Quick Specs
What Battery Does the DeWalt DCF899 Use?
The DeWalt DCF899 runs on the DeWalt 20V MAX battery platform. Any DeWalt 20V MAX or XR battery will work, and FLEXVOLT 60V MAX batteries are also backward-compatible.
About the DeWalt DCF899
The DeWalt DCF899 is a 20V MAX XR high-torque impact wrench delivering a massive 950 N·m of breakaway torque with a 1/2 inch detent pin anvil. It features 3 speed settings, a precision wrench control mode for tightening applications, and a heavy-duty hog ring for one-handed socket changes. Built for automotive, construction, and industrial bolting.
Compatible Batteries for the DeWalt DCF899
| Battery Model | Capacity | Weight | Rating |
|---|---|---|---|
| DCB201 | 1.5Ah | 0.33kg | Compatible |
| DCB203 | 2.0Ah | 0.37kg | Compatible |
| DCB200 | 3.0Ah | 0.45kg | Compatible |
| DCB204 | 4.0Ah | 0.59kg | Compatible |
| DCB205 | 5.0Ah | 0.62kg | Recommended |
| DCB206 | 6.0Ah | 0.69kg | Recommended |
Recommended Cutting Discs
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Recommended Battery
DCB205 or DCB206 — Impact wrenches draw extremely high current during breakaway torque. A 5.0Ah or 6.0Ah battery is essential for automotive and heavy bolting work to avoid mid-job drops.
Minimum Battery
DCB204 — A 4.0Ah battery handles lighter bolting tasks but will drain quickly during sustained high-torque use on large fasteners.
Battery Compatibility Notes
All DeWalt 20V MAX batteries share the same rail-mount system. FLEXVOLT batteries are backward-compatible at 20V. Higher Ah ratings mean longer runtime, not more power.
Related Resources
See our DeWalt Battery Compatibility Guide, the DeWalt 20V MAX vs FLEXVOLT Guide, or Battery FAQ.
Battery sizing, runtime & troubleshooting
Recommended pack: 950Nm fastening / 1,625Nm breakaway — sustained heavy fastening wants a 5.0Ah+; a 2.0Ah limits work per charge.
Compatibility caveats: Brushless motor.
If it won’t start or cuts out: Cutting out on a stubborn nut means the pack is too small or too low — fit a 5.0Ah+.
Runtime: No per-charge figure published.
Versus the adjacent model: The heavy-draw counterpart to the DCF887 impact driver — keep the driver on compacts and feed this wrench the big packs.
Where to Buy
Ready to add the DeWalt DCF899 to your toolkit? Check current prices and availability:
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