BTC-DWC540PW battery (2000 mAh 12 V) - BatteryUpgrade
Amazon.com: Synergy Digital Power Tool Battery, Compatible with DeWalt DC743KB Power Tool, (Ni-MH, 14.4V, 1500mAh) Ultra High Capacity, Replacement for DeWalt DC9091 Battery : Tools & Home Improvement
ERJER 2Pack 3.6Ah for Dewalt 12V Battery XRP DW9071 DW9072 DC9071 DE9037 DE9071 DE9072 DE9074 DE9075, Premium Replacement Ni-MH Battery for Dewalt 12 Volt Cordless Power Tools - Amazon.com