Product Description Input: DC12-24V Output: 7.2V-18V MAX DC,2.5A Widely Compatible: Compatible with Makita 14.4V Battery : BL1415, BL1440, BL1430 Compatible with Makita 18V Battery : BL1860, BL1850, BL1840, BL1830, BL1820, BL1815, BL1820B, BL1830B Comptatible with Makita 14.4V-18V Battery Charger : DC18SE, DC18RC, DC18RA, DC18RD, DC18SD, DC18SF Advantages 1.Widely Compatible 2.Convenient: Enables batteries to be charged while driving to work or on a job site 3.Fast charger: Charges the most batteries in 1 hour or less, minimizing downtime 4.LED Indicator: A LED indicator to display charging status, and battery temperature. 5.Intelligent Protection System 6.Safe Reliable:Automatic shut-off protects excessive discharge of vehicle's battery .... Unique Protections: 1. No charging to a defective battery. 2. Automatically Cut off when Short-circuit. 3. Automatically Stop charging when charger faulty detected. 4. Automatically stop charging when over-charging. 5.stop charging when overheat.