Power up your Black and Decker tools with this versatile 20V to 18V adapter and battery. The lithium-ion technology ensures long-lasting power for your power tools, while the 4 Ah battery capacity provides reliable and consistent power. The sleek black design of the battery adapter makes it a stylish addition to your toolkit. This battery adapter is compatible with a variety of Black and Decker tools, and its compact size of 2.6in. height, 4.09in. width, and 6.69in. length makes it easy to carry around. The 18V voltage ensures your power tools are running at their best, and the 0.37lbs. weight won't weigh you down. Get the job done with ease and efficiency with this Black and Decker HPA1820 20V to 18V Adapter Battery. This Black and Decker HPA1820 20V to 18V Adapter Battery is the perfect solution for power tool users who need an extra battery. The lithium-ion (Li-Ion) battery technology ensures long-lasting performance, while the 4 Ah battery capacity provides enough power to get the job done. The 18 V voltage adds an extra boost of power, making it easier to use power tools for extended periods. This battery adapter is designed for the BLACK+DECKER brand and comes in a sleek black color. Its compact size of 2.6in. height, 6.69in. length, and 4.09in. width make it easy to carry around, and its lightweight of only 0.37lbs. ensures that you can use it for extended periods without getting fatigued. This item falls under the Home Garden, Tools Workshop Equipment, Power Tool Air Tool Accessories, and Power Tool Batteries categories. Shipped with USPS Ground Advantage also international shipping as well.