GENERAL DESCRIPTION The Makita BL1850 is a 5.0Ah 18V lithium-ion battery designed for optimal performance. This five-pack of batteries outperforms previous models like the BL1830 and BL1840. It features a charging system that provides 280% total lifetime work with double the cycles. The battery has a low self-discharge rate, keeping it ready for use even after long storage periods. It includes built-in shock absorption and sixteen contact terminals to minimize power loss in high-vibration environments. The battery's Memory Chip communicates with the charger to maximize its lifespan using three active controls: Current, Voltage, and Thermal. It is compatible with all Makita LXT 18V machines. Makita's STAR Protection Computer Controls enhance battery and tool communication to prevent overload, over-discharge, and overheating, ensuring durability and performance. TECHNICAL SPECIFICATIONS Type: Lithium-Ion Voltage: 18V Capacity: 5.0Ah Charge Time: 45 minutes Compatibility: All Makita LXT