Stanley V20 to RIDGID 18V Battery Adapter
€36,95
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Stanley V20 to RIDGID 18V Battery Adapter
€36,95
Taxes included.
Free Shipping to Germany & UK. Other European countries around €3 (local currency applied)Zero customs fees. Zero surprise taxes.
Use your Stanley V20 batteries on RIDGID 18V cordless tools, without buying into a second battery platform. The 3D-printed ABS housing keeps the fit precise, and pure copper contacts keep current delivery steady. A practical way to extend the value of the Stanley V20 batteries you already have.
Specifications
- Fits this battery
- Stanley V20 (Lithium-Ion)
- Battery voltage
- 20V
- Runs these tools
- RIDGID 18V (Lithium-Ion)from Home Depot
- Tool voltage
- 18V
- Housing
- ABS (3D)
- 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
- 108 g (3.8 oz / 0.24 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
- Revision
- Revision 01 (released on October 5, 2025)
Why choose this adapter
- 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.
Stanley V20 and RIDGID 18V compatibility
It works in one direction only: Stanley batteries powering RIDGID tools. For the opposite pairing, see adapters that run on RIDGID 18V batteries.
Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the Stanley V20 platform and that your tool takes RIDGID 18V batteries.
Important charging and safety information
This adapter is for powering cordless tools and nothing else. It cannot charge Stanley or RIDGID 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 Stanley V20 battery.
How it works
-
1. Use the battery you own
Any compatible Stanley V20 battery you already have.
-
2. Slide on the adapter
It goes where the original RIDGID 18V battery sits.
-
3. Click in and work
No tools, no wiring, no modifications.
Stanley V20 to RIDGID 18V — Common Questions
My battery says 20V. Can it run a tool rated differently?
Yes, and they are closer than the labels suggest. 20V is what a Stanley V20 battery measures off the charger with no load; 18V is what it holds in use. RIDGID 18V tools are built around 18V. The two numbers describe the same class of battery, which is why the adapter works rather than merely fits.
Will my RIDGID 18V tool run as long on a Stanley V20 battery?
Runtime comes from the battery, not the adapter — a 5.0Ah Stanley V20 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 Stanley V20 battery or my RIDGID 18V tool?
Used with undamaged, compatible equipment it is not expected to. Stanley V20 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 RIDGID 18V 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 Stanley V20 battery off the adapter and charge it on its own charger.
My RIDGID 18V gear came from Home Depot. Is that the same platform?
Yes — Home Depot is where RIDGID 18V is sold, so a battery or tool bought there is the platform this adapter is built for. What matters is the socket, and Home Depot stock is the reference for it.
Does it work with third-party Stanley 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 RIDGID 18V 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 RIDGID 18V tool?
108 g (3.8 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.