Makita LXT 18V Lithium-Ion 5.0 Ah Batteries 2-Pack exceptional performance with up to 65% more run-time per charge d to Makita BL1830 Batteries. These batteries feature an impact-resistant outer case and a shock-absorbent inner liner to protect the internal electronics from tough drops. Designed for high-vibration applications, the sixteen contact terminals ensure a constant connection with your tool, preventing power loss or fluctuations. The 5.0 Ah batteries are among the fastest charging in their category, fully charging in just 45 minutes, and they resist self-discharging to remain ready for use even after long storage periods. Equipped with Makita Star Protection Computer Controls, these batteries prevent overload and overheating while delivering consistent power performance even in extreme temperatures as low as -4°F (-20°C). They are compatible only with Star Protection tools, identifiable by the Star Symbol or the Yellow Battery Receiver on the tool. Model Number: BL1850B-2