MAKITA DC18RD 2 Port Battery Charger is part of the world's largest cordless tool lineup powered by the Makita 18 Volt Lithium-Ion slide-style battery. This dual port rapid optimum charger is designed to charge two batteries simultaneously, maximizing charging efficiency so your batteries spend more time powering your tools and less time on the charger. Featuring a built-in fan, it cools the batteries by forcing air through their vents during charging, which speeds up the process. The charger also communicates with the battery’s built-in chip to optimize battery life by actively managing current, voltage, and temperature. This results in impressive charge times, such as charging two 18 Volt compact Lithium-Ion 2.0 Ah batteries in just 25 minutes, or two 5.0 Ah batteries in 45 minutes. Model Number: