Makita DC18RE 10.8v/12v Max CXT - 18v LXT Li-Ion Dual Port Twin Charger The DC18RE has a built-in fan to cool the battery by forcing air through the battery\'s air vents during the charging process for faster charging. The charger communicates with the battery\'s built-in chip throughout the charging process to optimize battery life by actively controlling current, voltage, and temperature. In addition, the DC18RE is engineered to optimize battery life by actively controlling current, voltage, and temperature during charging.  The DC18RE is a sequential charger and will charge one battery at a time. FEATURES Capable of charging 12v MAX CXT slide batterys and 14.4v / 18v LXT slide battery\'s Forced air cooling system Wall mountable for charging Charging status indicator Charges in order that the battery is inserted The DC18RE Will charge 18v LXT slide battery\'s in the below times: 3.0Ah - 22mins 4.0Ah - 36mins 5.0Ah - 45 mins 6.0Ah - 55 mins The DC18RE Will charge 12v Max CXT slide battery\'s in the below times: 1.5Ah - 22mins 2.0Ah - 30mins 4.0Ah - 60 mins SPECIFICATION Battery Range: 10.8 - 18 v Battery Type: Li-ion