M18 FUEL 7" / 9" Large Angle Grinder (Tool Only)
Battery answer
Every reviewed M18 pack powers SKU 2785-20 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 2785-20 · 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 | 11.95 lb |
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2785-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Arbor Hole Diameter | Yes |
|---|---|
| Height | 5.66 in |
| Length | 22.31 in |
| Width | 9.4 in |
| Branding | Badge: FUEL · Tool: FUEL |
| Brushless Motor | Yes |
| Colors | Black · Red |
| FUEL | Yes |
| Material | Metal |
| Motor Type | Brushless |
| Number of Batteries Required | 1 |
| Number of Pieces Included | 1 |
| ONE-KEY Enabled | No |
| Warranty | 5 Year Limited Warranty |
| Weight w/Batteries | 11.95 lb |
What Milwaukee says about it
- Delivers the power of 15 Amp corded large angle grinder
- Tool free accessory changes and guard adjustments
- Fully compatible with the M18 system, featuring over 200+ tools
- POWERSTATE brushless motor: purposely built for the M18 FUEL 7 in./9 in. L angle grinder to generate the power and performance of a 15 Amp corded large angle grinder
- REDLINK PLUS intelligence: ensures optimal performance and provides overload protection to prevent damage to the tool and battery during heavy applications while still maintaining compatibility across the entire M18 system
- REDLITHIUM high output HD12.0 battery pack: provides 50% more power and runs 50% cooler versus standard REDLITHIUM HD packs, superior pack construction provides the industry ft. s best protection against jobsite conditions
- 100% tool free: make all accessory changes and guard adjustments without a wrench for increased productivity
- Metal housing and gearing system providing legendary durability
- Dual action trigger: eliminating accidental trigger actuation
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.