Product details:

Features:Produces 280 percent more lifetime work with 2 times more cycles, Built-in fan cools the battery to produce more lifetime work, Built-in memory chip memorizes the usage history and communicates with the charger, Charging at any time will have no effect on the battery, Self-discharge keeps battery cells active and ready for use
Brand:Makita
Manufacturer:Makita
Assembled Product Dimensions (L x W x H):18.88 x 6.62 x 9.50 Inches