Model#: DEWNDCA2203C

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Dewalt DCA2203C 20V MAX Lithium-Ion Battery Adapter Kit for 18V Cordless Tools

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Product Overview


You can now use Dewalt's 20V MAX line of batteries with your 18V power tool with the new DCA2203C Battery Adapter. Designed to work with an assortment of 18V tools, you can use the DCB201 and DCB203 20V MAX Lithium-Ion batteries without having to spend money on new tools.
  • Allows for use of 20V MAX batteries in most 18V tools
  • Requires use of 20V MAX charger
  • Adapter will not fit into DEWALT 18V Chargers
  • Use only with compact Dewalt batteries DCB201 and DCB203
  • 20V MAX Lithium-Ion Battery Adapter for 18V Cordless Tools - DCA1820
  • (2) 20V MAX 2.0 Ah XR Lithium-Ion Batteries - DCB203
  • 12V/20V MAX Lithium-Ion Battery Charger
Compliance and Restrictions
warning: This product can expose you to Lead, which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to


Series: 20V MAX
Cordless: Yes
Length: 13 in.
Width: 4 in.
Height: 12.5 in.
Weight: 3.41 lbs.
Battery Amp Hours: 2 Ah
Battery Style: Slide
Battery System: 20V MAX
Battery Type: Li-Ion
Compatible Chargers: 20V MAX charger
Compatible Models: DCB201, DCB203
Recharge Time: 1 Hour 30 Minutes
Voltage: 20V



4.0 / 5.0
59 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (31)
No, I would not recommend this to a friend (1)
Powerful (17)
Easy To Use (15)
Value (11)
Battery Longevity (if applicable) (7)
Short Run Time (if applicable) (1)
Best Uses
Large Projects (10)
Frequent Use (9)
Home Repair (7)
Small Projects (6)
Great Idea, POOR Execution
The adapter is unnecessarily bulky and nearly impossible to get free from the tool. The easiest way is to grab the tool between your knees and push the locking tabs in with both thumbs and rock it out. The clips are poorly designed, sometimes I can't get them to release. The batteries, when new and fresh would not hold a full charge (3 indicator lights) When fully charged on the included charger, the indicator showed only 2 lights. They were stamped as manufactured within 1 month of purchase, and self discharge within a day or two sitting on the shelf. They looked like a good way to get the longer life Li-ion batteries for my (7) 18V Dewalt tools. The 4+ amp batteries do fully charge (3 LED's light up) and don't discharge sitting on a shelf in a temperature controlled environment.
August 22, 2019
Originally posted at
Did the job for me
Every single tool I own are DeWALT 18v. I wasn’t able to find a replacement 18v so I purchased the kit. Yes, the adapter is extremely tight so it was difficult to snap into place. Well it was just as difficult to release. I would rather it be snug than falling out during use. My point, it’s a positive safety feature for me. The biggest advantage for me is the fact that I don’t have to buy ALL new tools, when the ones I own work perfectly fine.
This review was collected as part of a promotion
July 1, 2019
Originally posted at
Better be tough.
I purchased this just a little over a year ago and love the concept but to switch the adapter part from tool to tool is so difficult that if I don't have large channel locks to push the release tabs I can't get the part out to switch to another tool.
An unfortunately one of the battery's is failing already.
I quit buying dewalt years ago because of their batterys never held a charge well and before long they wouldn't take any charge so I switched brands .

My son just purchased a lot of there battery operated tools and I saw assembled in usa sticker on one of the tools and I like that and even if not all there tools aren't made here or assembled here at least it's more then any of the other brands can say. I was going to switch to dewalt line but I am concerned about the reliablety of there batterys.
But I am impressed buy Dwelt of at least supporting our country where and when they can and that means a lot to me.
This review was collected as part of a promotion
June 29, 2019
Originally posted at
nice light battery but doesn't hold a charge
I bought 2 of these 20V drills but after using them for an hour or so, they lose their speed. I keep having go change the batteries and its a pain. I like DeWalt tools and own quite a few but this model drill is a disappointment. The charger is a little awkward to load with one hand, it takes 2 and still a bit awkward.
June 27, 2019
Originally posted at
Great, but with limits.
At first look this is a great option. I have 5 different tools which this works with and yes the adaptor is difficult to get out and if you leave the battery inside when not in use it will discharge. But these are simple issues to deal with, just take the battery out when not in use and buy an additional one so you don't have to switch them out as much. I have two of them for 5 tools.
However, the adaptor limits the power going through it and shuts the tool down for a couple of seconds and then comes back. This gets quite irritating when you trying to use the tool under high torque conditions. My screw gun, sawsall and hammerdrill all exibit this behavior. My screw gun(DC668) and Circular Saw(DW936) my favorite tools to use really bring this out. When the tool starts to really draw power under heavier torque conditions they constanly cut out. If you put one of the stock 18v XR batteries back in it, the tools work without flaw. Its not the 20 max batteries either because it does this on all 4 of them.

This adaptor should have performed equal to or better than the 18v nicad batteries, but the performance drop is just simply not worth the price.
June 26, 2019
Originally posted at
Great fit my old Black and Decker
I bought this for my son and it works great. I am glad the people at dewalt is head of the curve.
This review was collected as part of a promotion
June 25, 2019
Originally posted at
Yes the adapter is hard to remove but..,,,
I love this adapter because I can still use my old set of tools. Sure it’s hard to remove and the big burly man said it takes him 3 minutes to get it off. Well over time it loosens up and isnt so hard to remove. If a girl like me can remove it I’m sure you men can.... js... I love it!
March 31, 2019
Originally posted at
difficult to remove
bought one and after about six months power seems to dissipate very quickly. does not recharge completely. constantly
March 6, 2019
Originally posted at
Impossible to remove
I bought this product only because there were no 18-volt replacement batteries available anywhere locally. Was informed by the salesperson at Lowe's that DeWalt would no longer be manufacturing 18-volt replacements and that I would have to buy the 20-volt with the adapter and new charger. The new 20-volt seems to have less power and run time than a comparable new 18-volt. More importantly, the adapter design is flawed. It is virtually impossible to remove from the tool even after removing the battery first. My guess is DeWalt is forcing consumers to purchase an adapter for each tool. Not exactly a customer first policy.
March 3, 2019
Originally posted at
Don't BUY this Battery kit
This battery will not hold a change for more then 2 days on the tool. DeWalt should replace it for free. No Q!!!!!
February 22, 2019
Originally posted at

Questions & Answers

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Browse 9 questions Browse 9 questions and 10 answers
The package says not to be used with Dc970 and dc579, which are drill/drivers. Anyone know why? Can the motor not withstand 20v?
Busy guy in GSO on May 8, 2016
BEST ANSWER: Please contact DeWalt directly at 800-433-9258 for technical assistance
Can I use the 4 and 5 amp hour lithium Ion batteries with the new 18V adapter?
Ted on Nov 26, 2017
BEST ANSWER: Yes. You can use any 20v battery
Why won't my 20v max adapter dca2203c work with any of my 18v tools ?
A shopper on Jan 2, 2017
BEST ANSWER: Make sure batteries are fully charged, batteries are locked fully on adapter and red Cap is off top of adapter.
Will this work with 18 volt DC9096 batteries?
Dennis on Mar 15, 2016
BEST ANSWER: No, this kit is for use only with compact Dewalt batteries DCB201 and DCB203.
Can this be used with the DC608 brad nailed?
A shopper on Mar 9, 2018
BEST ANSWER: Yes it should work just fine with the adapter for the 20 volt battery
will this fit my DCD775KL?
TONYV on Apr 3, 2017
BEST ANSWER: It should fit any tool that will accept the older 18V. battery
Will this fit in a Black and Decker Firestorm?
ED S on Jan 30, 2017
BEST ANSWER: No,they are not compatible.
Can you charge a 20 volt battery in an 18 volt charger using the adapter?
CaptainD on May 25, 2016
BEST ANSWER: NO. 20v batteries requires a 20v charger.
will it work with dc9099 ?
A shopper on Mar 11, 2017


Dewalt Accessories Warranty

The warranty on new DEWALT accessories is as follows:

DEWALT offers a 30-day money back guarantee on all DEWALT accessories, except for pressure washer accessories. DEWALT accessories are fully guaranteed against defects in material and workmanship. The warranty does not cover misuse of product or normal wear and tear.