DeWalt 20V to Kobalt 24V Battery Adapter
$58.00
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DeWalt 20V to Kobalt 24V Battery Adapter
$58.00
Taxes included.
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Safety feature
Built-in BMS Protection
Integrated Battery Management System (BMS) helps prevent battery over-discharge and improves safety.
Use your DeWalt 20V MAX batteries on Kobalt 24V cordless tools, without buying into a second battery platform. Your DeWalt 20V MAX battery runs at 20V and the tool at 24V. The converter holds it steady at the tool’s level, so the tool behaves as it would on its own battery. Built with an injection-molded ABS battery interface, a 3D-printed ABS tool socket for a close fit, and pure copper contacts. It is a cost-effective way to get more from the batteries you have, with no second charger to maintain. It also carries battery protection electronics (BMS) inside.
See it in action
Specifications
- SKU
- PTA-DWM20-KOB24
- Fits this battery
- DeWalt 20V MAX (Lithium-Ion)
- Battery voltage
- 20V
- Runs these tools
- Kobalt 24V (Lithium-Ion)from Lowe's
- Tool voltage
- 24V
- Housing
- ABS
- Terminals
- Copper
- Current rating
- 55A continuous (100A peak at 18VDC for up to 2 seconds)1188 Watt continuous at 21.6V nominal
- Weight
- 136 g (4.8 oz / 0.3 lb)
- Colour
- Yellow, Black
- Operating humidity
- 5–95% RH
- Operating temperature
- -10 °C to 50 °C (14 °F to 122 °F)
- USB port
- No
- Built-in BMS protection
- Yes
- What's in the box
- Battery Adapter
- Warranty
- 12 months after the date of deliveryMore details
- Revision
- Revision 01 (released on February 15, 2026)
Why choose this adapter
- A Battery Management System inside the adapter cuts power before the battery is drained too far — protection your battery may not have on its own.
- Solid copper terminals, so less of the current is lost as heat.
- Rated for 55A continuous with 100A 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.
DeWalt 20V MAX and Kobalt 24V compatibility
It works in one direction only: DeWalt batteries powering Kobalt tools. For the opposite pairing, see adapters that run on Kobalt 24V batteries.
Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the DeWalt 20V MAX platform and that your tool takes Kobalt 24V batteries.
Important charging and safety information
This adapter is for powering cordless tools and nothing else. It cannot charge DeWalt or Kobalt 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 DeWalt 20V MAX battery.
How it works
-
1. Use the battery you own
Any compatible DeWalt 20V MAX battery of 3Ah or more.
-
2. Slide on the adapter
It goes where the original Kobalt 24V battery sits.
-
3. Click in and work
No tools, no wiring, no modifications.
DeWalt 20V MAX to Kobalt 24V — 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 DeWalt 20V MAX battery measures off the charger with no load; 18 V is what it holds in use. Kobalt 24V tools are built around 21.6 V. The two numbers describe the same class of battery, which is why the adapter works rather than merely fits.
Will this fit my other DeWalt batteries?
Only DeWalt 20V MAX batteries. DeWalt also sells DeWalt 12V MAX, DeWalt 18V 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 Kobalt 24V tool run as long on a DeWalt 20V MAX battery?
Runtime comes from the battery, not the adapter: a 5.0Ah DeWalt 20V MAX battery lasts roughly twice as long as a 2.5Ah one. For this pairing use 3.0 Ah or more — a smaller battery can sag under what a Kobalt 24V tool draws and cut out before it is empty.
Could this damage my DeWalt 20V MAX battery or my Kobalt 24V tool?
Used with undamaged, compatible equipment it is not expected to. This adapter has its own Battery Management System, which cuts power before the battery is drained too far, so it protects the battery even where the battery has no protection of its own. Stop using it if the adapter becomes unusually hot, the contacts look damaged, or the tool behaves oddly.
Can I charge through the adapter?
No, and it should never be attempted. The adapter carries power one way only, out to the Kobalt 24V 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 DeWalt 20V MAX battery off the adapter and charge it on its own charger.
My Kobalt 24V gear came from Lowe's. Is that the same platform?
Yes — Lowe's is where Kobalt 24V is sold, so a battery or tool bought there is the platform this adapter is built for. What matters is the socket, and Lowe's stock is the reference for it.
Does it work with third-party DeWalt 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 Kobalt 24V 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 Kobalt 24V tool?
136 g (4.8 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.