Using the DeWalt DCD798D1 is a breeze. First, charge the DCB203 20V MAX* 2.0Ah battery with the DCB107 charger. Once it's charged, insert the battery into the drill. For concrete and masonry work, switch to hammer mode. The drill's compact size lets you reach tight spots easily. When using the drill mode, the 1/2 in. ratcheting chuck will hold the bit firmly. Don't forget to use the LED work light when working in dim areas. As for maintenance, after each use, wipe the drill clean with a dry cloth. Keep the chuck clean and lubricated occasionally. Store the drill in the provided kit bag and in a dry place. Make sure to remove the battery when not in use for a long time. This way, your drill will last a long time and keep performing well.