The bosch psr 14 li 2 drill driver runs on a 14 v 13 ah lithium ion battery two supplied and boasts two gear speeds with electronic control the keyless chuck with auto lock means you can change accessories quickly and easily while the softgrip handle makes the bosch psr 14 li 2 comfortable to use the psr 14 li is ready to go in just 3 hours and perfect for all sorts of drilling and screwdriving work around the home