#1 Home Improvement Retailer

Internet #206525714

Model #DCA1820

20-Volt MAX Lithium-Ion Battery Adapter for 18-Volt Tools

  • Lets you use 20-Volt MAX slide pack batteries with 18-Volt tools
  • Works with Most DEWALT 18-Volt power tools
  • Requires DEWALT 20-Volt MAX charger (sold separately)
  • See More Details

Frequently Bought Together

+
+
Price:

Product Overview

DEWALT power tools are made to live on the jobsite. That is where they are tested, and if there is a problem, it’s where we solve it.

DEWALT Guaranteed Tough

DEWALT power tools are made to live on the jobsite. That is where they are tested, and if there is a problem, it’s where we solve it.

Select from a variety of 20 VOLT batteries to fit your need, or get up to eight times runtime when using DEWALT FLEXVOLT batteries with 20 VOLT tools.

Multiple Battery Options

Select from a variety of 20 VOLT batteries to fit your need, or get up to eight times runtime when using DEWALT FLEXVOLT batteries with 20 VOLT tools.

Take charge with 200+ products in the 20 VOLT MAX line, each designed to fit the job. All tools come with upgraded features and superior ergonomics.

DEWALT 20 VOLT MAX System

Take charge with 200+ products in the 20 VOLT MAX line, each designed to fit the job. All tools come with upgraded features and superior ergonomics.

LED displays charge status.

LED Display

LED displays charge status.

Battery charge time is +/- 1.5 hour.

Battery Charge Time

Battery charge time is +/- 1.5 hour.

Compatible with DEWALT 20 VOLT and 18 VOLT Batteries.

DEWALT 20 VOLT MAX

Compatible with DEWALT 20 VOLT and 18 VOLT Batteries.

3-Year Limited Warranty, 1-Year Free Service and 90-Day Money Back Guarantee.

Tool Warranty

3-Year Limited Warranty, 1-Year Free Service and 90-Day Money Back Guarantee.

20V MAX and FLEXVOLT Batteries are Compatible with all DEWALT 20V MAX Tools.

Compatibility

20V MAX and FLEXVOLT Batteries are Compatible with all DEWALT 20V MAX Tools.

20 VOLT 1.3Ah, 1.5Ah, 2.0Ah and 3.0Ah feature a compact and Lightweight design.

Lightweight Design

20 VOLT 1.3Ah, 1.5Ah, 2.0Ah and 3.0Ah feature a compact and Lightweight design.

No memory and virtually no self-discharge for maximum productivity and less downtime.

No Battery Memory

No memory and virtually no self-discharge for maximum productivity and less downtime.

90-Day money back guarantee and up to 3-year free service agreement.

Warranty

90-Day money back guarantee and up to 3-year free service agreement.

20 VOLT 4.0Ah and 5.0Ah batteries and 60 VOLT FLEXVOLT batteries are designed for longer runtimes and more power.

Runtime and Power

20 VOLT 4.0Ah and 5.0Ah batteries and 60 VOLT FLEXVOLT batteries are designed for longer runtimes and more power.

Get up to 8x the runtime when using DEWALT FLEXVOLT batteries with 20 VOLT MAX tools.

FLEXVOLT Compatible

Get up to 8x the runtime when using DEWALT FLEXVOLT batteries with 20 VOLT MAX tools.

Add versatility to your toolbox with the DEWALT DCA1820 20-Volt MAX to 18-Volt tool adapter. This adapter allows you to use selected DEWALT 20-Volt MAX Lithium Ion slide pack batteries with DEWALT 18-Volt power tools. Now you don't have to compromise when it comes to battery packs or buy duplicate tools.

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Specifications

Dimensions

Product Height (in.)
7
Product Length (in.)
3 in
Product Width (in.)
3.187 in

Details

Battery Amp Hours
No Battery
Battery Amp Hours
0.0
Battery Power Type
Lithium Ion
Charge time (min.)
0
Color Family
Yellow
Number of Total Batteries Included
0
Power Tool Accessory Type
Battery
Power Tool Features
No Additional Features
Rechargeable
Yes
Returnable
90-Day
Tools Product Type
Power Tool
Voltage (volts)
20

Questions & Answers

45Questions39Answers

Does the following mean that this adapter cannot be used with a DC970 at all or that it can but o...

Asked by Unclear May 22, 2021
4
Answers

I would say it can’t. I bought one because I had multiple 20 V batteries and tools. At the time I needed a brad nailer that only came in 18 V. It worked but had issues(resolved by taking battery out and putting it back in). At the time Dewault didn’t acknowledge an issue, they must have figured out which one combination had problems.

Will this setup work in the dewalt portable radio

Asked by Jamesds016 April 6, 2021
2
Answers

No.

Why is it almost impossible to remove the adapter form any tool so it could be used on others ??

Asked by jubel January 12, 2021
5
Answers

I have no problem removing the adapter. I think its a great adapter

Can I use a 20-vold battery charger in Ireland?

Asked by Walter November 28, 2020
4
Answers

It is an adapter and doesn’t go into a charger.

Will this work with 18volt xrp ni-cad brush type tools?

Asked by 1920hotel November 20, 2020
4
Answers

Yes

will this work for a DC759 drill driver and a DC825 impact driver?

Asked by Rafy September 20, 2020
5
Answers

everything went smoothly and works great thanks

Will the DCA1820 work with an DW935 14.4v circular saw?

Asked by Pablo September 19, 2020
4
Answers

Only 18v tools

Can I use this adapter with a DeWalt Flexvolt 20/60-volt battery?

Asked by Roger August 9, 2020
4
Answers

Yes. There's 2 little pieces of plastic that you can cut off and make it work. Very minor

Will this work as a replacement for DC9181 Battery for my DCD760 DeWalt cordless drill?

Asked by Gari June 21, 2020
5
Answers

Yes

Will the adapter fit in the DC102 work site radio?

Asked by KCC June 17, 2020
2
Answers

Not my 18v old school raduo but sure of my model. Not my old vac either. My old finish nailer hated it and worked randomly bad with it. My grinder, sabre, saw and drills it was ok. Forced me to upgrade my set to now mostly 20v. Reviews typically state its hard to remove from tools...Its just a knack to get out: Pinch tabs firmly and close to the tool firmly pull straight out. There is a good arguement for just upgrading to 18v lithium batteries instead depending on your use. It helped me transition with my upgrades if thats your purpose.

20-Volt MAX Lithium-Ion Battery Adapter for 18-Volt Tools - page 2

Customer Reviews

  • 4.3
    out of 844 reviews
  • 80% recommend this product
Filter by:
Showing 1-10 of 844 reviews
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Great Porduct That Needs Better Manual
It does what it supposed to do. The two sticking tabs on both sides were the newest edition to prevent usage with 20V Max Premium batteries as it they are not compatible with some 18V equipment (see the manual for the list). So all of the people who had hard time removing batteries is because those are premium batteries (5Ah and up). For regular 20V Max Li-I batteries those tabs on the adapter are not on the way. Attached picture that explains it.
by sbkmmi
5 people found this helpful
Not perfect, but it does what it is supposed to do. It does provide a method to use the 20-Volt M...
Not perfect, but it does what it is supposed to do. It does provide a method to use the 20-Volt MAX batteries with old 18-Volt tools (Drill and Saw). While the adapter fits the tools and clips in properly, it does not fully fill the space at the bottom of the tool that the old battery took. I also found that the 20-Volt MAX batteries slowly discharge when left in the adapters. I now keep the adapters in the tools and never leave the battery in the adapter when not in use. The batteries no longer discharge while stored. I don't know why the adapter itself is so large or angled. The combination of the adapter and 2AH battery is similar in size to the old 18-Volt packs that I had, but the adapter could have been less than half the size that it is. If you have multiple 18-Volt tools, getting these adapters to extend the life of the tool and use current battery technology is the way to go.
by JLoss
1 person found this helpful
Works with most 18v Dewalt tools
The adapter fits most of 20v max batteries 1.5AH, 2AH, 3AH, 4AH,
by HomeDIY
3 people found this helpful
This is great you can keep all your 18 volt tools and still use the same battery as the 20 volt t...
This is great you can keep all your 18 volt tools and still use the same battery as the 20 volt tools. Money well spent. Because in was thinking about getting rid of my 18 volt so I could use the same battery for all of them.
by Mel3
1 person found this helpful
No need to waste money on outdated battery technology ( XRP battery, which cost the same as lith...
No need to waste money on outdated battery technology ( XRP battery, which cost the same as lithium batteries) which discharge in your tool box by themselves, enough to delay you in starting a job, or invest in a newer lithium bare tool, when all your XRP tools work fine and will work even better with the latest battery technology, just get this adapter and maybe a new kit on sale with 4 ah or 5 ah batteries even 2 ah are great ( more or bigger batteries even better ) and your work day will go faster and longer. Best addition of my tool box in a while.
by Tourist
This was exactly what I was looking for to use my 20 volt batteries for my 18 volt tools so I cou...
This was exactly what I was looking for to use my 20 volt batteries for my 18 volt tools so I could do more with less. My order came in extremely fast and I absolutely love it they work perfect
by Speakeasy
1 person found this helpful
The 20 volts adapter works very good with all my old 18 volt drills. I definitely recommend it....
The 20 volts adapter works very good with all my old 18 volt drills. I definitely recommend it. You save money by using the new 20volt batteries.
by Zorrillo
1 person found this helpful
It seems to work good when I plug it into my 18 volt angle nailer at first but then I have to rea...
It seems to work good when I plug it into my 18 volt angle nailer at first but then I have to readjust it to get the connectivity to work correctly almost every time !!!! Not happy !!!!!
by Nobody
5 people found this helpful
Works great!
Works great!
by Jm82
Showing 1-10 of 844 reviews