Feature: 1. Perfectly Compatible: The battery is compatible with original cordless power tools and chargers, fits for BL1850, BL1840, BL1830, BL1815, BL1835, BL1845, 194205 3, LXT 400 2. Power Monitoring: The battery power displayed by indicator light, users can monitor the comprehensive percentage of battery power 3. Low Temperature Stable Operation: The battery can provide stable power and runtime even in extreme temperature ‑4°F and ‑20°C 4. Safe Operation: The battery has over discharge, overload and short circuit protection, which is safe and reliable to use 5. Flame Retardant ABS and PC Made: The battery case is made of ABS and PC material, flame retardant and high temperature resistant Specification: Item Type: Replacement Lithium Ion Battery Material: ABS, PC Battery Type: Lithium ion battery Battery Model: 18650. Package List: 1 x Replacement Lithium Ion Battery1 x Manual Note: For the first use, it needs to be fully discharged and then fully charged.