M18 Orbital 1/4 Sheet Sander
Battery answer
Every reviewed M18 pack powers SKU 2649-20 at full rated performance, with no battery-specific condition.
- Battery platform
- Milwaukee M18
- Packs required
- Not published by Milwaukee
- 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 · Sanders · SKU 2649-20 · 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 | 2.5 lb |
|---|
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2649-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Height | 5.9 in |
|---|---|
| Length | 5.2 in |
| Width | 5.6 in |
| Color | Red |
| FUEL | No |
| Handle Type | Claw |
| Material | Metal |
| Motor Type | Brushed |
| Number of Pieces Included | 1 |
| ONE-KEY Enabled | No |
| Tool Branding | Brushed |
| Warranty | 5 Year Limited Warranty |
| Weight w/Batteries | 2.6 lb |
What Milwaukee says about it
- Low vibration levels deliver enhanced comfort and user control to reduce fatigue
- Up to 95% dust collected for a cleaner work environment with less clean up time.
- Variable Speed Dial offers adjustment from 13K to 11K OPM for greater control of the material removal rate.
- Two-step clamp system allows for quick and easy sandpaper changes
- Orbit diameter of 1.6mm delivers strong balance of removal rate and surface finish.
- Durable cotton dust bag delivers greater resistance against tears and leaks.
- Included universal hose adapter provides compatibility with a wide range of vacuum sizes.
- Part of the Milwaukee M18 System, featuring over 200+ tools.
- REDLINK Technology ensures maximum performance and protects from overloads, heating, and over-discharge.
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.