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Milwaukee M18 TOP-OFF 350W Power Supply & Charger w/ PACKOUT Compatibility 2856-20
Model: 2856-20 · SKU: 2856-20
Prepared Nov 12, 2026
Common specifications
| Compatible series | Milwaukee M18 batteries (one required, two supported)Source [1] |
|---|---|
| Rated AC output | 350 WSource [1] |
| Surge AC output | Not documented |
| Power | Not documented |
| Weight | Not documented |
| Dimensions | Not documented |
| Enclosure volume | Not documented |
| Warranty term | Not documented |
All recorded specifications
| AC output voltage | 120 VDocumented claim ConditionsPrinted as "(2) AC 120V Outlets". Location: Product page overview Printed as "(2) AC 120V Outlets". Location: Product page overview |
|---|---|
| Compatible series | Milwaukee M18 batteries (one required, two supported)Documented claim ConditionsPrinted as "The 350W Power Supply requires one M18 battery for operation, while using two batteries extends runtime." Location: Product page overview Printed as "The 350W Power Supply requires one M18 battery for operation, while using two batteries extends runtime." Location: Product page overview |
| Output waveform | Pure sine waveDocumented claim ConditionsPrinted as "pure sine wave inverter delivers high-quality power" on Milwaukee's own product page for this model. Location: Milwaukee product page for this model, feature text (October 21, 2026 capture); description line in the model's own page Printed as "pure sine wave inverter delivers high-quality power" on Milwaukee's own product page for this model. Location: Milwaukee product page for this model, feature text (October 21, 2026 capture); description line in the model's own page |
| Ports | (2) AC 120V outlets, (1) 100W USB-C PD port (bi-directional), (1) 15W USB-C portDocumented claim ConditionsPrinted as "It features (2) AC 120V Outlets, (1) 100W USB-C PD port, and (1) 15W USB-C port" and "100W bi-directional USB-C port". Location: Product page overview Printed as "It features (2) AC 120V Outlets, (1) 100W USB-C PD port, and (1) 15W USB-C port" and "100W bi-directional USB-C port". Location: Product page overview |
| Rated AC output | 350 WDocumented claim ConditionsPrinted as "350W Power Supply" in the product name and overview; the page does not say whether 350 W is continuous or peak output. Location: Product page title and overview Printed as "350W Power Supply" in the product name and overview; the page does not say whether 350 W is continuous or peak output. Location: Product page title and overview |
Warranty
Certificate records
No records documented.
Sources and revisions
- Milwaukee 2856-20 M18 TOP-OFF 350W Power Supply & Charger w/ PACKOUT Compatibility product page (September 26, 2026 capture)Official product page · Checked https://www.milwaukeetool.com/products/details/m18-top-off-350w-power-supply-charger-w-packout-compatibility/2856-20
- Milwaukee product page: M18™ TOP-OFF™ 350W Power Supply & Charger w/ PACKOUT™ Compatibility | Milwaukee Tool (October 21, 2026 capture)Official product page · Checked https://www.milwaukeetool.com/products/details/m18-top-off-350w-power-supply-charger-w-packout-compatibility/2856-20