M18 Cordless 4-1/2" Cut-off / Grinder (Tool Only)
Battery answer
Every reviewed M18 pack powers SKU 2680-20 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 · Grinders · SKU 2680-20 · 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 Cordless LITHIUM-ION 4-1/2" Cut-off / Grinder Kit (2680-22)
| Qty | Component | SKU |
|---|---|---|
| 1 | M18 Cordless 4-1/2" Cut-off / Grinder (Tool Only) | 2680-20 |
| 2 | M18 REDLITHIUM XC Extended Capacity Battery | 48-11-1828 |
| 1 | M18 & M12 Multi-Voltage Charger | 48-59-1812 |
Battery capacity in the box: 6.0 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 2680-22 (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Tool specifications and manufacturer claims
Basic tool facts
| Weight, bare tool | Not published for this exact SKU |
|---|
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2680-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Tool Warranty | 5 Years |
|---|---|
| Power Source | Cordless |
| Warranty | 5 Year Limited Warranty |
| Tool Free Guard | Yes |
| Paddle Switch | Yes |
| Large Button Spindle Lock | Yes |
| Position Handle | 3 |
| Type 1 Guard | Yes |
| Type 27 Guard | Yes |
| Voltage | 18V |
| Switch Type | Paddle |
| Wheel Diameter | 4-1/2" |
What Milwaukee says about it
- Milwaukee 4-Pole Motor- Delivers maximum power when cutting or grinding
- Overload Protection- Prevents damage to the tool and battery in abusive situations
- Debris Baffles - L-shape vents keep debris from entering the tool and damaging internal components to help increase tool life.
- Tool Free, Burst Resistant Guard- Allows for quick, easy guard adjustments. Easy to access and actuate too free guard makes it easier and less time consuming to adjust the guard for various applications.
- Paddle Switch Design- The only cordless cut-off /grinder in the market with a paddle switch design
- Up to 35% faster cutting speed
- Up to 50% more cuts on a single charge
- 3-Position Side Handle- Provides optimal Control and Versatility
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.