M18 RADIUS Compact Site Light w/Flood Mode
Battery answer
Every reviewed M18 pack powers SKU 2144-20 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 · Task Lighting · SKU 2144-20 · 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 | 4.96 lb |
|---|
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2144-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Height | 1.13 in |
|---|---|
| Length | 9.33 in |
| Width | 9.33 in |
| Colors | Black · Red |
| Material | Plastic |
| Number of Pieces Included | 1 |
| ONE-KEY Enabled | No |
| PACKOUT Compatible | No |
| Warranty | 5 Year Limited Warranty |
What Milwaukee says about it
- 1000 Lumens of Task lighting
- 2,200 Lumens of Task, Area, and Overhead Lighting
- 2200 Lumens of Area Lighting
- 3 Area and Task Output Modes For Optimal Brightness and Runtime
- 4-1/4" Hanging Hook for Overhead Lighting
- AC Inlet for All Day Runtime
- Dual Function: 360° Area Lighting, 90° Flood Lighting
- High Impact Polycarbonate Lens
- High mode: 1000 Lumens for up to 6 hours with M18 XC 5.0 Battery
- High mode: 2200 Lumens for up to 4 hours with M18 XC 5.0 Battery
- Low mode: 250 Lumens for up to 24 hours with M18 XC 5.0 Battery
- Medium mode: 1100 Lumens for up to 8 hours with M18 XC 5.0 Battery
- Medium mode: 500 Lumens for up to 12 hours with M18 XC 5.0 Battery
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.