BL4018-XJ 18V 4.0Ah Battery Pack Buy Now BL4018-XJ 18V 4.0Ah Battery Pack Buy Now 18V 4.0Ah Battery Pack Add to Wishlist Features Cordless Power & convenience. Part of the 18V Lithium-Ion System. Includes (1) 18V 4.0Ah Battery Pack Support 2 Year Warranty We’re confident of the quality of our products and we’ll repair, without charge, any defects due to faulty materials or workmanship within the specified warranty. Learn More Service We take extensive measures to ensure all our products are made to the very highest standards and meet all relevant industry regulations. Learn More Manuals BLACK+DECKER® manuals are available to help put your products in operation.