General description This twin pack of Genuine Makita 18V LXT Star Batteries includes 1 x BL1850 5.0Ah and 1 x BL1830 3.0Ah batteries. Designed for optimal performance, these lithium-ion batteries feature advanced technology that enhances their lifespan and efficiency. Technical specifications Battery types: 1 x BL1850 (5.0Ah), 1 x BL1830 (3.0Ah) Voltage: 18V Self-discharge rate: 5x lower than standard batteries Compatibility and accessories Compatible with all Makita li-ion LXT 18V machines Usage Charging at any time will not affect battery performance Built-in Memory Chip communicates with the charger to maximize battery life Ideal for high-drain applications requiring maximum battery power Other information Built-in shock absorbing features protect the battery Sixteen firm holding contact terminals reduce the risk of power loss in high vibration environments STAR Protection Computer Controls monitor conditions to protect against overloading, over-discharging, and overheating