This screwdriver is a perfect companion when you take on your building project. You don't need to bother with a cord, since it runs on a rechargeable battery.
From Amazon
Makita DDF453RFE 18V Li-ion LXT 13mm Drill Driver Complete with 2 x 3.0 Ah Batteries and Charger Supplied in a Carry Case
Travis Perkins
Makita DDF453RFE 18V Lxt Drill Driver with 2 x 3.0AH Batteries