at its Brownstown Township, MI battery plant this afternoon, General Motors Vice Chairman Tom Stephens announced that the lithium ion battery pack for the 2011 Chevrolet Volt would be warranted for eight years or 100,000 miles. Since the beginning of the program, it has been General Motors' intention to develop the battery pack to last for the life of the vehicle.

Despite the fact that the Volt is considered an electric car by GM, the presence of an on-board gas engine for range-extending means that the EPA and California Air Resources Board consider the battery to be part of the car's emissions control system. As a result, it is subject to the same regulations as parts like a catalytic converter, and therefore, it must have the eight-year warranty.

GM has released some additional specifications on the battery pack. In its final production form, 95 percent of the components were designed and developed in-house by GM, it weighs in at 400 pounds and has an output of 110 kilowatts. Internally, the water-cooled pack consists of 288 LG Chem lithium polymer cells. Over the next few months, GM will be ramping up the production rate at Brownstown in preparation for the start of Volt production this Fall.


  • A battery engineer checks a Chevrolet Volt battery at the General Motors Global Battery Systems Lab in Warren, Michigan Wednesday, June 30, 2010. The Chevrolet Volt will offer customers an unprecedented standard 8 year/100,000 mile warranty on its lithium-ion battery. GM engineers have completed more than 1 million miles and 4 million hours of validation battery testing since 2007. Each Volt battery pack has nine modules and 288 cells. GM designed and engineered 99 percent of the 155 components in each battery. (Photo by John F. Martin for Chevrolet)
  • A Chevrolet Volt battery at the General Motors Global Battery Systems Lab in Warren, Michigan Wednesday, June 30, 2010. The Chevrolet Volt will offer customers an unprecedented standard 8 year/100,000 mile warranty on its lithium-ion battery. GM engineers have completed more than 1 million miles and 4 million hours of validation battery testing since 2007. Each Volt battery pack has nine modules and 288 cells. GM designed and engineered 99 percent of the 155 components in each battery. (Photo by John F. Martin for Chevrolet)
  • The first Chevrolet Volt battery built at the General Motors Brownstown Battery plant undergoes a dimensional quality check in Brownstown Township, Michigan Tuesday, December 22, 2009. The Brownstown facility is the first lithium ion battery pack manufacturing plant in the U.S. operated by a major automaker. (Photo by Jeffrey Sauger for General Motors)
  • The first Chevrolet Volt battery moves through the assembly process at the General Motors Brownstown Battery plant in Brownstown Township, Michigan Tuesday, December 22, 2009. The Brownstown facility is the first lithium-ion battery pack manufacturing plant in the U.S. operated by a major automaker. (Photo by Jeffrey Sauger for General Motors)
  • The first Chevrolet Volt battery makes its way through the General Motors Brownstown Battery plant on an automated guided cart (AGC) in Brownstown Township, Michigan Tuesday, December 22, 2009. The Brownstown facility is the first lithium ion battery pack manufacturing plant in the U.S. operated by a major automaker. (Photo by Jeffrey Sauger for General Motors)


I'm reporting this comment as:

Reported comments and users are reviewed by Autoblog staff 24 hours a day, seven days a week to determine whether they violate Community Guideline. Accounts are penalized for Community Guidelines violations and serious or repeated violations can lead to account termination.


    • 1 Second Ago
  • Share This Photo X