Replace DEWALT 18V 6.0 DCB180 DCB181 hand drill electric tool lithium batteryBattery use and maintenance. 1. Charge the new battery for a while after receiving it. After a while, you will see that the power has increased. It means that it can be charged. Then remove the power supply and use the power to about 10 percent -20 percent . Repeat 3-5 times to fully charge it, and then use it normally. 2. Do not use the power to 0 percent at ordinary times, otherwise it is easy to damage the battery. 3. Please charge the battery in time after it is exhausted if it is not charged for a long time, it may cause low voltage damage to the battery. 4. If you often connect the charger for use, remember to turn off the power at night. Please use the battery regularly. Generally, it can be used once every 10 days. 5. If the battery is not used for a long time, it needs to be charged to more than 70 percent for storage. Keep the battery charged during storage. 6. Please use the original charger or a well-known brand charger. Poor quality chargers will affect the normal charging of the battery. 7. Clean the fan dust regularly to increase the heat dissipation effect and reduce power consumption, which can extend the battery life.