Batteries that power a popular brand of e-bike pose a fire hazard that can cause serious injury or death and shouldn't be used, the Consumer Product Safety Commission (CPSC) said in a notice Monday.

The commission is warning customers to immediately stop using lithium-ion batteries that power e-bikes made by Seattle, Washington-based Rad Power Bikes. The batteries can ignite and explode, causing serious injury or death, the agency warned.

Rad Power Bikes said it disagreed with the agency's warning.

"Rad Power Bikes firmly stands behind our batteries and our reputation as leaders in the e-bike industry, and strongly disagrees with the CPSC's characterization of certain Rad batteries as defective or unsafe," a Rad spokesperson said in a statement to CBS News.

The batteries that pose a

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