---
product_id: 26217766
title: "DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C)"
brand: "dewalt"
price: "R$3236"
currency: BRL
in_stock: true
reviews_count: 8
category: "Dewalt"
url: https://www.desertcart.com.br/products/26217766-dewalt-20v-max-battery-adapter-kit-18v-to-20v-2
store_origin: BR
region: Brazil
---

# Adapts 20V MAX batteries to most 18V tools 2x 20V MAX XR Li-Ion 2.0Ah batteries Fast 90-min charger included DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C)

**Brand:** dewalt
**Price:** R$3236
**Availability:** ✅ In Stock

## Summary

> 🔧 Power up your legacy tools with next-gen batteries—because upgrades shouldn’t mean starting over!

## Quick Answers

- **What is this?** DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C) by dewalt
- **How much does it cost?** R$3236 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/26217766-dewalt-20v-max-battery-adapter-kit-18v-to-20v-2)

## Best For

- dewalt enthusiasts

## Why This Product

- Trusted dewalt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Compatibility:** Designed for most 18V tools (excluding select models), ensuring broad usability with clear guidelines.
- • **Ready Out of the Box:** Complete kit with 2 high-capacity batteries, adapter, and fast charger—get back to work without delay.
- • **Lightweight & Balanced:** Lithium Ion batteries reduce weight for better tool handling and less fatigue during long projects.
- • **Future-Proof Your Toolkit:** Extend the life of your trusted 18V tools with modern 20V battery tech—stay ahead without replacing gear.
- • **Power Upgrade, No Tool Swap:** Seamlessly use 20V MAX batteries on your 18V DEWALT tools and unlock extended runtime and power.

## Overview

The DEWALT 20V MAX Battery Adapter Kit (DCA2203C) includes two 2.0Ah 20V MAX XR Lithium Ion batteries, a 12V/20V MAX charger, and an 18V-to-20V adapter that enables most DEWALT 18V tools to run on 20V MAX batteries. This kit revitalizes older 18V tools with modern battery technology, offering faster charging and lighter weight for improved performance and convenience. Note: Compatibility excludes certain 18V tools and chargers; adapter requires 20V MAX chargers.

## Description

The DEWALT DCA2203C 20V MAX Battery Adapter Kit for 18V Tools allows for use of 20V MAX batteries in most DEWALT 18V Tools. This adapter requires the use of 20V MAX Chargers - this will not fit in DEWALT 18V Chargers. This kit includes two 20V MAX XR Lithium Ion batteries, and 20v charger so you can be ready to convert immediately. Use with DCB201, DCB203, DCB203BT compact batteries. Do not use adapter with premium batteries (DCB200, DCB204, DCB204BT, DCB205) in 18V Compact drills DC970, DC759. Includes: (1) 18V - 20V MAX Adapter, (2) DCB203 20V MAX XR Lithium Ion Batteries (2.0Ah), 12V/20V MAX Charger. WARNING: THE ADAPTER IS NOT COMPATIBLE WITH ALL DeWALT TOOLS. The 20V Max* Li-Ion Battery Pack Adapter for 18V NiCd tools is NOT COMPATIBLE with 18V DeWALT radios, 18V DeWALT nailers, DC020 or DC022 Worklights, nor the DCS370 Bandsaw. For the DC500 Vacuum, the DW074 and DW079 Rotary Lasers, the adapter is functional but the tools’ battery doors will not fully close.

Review: Works Great! - Thank you Dewalt for making this adapter. This is a great adapter that allows you to use the newer 20V battery in your 18V tool. I purchased this to use on my DC725 Hammer Drill/Driver. All you do is plug this adapter into your 18V tool and insert a 20V battery into the adapter. It’s as easy as that. I was a little hesitant to purchase this at first because I read in some reviews where people had to make modifications to get it to work. One reviewer said he had to grind off some tabs (even showed a picture of the modification) to get it to engage into the tool. I didn't find this necessary for my particular application. Another reviewer said he had to grind off some of the material on the release tabs that holds the adapter into the tool (in the case of an 18V battery, these tabs hold that battery in the tool). Again, I didn't find this necessary. I do have to admit that the first time I tried to remove the adapter it didn't appear to want to release. I moved my fingers closer to the edge where the adapter meets the tool and pushed a little harder and it released. I inserted and removed the adapter five more times and now I can remove it with ease -- maybe it needed to work out some burrs leftover from the molding process. Since the Li-Ion battery/adapter combo is lighter than the Ni-Cd battery that came with my drill, the balance of the tool is a little off -- the tool is a little more top heavy, but not a lot and not enough to be annoying. The produce description says that this adapter is not compatible with all 18V tools, but it doesn't list which ones it's not compatible with. Here's what's currently listed in my instruction manual: all 18V radios, 18V nailers, DC020 or DC022 worklights, and the DCS370 Bandsaw. For the DC500 Vacuum, the DW074 and DW079 Rotary Lasers, the adapter is functional but the tool's battery door will not fully close. It also says to not use the premium Dewalt batteries in the DC970 or DC759 drills. If I had anything negative to say about this adapter, it's that I'm still trying to figure out why Dewalt angled the bottom of it. When I sit the tool down, the chuck end of the drill points up in the air about 10 degrees. Then there's the color difference. The yellow used in the battery matches the tool. The Yellow in the adapter is slightly more orange in color, so it doesn't match the tool or battery. But neither of them are deal breakers. I bought this as a kit, so I also received two batteries and a charger. The charger will charge a completely dead battery in about 90 minutes. Overall I'm very happy with this purchase.
Review: New life for old 18V tools - Still use my 18v Dewalt tool set. The 18v batteries were getting harder to find and expensive for OEM. So, decided to try this adapter kit. Work great with a circular saw and the drill so far. Tools spin right up to full power again. Batteries are small and lightweight. Easy to snap in to charge or use. Great way to extend the life of some tools with a better battery source.

## Features

- ADAPTS 20V MAX* BATTERIES TO MOST 18V TOOLS: See description for full DEWALT 18V tool compatbility information
- KIT INCLUDES: (2) DCB203 20V MAX* XR Lithium Ion Batteries (2.0Ah), (1) 12V/20V MAX* Charger, and (1) 18V - 20V MAX* Adapter
- COMPATIBLE WITH 18V COMPACT DRILLS: Do not use adapter, 18V Compact Drills, and premium batteries (DCB200, DCB204, DCB204BT, DCB205) together
- NOT COMPATIBLE WITH 18V CHARGERS: Adapter requires the use of DEWALT 20V MAX* Chargers
- NOT COMPATIBLE WITH 20V/60V FLEXVOLT BATTERIES

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B016K1UEPS |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #101,011 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #934 in Cordless Tool Battery Packs |
| Certification | CE |
| Color | Black/yellow |
| Customer Reviews | 4.5 4.5 out of 5 stars (7,598) |
| Date First Available | October 13, 2015 |
| Description Pile | 20V MAX* Lithium Ion |
| Finish | Brushed |
| Head Style | Flat |
| Included Components | (1) 18V - 20V MAX* Adapter, (2) DCB203 20V MAX* XR Lithium Ion Batteries (2.0Ah), (1) 12V/20V MAX* Charger |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2.97 pounds |
| Item model number | DCA2203C |
| Manufacturer | Black & Decker |
| Material | Blend |
| Measurement System | Metric |
| Part Number | DCA2203C |
| Pattern | Kit |
| Power Source | Corded Electric |
| Product Dimensions | 13 x 4 x 12.5 inches |
| Shape | Rectangular |
| Size | 20V |
| Style | Battery Adapter Kit |
| Voltage | 20 Volts |
| Warranty Description | 3 year limited warranty |

## Product Details

- **Battery Cell Composition:** Lithium Ion
- **Brand:** DEWALT
- **Number of Batteries:** 2 Lithium Ion batteries required. (included)
- **Recommended Uses For Product:** Power Tool
- **Unit Count:** 1.0 Count

## Images

![DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C) - Image 1](https://m.media-amazon.com/images/I/71U92PYf9cL.jpg)
![DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C) - Image 2](https://m.media-amazon.com/images/I/71Cj1FzbRgL.jpg)
![DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C) - Image 3](https://m.media-amazon.com/images/I/71v+2hgxaIL.jpg)
![DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C) - Image 4](https://m.media-amazon.com/images/I/91Jh71XvqFL.jpg)
![DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C) - Image 5](https://m.media-amazon.com/images/I/71JnkezR4zL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Does this adapter drain the battery while it's sitting on the shelf? I read in some reviews that it can drain the battery.**
A: Li-ion batteries have a circuit board (called a PCM) which monitors the voltage of each cell while charging, discharging, or just sitting. If the voltage in any cell goes too low or too high the PCM will not allow charging. The PCM needs a small amount of current to do this job (often this current is pulled from 1 cell but that doesn't really matter). Therefore the battery can potentially become "bricked" if the battery sits on the shelf too long. I try to always fully charge these batteries before placing them into storage and if stored long term recharge every 6 months or so to avoid the battery going to "sleep".

**Q: Does this adapter reduce the voltage going into the drill ?**
A: The working voltage of both the 18v and the 20v battery is 18 volts under load and 20 volts while not under load. Both batteries are essentially the same voltage under both conditions.

**Q: Does with work with the larger batteries even though description says compact batteries only?**
A: When I read this specific limitation, "Do not use adapter with premium batteries (DCB200, DCB204, DCB204BT, DCB205) in 18V Compact drills DC970, DC759." it is written in a way that you should not use premium batteries with the two compact drills mention (DC970 & DC759). I have used this adapter with 2 AH, 3 AH, and 5 AH batteries. Each different size battery provides power to the tool and does not appear to affect the function. It is worth mentioning that I do not own the two compact drills noted above. Also, the adapter will have issues with the 18v circular saw. Even with the slimmest 2 AH battery pack, the circular saw will not be able to cut at its full depth due to the battery pack making contact with the surface of the wood. This will only affect you if you plan to make cuts longer than the base (shoe) of the circular saw at full depth.

**Q: Will these batteries & adapter work with my dw959 drill and dw936 circular saw?**
A: As long as it takes Ni cad batteries it will work. The only down fall of this adapter is that u can't leave your batteries plugged on the tool. Someone in the adapter drains the lithium batteries. Other than that it's a good product

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Great!
*by A***E on June 7, 2017*

Thank you Dewalt for making this adapter. This is a great adapter that allows you to use the newer 20V battery in your 18V tool. I purchased this to use on my DC725 Hammer Drill/Driver. All you do is plug this adapter into your 18V tool and insert a 20V battery into the adapter. It’s as easy as that. I was a little hesitant to purchase this at first because I read in some reviews where people had to make modifications to get it to work. One reviewer said he had to grind off some tabs (even showed a picture of the modification) to get it to engage into the tool. I didn't find this necessary for my particular application. Another reviewer said he had to grind off some of the material on the release tabs that holds the adapter into the tool (in the case of an 18V battery, these tabs hold that battery in the tool). Again, I didn't find this necessary. I do have to admit that the first time I tried to remove the adapter it didn't appear to want to release. I moved my fingers closer to the edge where the adapter meets the tool and pushed a little harder and it released. I inserted and removed the adapter five more times and now I can remove it with ease -- maybe it needed to work out some burrs leftover from the molding process. Since the Li-Ion battery/adapter combo is lighter than the Ni-Cd battery that came with my drill, the balance of the tool is a little off -- the tool is a little more top heavy, but not a lot and not enough to be annoying. The produce description says that this adapter is not compatible with all 18V tools, but it doesn't list which ones it's not compatible with. Here's what's currently listed in my instruction manual: all 18V radios, 18V nailers, DC020 or DC022 worklights, and the DCS370 Bandsaw. For the DC500 Vacuum, the DW074 and DW079 Rotary Lasers, the adapter is functional but the tool's battery door will not fully close. It also says to not use the premium Dewalt batteries in the DC970 or DC759 drills. If I had anything negative to say about this adapter, it's that I'm still trying to figure out why Dewalt angled the bottom of it. When I sit the tool down, the chuck end of the drill points up in the air about 10 degrees. Then there's the color difference. The yellow used in the battery matches the tool. The Yellow in the adapter is slightly more orange in color, so it doesn't match the tool or battery. But neither of them are deal breakers. I bought this as a kit, so I also received two batteries and a charger. The charger will charge a completely dead battery in about 90 minutes. Overall I'm very happy with this purchase.

### ⭐⭐⭐⭐⭐ New life for old 18V tools
*by G***E on July 26, 2025*

Still use my 18v Dewalt tool set. The 18v batteries were getting harder to find and expensive for OEM. So, decided to try this adapter kit. Work great with a circular saw and the drill so far. Tools spin right up to full power again. Batteries are small and lightweight. Easy to snap in to charge or use. Great way to extend the life of some tools with a better battery source.

### ⭐⭐⭐⭐⭐ Great kit but not recommended for older full sized 18V Dewalt Drill Drivers.
*by G***R on April 3, 2018*

Review of DEWALT DCA2203C 20-Volt MAX Battery Adapter Kit for 18-Volt Tools. Have older DC759KA 18v Compact Drill Driver, still like brand new. Came with hard case for transporting/storing drill driver, charger & spare battery pack. Still today a very nice 1/2 drill driver. Was time to purchase replacement cells of the original 18V NiCads. Thought I would upgrade to this new Li-Ion package. Would work well for those who do not store or transport drill driver in hard case. 3 issues that I ran into with this conversion kit. 1. Does not cover entire bottom of old style larger NiCad packs, did not like the large open areas on bottom. 2. With conversion kit in place, although lighter, not a good balance for my Dewalt drill driver. Being smaller in design, makes drill top heavy when placing on countertop, easily tips over. Although heavier, the original NiCad design provides perfect balance when setting drill driver down with chuck facing up. Never has tipped over and is perfectly balanced. 3. All Dewalt 20v cells are actually 18v cells, so after looking at specs, nothing gained between NiCads vs the 20v cells included in this package. It is a great product if you intend to take advantage of Li-Ion cells vs NiCads. In my case, I prefer the original balance of the drill, the ability to stand driver up without a balance problem. Fortunately Dewalt still makes the original NiCads so I will return this kit and purchase the old style NiCads. Yes they are more to keep an eye on when compared to the newer Li-Ions. Trade off is the NiCads will start to delete gradually when using the drill. Thing I do not like about Li-Ion is it gives no warning when depleting unless you purchase cells with the LED indicators. Honestly, did not like the feel of this conversion kit on my DC759KA which is a 1/2" chuck, with 2 speeds of power. With good NiCads, the torque is the same as the Li-Ion cells. This kit would work well in the smaller compact 18v drill drivers. My DC759KA was made in 2005 and although called compact, is more like a full size with considerable more torque than todays smaller motor and sized Dewalts. Also purchased the 20V compact kit which is for smaller projects where a smaller lower capability unit is desired. I will still use the old full size compact for larger jobs.

## Frequently Bought Together

- DEWALT 20V MAX Battery Adapter Kit, 18V to 20V, 2 Batteries and Charger Included (DCA2203C)
- DEWALT Battery Adapter 18V to 20V, For Drills, Sanders and More, Charger Not Included (DCA1820)
- DEWALT 20V MAX 5 Ah Lithium Ion Battery 2-Pack (DCB205-2)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-27*