Synergy Digital Power Tool Battery, Compatible with DeWalt DC845KA Power Tool, (Ni-MH, 12V, 3000mAh) Ultra High Capacity, Replacement for DeWalt DC9071, DE9037, DE9074, DE9075, DE9501, DW9071 Battery - Walmart.com
2X Battery works with DeWalt 397745-01 DE9074 DC9071 DE9037 12V 12 Volt 2Ah | eBay