Ryobi 18V to Milwaukee 18V Battery Adapter
$37.39
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Ryobi 18V to Milwaukee 18V Battery Adapter
$37.39
Use your Ryobi 18V ONE+ batteries on Milwaukee M18 cordless tools, without buying into a second battery platform. Both run at 18V, so the adapter changes the fitting and not the voltage. Constructed from durable molded ABS with pure copper contacts, for a secure fit and dependable current transfer. Your existing batteries do more work, and there is no second ecosystem to buy into.
Specifications
- SKU PTA-RYO18-MIL18
- Fits this battery Ryobi 18V ONE+ (Lithium-Ion)
- Battery voltage 18V
- Runs these tools Milwaukee M18 (Lithium-Ion)
- Tool voltage 18V
- Housing ABS (Injected)
- Terminals Copper
- Current rating 40A continuous (80A peak at 18VDC for up to 2 seconds)720 Watt continuous at 18V nominal
- Internal wiring 5 mm²
- Weight 173 g (6.1 oz / 0.38 lb)
- Dimensions (L × W × H) 106 × 76 × 92 mm (4.17 × 2.99 × 3.62 in)
- Colour Red
- Operating humidity 5–95% RH
- Operating temperature -10 °C to 50 °C (14 °F to 122 °F)
- USB port No
- What's in the box Battery Adapter
- Warranty 12 months after the date of delivery
- Revision Revision 01 (released on July 26, 2024)
Why choose this adapter
- Your Ryobi 18V ONE+ battery and Milwaukee M18 tools run at the same voltage, so the adapter changes the fitting rather than converting anything.
- Injection-moulded ABS, not 3D printed — no layer lines to split under load.
- Solid copper terminals, so less of the current is lost as heat.
- 5 mm² internal wiring, rated for 40A continuous with 80A peak at 18VDC for up to 2 seconds, so a high-draw tool is not held back by the adapter.
- Covered by a 12-month warranty from the day it arrives.
Ryobi 18V ONE+ and Milwaukee M18 compatibility
It works in one direction only: Ryobi batteries powering Milwaukee tools. For the opposite pairing, see adapters that run on Milwaukee M18 batteries.
Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the Ryobi 18V ONE+ platform and that your tool takes Milwaukee M18 batteries.
Important charging and safety information
This adapter is for powering cordless tools and nothing else. It cannot charge Ryobi or Milwaukee batteries and must never be connected to a charger of any kind. Always take the battery out of the adapter before charging, and charge it on the original charger made for your Ryobi 18V ONE+ battery.