This Makita drill driver uses chucks with a hex and keyless system. It runs on a rechargeable battery, so it's completely cordless.
From Amazon
Makita DF033DWAE 12V Max Li-Ion CXT Drill Driver Complete with 2 x 2.0 Ah Li-Ion Batteries and Charger Supplied in A Carry Case
Powertool World
Makita DF033DWAE 12v Max CXT 1/4" Cordless Drill Driver Inc 2x 2.0Ah Batts
ITS
Makita DF033DWAE 12V CXT Drill Driver with 2x 2.0Ah Batteries, Charger & Case