M18 FUEL 17” Dual Battery String Trimmer
Battery answer
Every reviewed M18 pack powers SKU 3006-20 only when the same condition is met.
- Battery platform
- Milwaukee M18
- Packs required
- 2 packs installed together
Shared condition for every pack
- Requires 2 packs installed together.
- Requires more than one pack installed together. Use a matched set of the same capacity.
Shared condition sources (2)
- Milwaukee Tool — manufacturer support, retrieved 2026-07-30“All M18 Batteries are compatible with M18 tools & chargers.”
- ToolSpecs Editorial — owner observation, retrieved 2026-07-30“Reviewer judgment from long-term M18 ownership, for the five tools where Milwaukee publishes no compatibility claim. Not a manufacturer statement.”
- 9 work with conditions.
Battery requirement sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Compare the reviewed packs See tool specifications and sources
Milwaukee · String Trimmers · SKU 3006-20 · Milwaukee source
Compare the reviewed M18 packs
| Battery | Capacity | Energy | Power level | Answer |
|---|---|---|---|---|
| 48-11-1813 | 12 Ah | 216 Wh | PWR5 | Conditions apply |
| 48-11-1820 | 2 Ah | 36 Wh | not published | Conditions apply |
| 48-11-1828 | 3 Ah | 54 Wh | not published | Conditions apply |
| 48-11-1840 | 4 Ah | 72 Wh | not published | Conditions apply |
| 48-11-1850 | 5 Ah | 90 Wh | PWR2 | Conditions apply |
| 48-11-1850R | 5 Ah | 90 Wh | not published | Conditions apply |
| 48-11-1861 | 6 Ah | 108 Wh | PWR4 | Conditions apply |
| 48-11-1865 | 6 Ah | 108 Wh | PWR3 | Conditions apply |
| 48-11-1881 | 8 Ah | 144 Wh | PWR4 | Conditions apply |
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.
Where the answer is not a plain yes
Applies to every M18 pack
Works, with conditions
Works only when the conditions below are met.
| Physical fit | yes |
|---|---|
| Operation | full |
| Recommendation | acceptable |
Conditions
- Requires 2 packs installed together.
Requires more than one pack installed together. Use a matched set of the same capacity.
Evidence (2)
- Milwaukee Tool — manufacturer support, retrieved 2026-07-30“All M18 Batteries are compatible with M18 tools & chargers.”
- ToolSpecs Editorial — owner observation, retrieved 2026-07-30“Reviewer judgment from long-term M18 ownership, for the five tools where Milwaukee publishes no compatibility claim. Not a manufacturer statement.”
Compatibility sources (2)
- Milwaukee Tool — manufacturer support, retrieved 2026-07-30“All M18 Batteries are compatible with M18 tools & chargers.”
- ToolSpecs Editorial — owner observation, retrieved 2026-07-30“Reviewer judgment from long-term M18 ownership, for the five tools where Milwaukee publishes no compatibility claim. Not a manufacturer statement.”
Tool specifications and manufacturer claims
Basic tool facts
| Brushless | Yes |
|---|---|
| Weight, bare tool | 11.8 lb |
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 3006-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Height | 9.5 in |
|---|---|
| Length | 73 in |
| Width | 14 in |
| Branding | Badge: FUEL · Tool: FUEL |
| Brushless Motor | Yes |
| Color | Red |
| Cutting Swath | 17 in |
| Cutting Width | 17 in |
| FUEL | Yes |
| Handle Type | Overmolded |
| Head Style | Easy Load |
| Maximum Line Diameter | 0.105 in |
| Material | Nylon |
| Maximum Horsepower | 3.87 HP |
| Motor Type | POWERSTATE Brushless |
| Number of Batteries Required | 2 |
| Number of Pieces Included | 2 |
| ONE-KEY Enabled | No |
| QUIK-LOK Attachment Capable | No |
| Rust Resistant | Yes |
| Warranty | 3 Years (Tool), 3 Years (Battery) |
What Milwaukee says about it
- POWERSTATE Brushless Motor delivers more power than gas or high voltage systems providing users up to 3.8HP of peak power and 5.25Nm of peak torque
- Requires (2) M18 REDLITHIUM batteries to operate
- REDLINK PLUS Intelligence offers total system communication between tool and battery for unmatched levels of performance, protection, and productivity allowing users to cut through demanding applications while maintaining the highest level of RPMs compared to competitor units
- Reaches full throttle under 1 second and eliminates the headaches of gas like pull starts, high noise levels, emissions, mixing gas and oil, and engine maintenance
- Cutting Swath: 15" - 17"
- Features the Milwaukee Easy Load Trimmer Head
- Line Diameter: 0.080" / 0.095" / 0.105”
- RPM: 0-4900 / 0-6200
- Variable Speed Trigger for increased user control
- Optimized for the REDLITHIUM HIGH OUTPUT XC 8.0 batteries
- Fully compatible with the M18 System featuring over 250+ tools
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.