Ram's electric version of its 1500 pickup truck won't deliver the long-promised 500 miles of range. The information was first reported on Jan. 15 by Mopar Insiders and has since been confirmed to Motor Authority by a Ram spokesperson.

The truck maker confirmed it's canceling the Ram 1500 REV's larger 229.0-kWh battery, which was said to provide 500 miles of range.

There are big changes afoot with Ram’s big trucks. Late last year the automaker decided to delay the introduction of