Features Fuel gauge indicator, displays charge remaining on battery in four stages Built in memory chip communicates the usage history with the charger Built in shock absorbers protect the cells from jobsite conditions High energy cells pack more power per cell to reduce number of cells and overall weight Large release button for easy removal from the tool Built in air vents and wall cools the battery cells evenly whilst blocking damaging debris Specifications Cell Capacity: 4.0Ah Charge Time: 60min w/DC10SB Net Weight: 370g Voltage: 12V MAX