M18 FUEL 7” Variable Speed Polisher
Battery answer
Every reviewed M18 pack powers SKU 2738-20 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 and Polishers · SKU 2738-20 · 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
| Brushless | Yes |
|---|---|
| Weight, bare tool | 4.84 lb |
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2738-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Peak Amps | 5 A |
|---|---|
| Height | 7.2 in |
| Length | 19.8 in |
| Width | 4.1 in |
| Branding | Badge: FUEL · Tool: FUEL |
| Brushless Motor | Yes |
| Colors | Black · Red |
| FUEL | Yes |
| Material | Metal |
| Motor Type | POWERSTATE Brushless |
| Number of Pieces Included | 1 |
| Warranty | 5 Year Limited Warranty |
What Milwaukee says about it
- Cordless Detailing
- Full-Size Car On One Charge
- Fully compatible with the M18 system, featuring over 200+ tools
- Total control
- 7 in. pad capacity
- 0 - 2,200 RPM
- Variable speed dial and trigger
- Lock-on/lock-off switch
- Constant power technology
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.