General description The Makita BL1840B 18V Li-ion Battery is a highly regarded battery in the Makita range, known for its lightweight and shock-absorbing design. It offers an impressive power-to-weight ratio and is equipped with advanced features such as foam cell technology and an LED indicator for battery status monitoring. Technical specifications Voltage: 18V Capacity: 4.0Ah Weight: Lightweight design Battery type: Li-ion Other information LED indicator: Displays battery status Charging status: 1st LED flashes when charging is needed Power levels: Four LEDs indicate charge levels (1LED=0-25%, 2LED=25-50%, 3LED=50-75%, 4LED=75-100%) Durability: Will not puncture and remains cool even under heavy use Compatibility: Suitable for a comprehensive range of professional Lithium-ion tools from Makita