DCB305-4 20V MAX* Lithium Ion Battery-4 Pack Buy Now DCB305-4 20V MAX* Lithium Ion Battery-4 Pack DCB305-4 20V MAX* Lithium Ion Battery-4 Pack Buy Now Add to Wishlist Additional Features Support 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed 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 Support Manual You can download the relevant product manual for this item by visiting our dedicated service website following the direct link below. * Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.