【True Universal Compatibility】Professional-grade battery charger designed for ALL major power tool brands including Dewalt 20V, Milwaukee M18, Makita 18V, Ryobi 18V, Bosch 18V, and other Li-ion batteries within 18V-21V range. Perfect solution for multi-brand tool users. 【Smart Charging Technology】Features advanced smart IC chip protection with multiple safety mechanisms including short-circuit prevention, over-voltage protection, and over-charge protection. LED indicator clearly displays charging status (red when charging, solid green when fully charged). 【Premium Build Quality】Constructed with durable ABS fireproof material and equipped with a 3.3ft reinforced charging cable. The secure case design ensures stable connection and optimal heat dissipation during charging. 【Dual Voltage Support】Universal 100-240V input voltage makes it perfect for both home and professional use worldwide. Delivers 21V output with 1A charging current for safe, efficient power delivery. ⚠️【Warm Tips】 This charger is recommended for professionals. 2 PCS Universal 1Amp Power Tool Battery Charger Compatible with Dewalt 20, Milwaukee M18, Makita 18V Lithium-Ion Batteries - Multi-Brand Fast Charger for Cordless Drills, Saws, Flashlights & Power Tools