ATC via Amazon offers the Masione 12-volt DeWalt Replacement Drill Battery 2-Pack, model no. DC9071, for $38.99. Coupon code "ATH3AM4Z" drops it to $28.99. With free shipping, that's the lowest total price we could find by $12. It's only compatiable with the DeWalt DW9116 charger. Deal ends May 29.