The charger communicates with the individual cell in battery with a built in CPU and then it controls current, voltage, and temperature for both rapid and optimum charge
Therefore the battery has longer life as it can be charged in the best method and duration
Compatible with all 14.4 - 18V LXT batteries
The Makita DCF18SF chargers four batteries at a time. Charge time is dependent on the amperage of the battery; below we have listed the charge time for the Makita DC18SF:
Two - Bl1815 18v Makita 1.5amp batteries 30 minutes
Four - Bl1815 18v Makita 1.5amp batteries 60 minutes
Two - BL1830 18v Makita 3amp batteries 60 minutes
Four - BL1830 18v Makita 3amp batteries 90 minutes
Two - BL1840 18v Makita 4amp batteries 60 minutes
Four - BL1840 18v Makita 4amp batteries 180 minutes
Two - BL1850 18v Makita 5amp batteries 110 minutes
Four - BL1850 18v Makita 5amp batteries 220 minutes