M18 FUEL 1/4" Hex Impact Driver w/ ONE-KEY
Battery answer
Every reviewed M18 pack powers SKU 2957-20 at full rated performance, with no battery-specific condition.
- Battery platform
- Milwaukee M18
- Packs required
- 1 pack
- 9 work without conditions.
Battery requirement sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Compare the reviewed packs See tool specifications and sources
Milwaukee · Impact Drivers · SKU 2957-20 · Milwaukee source
Compare the reviewed M18 packs
| Battery | Capacity | Energy | Power level | Answer |
|---|---|---|---|---|
| 48-11-1813 | 12 Ah | 216 Wh | PWR5 | Works |
| 48-11-1820 | 2 Ah | 36 Wh | not published | Works |
| 48-11-1828 | 3 Ah | 54 Wh | not published | Works |
| 48-11-1840 | 4 Ah | 72 Wh | not published | Works |
| 48-11-1850 | 5 Ah | 90 Wh | PWR2 | Works |
| 48-11-1850R | 5 Ah | 90 Wh | not published | Works |
| 48-11-1861 | 6 Ah | 108 Wh | PWR4 | Works |
| 48-11-1865 | 6 Ah | 108 Wh | PWR3 | Works |
| 48-11-1881 | 8 Ah | 144 Wh | PWR4 | Works |
Energy is capacity × nominal voltage — our arithmetic on Milwaukee’s figures, not a number they publish. It is the only honest way to compare packs across capacities. Power level is Milwaukee’s own PWR tier where they publish one.
Compatibility sources (1)
- Milwaukee Tool — manufacturer support, retrieved 2026-07-30“All M18 Batteries are compatible with M18 tools & chargers.”
Tool specifications and manufacturer claims
Basic tool facts
| Weight, bare tool | 2.3 lb |
|---|
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2957-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Height | 8 in |
|---|---|
| Length | 4.49 in |
| Width | 2.6 in |
| Branding | Badge: FUEL · Tool: FUEL |
| Chuck Size | 1/4 in |
| Chuck Type | Hex Quick Change |
| Colors | Black · Red |
| DRIVE CONTROL | 4-Mode (Customizable) |
| Drive Size | 1/4 in |
| FUEL | Yes |
| Handle Type | Pistol Grip |
| IPM Range | 0 - 4,400 IPM |
| Charger | No |
| Maximum Torque | 2000 in-lbs |
| Motor Type | POWERSTATE Brushless |
| Number of Batteries Included | 0 |
| Number of Batteries Required | 1 |
| Number of Pieces Included | 2 |
| ONE-KEY Enabled | Yes |
| RPM Range | 0 - 3900 RPM |
| Variable Speed | Yes |
| Warranty | 5 Year Limited Warranty |
What Milwaukee says about it
- POWERSTATE Brushless Motor delivers unmatched power for full range of capability to complete the widest variety of applications
- Increase productivity on the jobsite with the fastest driving speed of any impact driver without sacrificing power or control
- ULTIMATE TRIGGER CONTROL by providing smooth acceleration for small fasteners to prevent stripping of screws or damaging of materials
- Tri-LED Lighting for maximum workspace visibility
- Compact Size (4.47") for access in tight spaces
- 4-Mode Drive Control
- 2000 in-lbs of torque
- 3900 RPM
- Single Handed Bit Insertion for Ease of Use
- 2.2lbs
- All-metal belt clip for portability
- Compatible with all M18 batteries & chargers
- Most Powerful
- Fastest Driving Speed
- Ultimate Trigger Control
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.