60V max vs 54V XR - Dewalt - Power Tool Forum – Tools in Action
DEWALT Flexvolt DCB546-XJ 54V/18V Akku for sale online | eBay
Lawson HIS - The latest generation of 18v XR machines have arrived from Dewalt, "Flexvolt Advantage" With the ability to run at a higher power level when using an 18v/54v Flexvolt battery