Using the DeWalt DCB2460C starter kit is easy. First, insert the battery into your 20V MAX* tool. Make sure it clicks into place securely. The LED indicator on the battery will show you the state - of - charge. When using the DCE555B cut - out tool, hold it firmly and start your drywall work. To charge the batteries, just connect them to the DCB1104 charger. As for maintenance, keep the batteries and tools clean. Wipe them down after each use. Store the batteries in a cool, dry place. Don't expose them to extreme temperatures. Also, avoid overcharging the batteries to extend their lifespan. With proper use and care, this DeWalt kit will serve you well on many jobs.