FEATURES 33% Improved Run Time & Optimised Power. Fuel Gauge for Maximum Flexibility. Same Weight as 3.0Ah. No Memory Effect. Virtually No Self-Discharge. SPECIFICATIONS Battery Chemistry: Li-Ion. Battery Power: 4.0 Ah. Battery Technology: XR. Brand: DeWalt. Carry Case/Bag Included: No. Manufacturer Guarantee: 1 Year Guarantee. Model No: DCB182-XJ. Pack Size: 1. Pieces in Pack/Case: 1. Power Voltage Supply: 18 V. Product Type: Battery.