DW9091 DeWalt® 14.4V Battery Rebuild Service – MTO Battery
Amazon.com : DeWalt DC9091, DC983, and DW055 Replacement Battery : Cordless Tool Battery Packs : Tools & Home Improvement
Amazon.com: Synergy Digital Power Tool Battery, Compatible with DeWalt DW990K-2 Power Tool, (Li-ion, 14.4V, 3000mAh) Ultra High Capacity, Replacement for DeWalt DE9141 Battery : Tools & Home Improvement