Amazon.com: Synergy Digital Power Tool Battery, Compatible with DeWalt DW999 Power Tool, (Ni-MH, 18V, 1500mAh) Ultra High Capacity, Replacement for DeWalt DC9096, DE9039, DE9095, DE9096, DE9503, DW9095 Battery : Tools & Home
Amazon.com: Synergy Digital Power Tool Battery, Compatible with DeWalt DW999 Power Tool, (Ni-MH, 18V, 1500mAh) Ultra High Capacity, Replacement for DeWalt DC9096, DE9039, DE9095, DE9096, DE9503, DW9095 Battery : Tools & Home
18V Battery for 18 Volt Dewalt Rotary Hammers DW999K-2 DW999K2 DW999K DW999 DC213KB - Walmart.com
Dewalt DW999 cordless sds drill | Reviews | Power Tools
DeWalt DW999 Instruction manual : Free Download, Borrow, and Streaming : Internet Archive