Milwaukee 18V to Parkside X20V Battery Adapter
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Use your Milwaukee M18 batteries on Parkside X20V cordless tools, without buying into a second battery platform. Constructed from durable molded ABS with pure copper contacts, for a secure fit and dependable current transfer. It keeps one battery platform serving more tools, which costs less than buying into another.
Specifications
- SKU
- PTA-MIL18-PSX20
- Fits this battery
- Milwaukee M18 (Lithium-Ion)
- Battery voltage
- 18V
- Runs these tools
- Parkside X20V (Lithium-Ion)from Lidl
- Tool voltage
- 20V
- Housing
- ABS (Injected)
- Terminals
- Copper
- Current rating
- 40A continuous (80A peak at 18VDC for up to 2 seconds)
- Internal wiring
- 5 mm²
- Weight
- 93 g (3.3 oz / 0.21 lb)
- Colour
- Black
- 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 deliveryMore details
Why choose this adapter
- 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.
Milwaukee M18 and Parkside X20V compatibility
It works in one direction only: Milwaukee batteries powering Parkside tools. For the opposite pairing, see adapters that run on Parkside X20V batteries.
Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the Milwaukee M18 platform and that your tool takes Parkside X20V batteries.
Important charging and safety information
This adapter is for powering cordless tools and nothing else. It cannot charge Milwaukee or Parkside 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 Milwaukee M18 battery.
How it works
-
1. Use the battery you own
Any compatible Milwaukee M18 battery you already have.
-
2. Slide on the adapter
It goes where the original Parkside X20V battery sits.
-
3. Click in and work
No tools, no wiring, no modifications.
Milwaukee M18 to Parkside X20V — Common Questions
Will this fit my other Milwaukee batteries?
Only Milwaukee M18 batteries. Milwaukee also sells Milwaukee M12, Milwaukee V18 Ni-Cd, and those use a different socket — same brand, different rail and contacts, so they need their own adapter. Compare the rail on your battery with the photos before ordering.
Will my Parkside X20V tool run as long on a Milwaukee M18 battery?
Runtime comes from the battery, not the adapter — a 5.0Ah Milwaukee M18 battery lasts roughly twice as long as a 2.5Ah one, exactly as it would on its own tool. The adapter’s copper terminals and heavy-gauge wiring are there to keep resistive loss low.
Could this damage my Milwaukee M18 battery or my Parkside X20V tool?
Used with undamaged, compatible equipment it is not expected to. Milwaukee M18 batteries are lithium-ion with a protection circuit built into the battery, and it keeps working through the adapter — it stays in the battery and never moves into the adapter. Stop when the tool slows noticeably rather than running the battery flat, and stop using the adapter if it becomes unusually hot or the contacts look damaged.
Can I charge through the adapter?
No, and it should never be attempted. The adapter carries power one way only, out to the Parkside X20V tool — there is no charging circuit inside it. Connecting it to a charger puts the battery, the charger and the adapter at risk. Always take the Milwaukee M18 battery off the adapter and charge it on its own charger.
My Parkside X20V gear came from Lidl. Is that the same platform?
Yes — Lidl is where Parkside X20V is sold, so a battery or tool bought there is the platform this adapter is built for. What matters is the socket, and Lidl stock is the reference for it.
Does it work with third-party Milwaukee batteries?
Usually. What matters is the socket, not the badge: if the battery slides on and locks the way an original does, the adapter takes it and the Parkside X20V tool runs. Aftermarket moulding does vary, so if yours looks unusual send us a photo and we will check before you order.
How much does it add to the Parkside X20V tool?
93 g (3.3 oz) and a short extension between battery and tool. You notice it overhead or in a tight cabinet; on a drill or driver held normally it disappears.