The F-150 Lightning, Ford’s electric version of its iconic pickup truck, loses about a quarter of its driving range when it’s fully loaded with cargo, according to a test by AAA.

As reported by the Western Journal, AAA did a comprehensive test on the truck’s battery by accounting for towing and cargo capacity factors.

With 1,400 pounds of sandbags, the truck’s range dropped from 278 miles to 210 miles, or a 24.5% decrease.