Looking for more power and longer runtime out of your HART 20V tools? Then this 20V 4.0Ah Battery 2-Pack is for you. Battery provides 4X the runtime* and features an on-board fuel gauge, so you always know how much charge you've got left. Plus, it's compatible with all HART 20V power tools. 20V 3 AMP Fast Charger will charge any HART 20V battery at 3x the rate of the standard 0.5 AMP charger. 20V Brushless 1/2" Drill/Driver is the perfect tool for all of your drilling and driving needs. Drill is equipped with a brushless motor and 1/2" chuck, offering a large variety of accessories for both light and heavy-duty applications. What's more, the brushless motor is 30% stronger* and 20% faster* at up to 1,800 RPM.