Using your Makita BL1820B battery is easy. Simply insert it into your 18V LXT® Makita tool. Before using it for the first time, make sure it's fully charged. The charge level indicator on the battery will show you how much power is left. When it's time to recharge, use a rapid charger and it'll take around 24 minutes. Keep in mind, don't expose the battery to extreme temperatures as it can affect its performance. Also, avoid dropping or damaging the battery. To maintain the battery's lifespan, charge it regularly and don't let it sit discharged for long periods. If you're not using the battery for a while, store it in a cool, dry place.