Rockwell Automation 2090-DA-BAT2 TL Series Battery, Specifications: 3.6 VDC, 17 Bit Serial Encoder | SMC
Amazon.com: Synergy Digital Power Tool Battery, Works with Rockwell RS2114 Power Tool, (Li-Ion, 12V, 1500 mAh) Ultra High Capacity, Compatible with Rockwell WA3503 Battery : Electronics