Thursday, July 15, 2010

GM: Chevy Volt Battery Warranty is eight years/100k miles



The Chevy Volt is finally coming together. GM just went public with the details surrounding its battery warranty and it’s on the same level as the Prius’s. The auto maker will cover the Volt’s LG Chem lithium-manganese pack for eight years or 100,000 miles. This comes after extensive testing over a three-year period in which testers logged over 1 million miles of driving and 4 million hours on the battery packs. Needless to say that GM tested the entire system thoroughly.

GM-Volt posted some of the Volt’s key features that actually validate a lot of the questions I had during my Volt mule test drive last year.

Thermal Management: the intrinsic thermal management system allows teh pack and car to operate flawlessly from -13 degrees Fahrenheit (-25 C) and as high as 122 degrees Fahrenheit (+50 C). In cold weather the cells are warmed by the generator and in cold weather they are chilled.
Diagnostics: there are more than 500 diagnostic tests on the pack that run 10 times per second. 85 percent ensure the pack is operating safely, 15 percent ensure durability.
Cell design: the LG chemistry ensures high power and long life.
Energy Management: by not fully charging or discharging the battery ensures the longest possible life.

It’s good to see GM backing the Volt’s battery system with a long warranty. Batteries degrade over time and since the Volt’s powertrain is directly powered from the battery unlike in a traditional hybrid where they simply assist, owners should not have to worry about their life for a while.

Techtyphooon

Apollo 16 site photographed from orbit





I love seeing the shots that NASA has been releasing from the Lunar Reconnaissance Orbiter! The latest is from the Apollo 16 site, and they really timed this one right. The LRO was passing over the site exactly at noon (local time of course) so there’s a minimum amount of shadowing, and a maximum amount of contrast.

The resolution on the picture is truly amazing, you can see where the lunar module landed, where they parked the LRV, and even trails where the astronauts walked across the surface. There’s even a mark leading to where the astronauts conducted moonquake experiments by setting off explosives! This picture is much cleaner then the previous shot, which showed the Apollo 14 site, but was taken at a different time of day and had significantly more shadowing.

Techtyphooon

Video: The first Chevy Volt commercial advertises silence

Video: The first Chevy Volt commercial advertises silence

Chevrolet apparently has started advertising the Chevy Volt but you won’t see anything about batteries, expected range, the price or any of the Volt’s novel traits — only silence. Click through for the ad spot.

Techtyphooon