Driving an electric car might feel cool and environmentally friendly, but there’s an inherent worry involved: Cars that use only battery power have a limited range before they have to be charged.

To deal with this so-called “range anxiety,” auto makers have been developing mobile applications to ease consumers’ fears that their battery-powered car won’t have enough juice. Over a recent weekend, I decided to try one out. General Motors Co. let me borrow their new Chevy Volt and a Motroloa touch-screen phone using Android software to see for myself how their OnStar app interacts with the car.

The app lets you lets you check the charging status and initiate charging, and it tells you how many miles the car can travel before it runs out of battery power and gasoline. It also can unlock doors, check tire pressure and cool or heat the cabin from anywhere as long as your phone is getting service.

GM says the app can help consumers manage their battery usage. For instance, by using the app to pre-start the car and warm the cabin while the vehicle is still docked at a charging station, the driver won’t have to drain any of the battery’s power to do that while on the road.
 
 
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Made in America: Electric Charging System

It comes in a little box, it's not heavy at all, it installs in an hour or so... that's right it's your very own electric charging dock for your electric vehicle! Now you can go from discharged to full charge in three hours or less!

 
 

Created with Admarket's flickrSLiDR.
A great time was had by all at the exclusive Courtesy Chevrolet Volt preview party the the W Scottsdale on February 9th, 2011. A lot of interested buyers in the new Chevrolet Volt! You can put yours on order for just a $500 deposit. Click here to place your deposit and you could be driving the new Chevy Volt soon!
 
 
There's a lot of controversy comparing the Nissan LEAF to the Chevy Volt, but it all has to do with whether or not the Volt is truly an electric car, or whether it's a hybrid. But let's set their powertrains aside for the moment. John McElroy of Autoline got a chance to test drive both cars, back to back, and here's his impression of what the they're like.

Click here to order your Volt with just a $500 deposit.

 
 
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Engineers of the four-seat Chevrolet Volt electric car often refer to its 435-pound battery pack as the fifth passenger. Given the care taken to keep the pack at just the right temperature in all temperature conditions, there is a lot of truth to that.

The Volt’s ability to operate gasoline-free on a day-to-day basis and carry an eight-year/100,000-mile battery warranty is due to active thermal management of the advanced lithium ion battery pack.

“Every battery has a temperature sweet spot where it provides the optimal blend of power output, energy capacity and long life and we keep the Volt right on that target,” said Bill Wallace, General Motors director of Global Battery Systems.  Batteries that are too cold are reluctant to release electrons while batteries that run too hot can see a significantly shorter life.

The Volt’s T-shaped battery pack consists of 288 individual cells arranged into nine modules. Plastic frames hold pairs of lithium-ion cells that sandwich an aluminum cooling fin. The design and construction of that aluminum plate is critical to ensuring an even temperature distribution with no hot or cool spots across the flat, rectangular cell. The battery pack has its own cooling circuit that is similar to, but independent from, the engine cooling system.


 
 
What is the Chevrolet Volt exactly? This video explains how the Volt is different from hybrid, pure electric and gas-powered cars on the road.
 
 
Chevy Volt Commercial: Socket
 
 
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The Volt has won nearly every major award offered and stirred up tons of interest, but one criticism persists: The price is way too high.

Chevy cars -- including the Volt -- have always been intended for a mainstream market, but at $41,000, it seems GM is asking buyers to pay as they might for a Mercedes-Benz or BMW.


The next-generation Volt will almost certainly cost less, GM spokesman Rob Peterson said. And the same changes that make it cheaper should make it better, too.

So what's the sweet spot for the Volt, price wise? A $7,500 federal tax credit takes the cost down to around $30,000. That seems like a more viable price, but tax credits wont last forever.