M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Slide Switch, Lock-On
Battery answer
Every reviewed M18 pack powers SKU 2883-20 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 · Grinders · SKU 2883-20 · 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.”
Kit configurations
Ways Milwaukee sells this exact tool in a box. Contents are decomposed to manufacturer SKUs; non-SKU’d accessories — side handles, belt clips, cases — are omitted because they carry no compatibility meaning.
M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Slide Switch, Lock-On (2883-22)
| Qty | Component | SKU |
|---|---|---|
| 1 | M18 FUEL 4-1/2" / 5" Braking Grinder w/ ONE-KEY Slide Switch, Lock-On | 2883-20 |
| 2 | M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery Pack | 48-11-1865 |
| 1 | M18 & M12 Rapid Charger | 48-59-1808 |
Battery capacity in the box: 12.0 Ah across 2 pack(s). This is the directly comparable capacity when weighing the kit against the bare tool plus packs.
Contents provenance: manufacturer claim; review completed 2026-07-31 by jon.
Contents sources for 2883-22 (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Tool specifications and manufacturer claims
Basic tool facts
| Brushless | Yes |
|---|---|
| Weight, bare tool | 3.15 lb |
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2883-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Arbor Hole Diameter | Yes |
|---|---|
| Height | 4.36 in |
| Length | 13.13 in |
| Width | 2.76 in |
| Branding | Badge: FUEL · Tool: FUEL |
| Brushless Motor | Yes |
| Colors | Black · Red |
| Cutting Width | 5 in |
| FUEL | Yes |
| Handle Type | Straight |
| Material | Metal |
| Motor Type | Brushless |
| Number of Batteries Required | 1 |
| Number of Pieces Included | 1 |
| ONE-KEY Enabled | Yes |
| Warranty | 5 Year Limited Warranty |
| Weight w/Batteries | 3.17 lb |
What Milwaukee says about it
- POWERSTATE Brushless Motor: Purposely built for the M18 FUEL 4-1/2" / 5" Braking Grinder with ONE-KEY delivers 8,500 RPM to provide the power to complete the toughest grinding and cutting applications.
- REDLINK PLUS Intelligence: Most advanced system of electronics in the industry, enabling communication between batteries and tools, allowing for unmatched levels of performance, protection, and compatibility.
- REDLITHIUM HIGH OUTPUT Battery Pack (Not Included): Provides 50% more power and runs 50% cooler versus standard REDLITHIUM Battery. Superior pack construction, electronics and performance deliver more work per charge and more work over pack lifespan than any battery on the market.
- RAPIDSTOP Brake stops all accessories in 2 seconds or less for enhanced safety
- Slide Switch Designed to Reduce User Fatigue
- Tool-Free Guard Adjustment for faster guard installations and adjustments
- Compatible with all M18 batteries
- Electronic Clutch for Kickback Protection
- 5/8"-11 Spindle for Use with Common Grinding Accessories
- Overload Protection to Maximize Motor Life
- Anti-Vibration Side Handle for Increased User Comfort and Safety
- ONE-KEY Tracking and Tool Management
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.