Hello,

We noticed you're browsing in private or incognito mode.

To continue reading this article, please exit incognito mode or log in.

Not an Insider? Subscribe now for unlimited access to online articles.

Kevin Bullis

A View from Kevin Bullis

GM Backs Volt Battery with Eight-Year Warranty

Lifetime is key because of the high cost of battery packs.

  • July 14, 2010

When a battery company unveils new technology and brags about its long lifetime, the best industry analysts aren’t necessarily impressed by charts showing voltage-current curves over hundreds or thousands of discharge cycles. “Show me the warranty,” they say. That’s a good indication of how long the company really thinks the battery will last.

GM executives have said they expect the battery for its upcoming Volt electric vehicle (actually, a type of plug-in hybrid) will last the life of the car. Now GM has backed up those claims (sort of) by announcing a 8-year, 100,000 mile battery warranty. That’s not quite as long as I’d like a car to last–and not as good as a 10-year warranty some had expected–but it’s a good amount of time compared to the 3-year warranty offered by some other manufacturers. Nissan, which is coming out with the electric Leaf this year, hasn’t yet announced warranty details.

The battery warranty is key, since replacing a full battery pack could cost more than $10,000 by some estimates.

Cut off? Read unlimited articles today.

Become an Insider
Already an Insider? Log in.
More from Sustainable Energy

Can we sustainably provide food, water, and energy to a growing population during a climate crisis?

Want more award-winning journalism? Subscribe to Insider Basic.
  • Insider Basic {! insider.prices.basic !}*

    {! insider.display.menuOptionsLabel !}

    Six issues of our award winning print magazine, unlimited online access plus The Download with the top tech stories delivered daily to your inbox.

    See details+

    Print Magazine (6 bi-monthly issues)

    Unlimited online access including all articles, multimedia, and more

    The Download newsletter with top tech stories delivered daily to your inbox

/3
You've read of three free articles this month. for unlimited online access. You've read of three free articles this month. for unlimited online access. This is your last free article this month. for unlimited online access. You've read all your free articles this month. for unlimited online access. You've read of three free articles this month. for more, or for unlimited online access. for two more free articles, or for unlimited online access.