---
product_id: 24824340
title: "Battery Adapter 18V to 20V, For Drills, Sanders and More, Charger Not Included (DCA1820)"
brand: "dewalt"
price: "¥12891"
currency: JPY
in_stock: true
reviews_count: 8
category: "Dewalt"
url: https://www.desertcart.jp/products/24824340-battery-adapter-18v-to-20v-for-drills-sanders-and-more
store_origin: JP
region: Japan
---

# Supports 1.5-5.0 Ah XR batteries Waterproof design 20V MAX* battery compatibility Battery Adapter 18V to 20V, For Drills, Sanders and More, Charger Not Included (DCA1820)

**Brand:** dewalt
**Price:** ¥12891
**Availability:** ✅ In Stock

## Summary

> 🔧 Power up your toolkit with next-level battery versatility!

## Quick Answers

- **What is this?** Battery Adapter 18V to 20V, For Drills, Sanders and More, Charger Not Included (DCA1820) by dewalt
- **How much does it cost?** ¥12891 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/24824340-battery-adapter-18v-to-20v-for-drills-sanders-and-more)

## 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

- • **Built to Endure:** Waterproof construction ensures reliable performance on any job site, rain or shine.
- • **Lightweight & Compact:** At just 7.8 ounces and a sleek rectangular design, it fits perfectly in your toolbox without bulk.
- • **Peace of Mind Warranty:** Backed by a 3-year limited warranty, because your tools deserve dependable gear.
- • **Broad Battery Compatibility:** Works with 1.5 Ah to 5.0 Ah XR lithium-ion batteries to keep you powered longer.
- • **Maximize Your Power Arsenal:** Seamlessly use 20V MAX* batteries in your 18V DEWALT tools for ultimate flexibility.

## Overview

The DEWALT DCA1820 Battery Adapter enables the use of 20V MAX* lithium-ion batteries (1.5 Ah to 5.0 Ah XR) in most 18V DEWALT tools, enhancing tool compatibility and convenience. Featuring a waterproof design and lightweight build, this adapter is a durable, space-saving solution for professionals seeking to streamline their power sources. Note: Charger not included; not compatible with FLEXVOLT or premium DC970/DC759 batteries.

## Description

Add versatility to your toolbox with the DEWALT 18V to 20V Adapter that allows for the use of 20V MAX* batteries in most 18V DEWALT tools.

Review: ⭐⭐⭐⭐⭐ Saved My Old Tools — Works Perfectly With 20V Batteries - This adapter has been an absolute lifesaver. I have a full collection of older DeWalt 18V tools, and I figured I would eventually have to toss them or sell them for almost nothing. Someone mentioned this adapter, and I decided to give it a shot. Now I can use all my 20V batteries in my old tools, and they actually run stronger than they did before. The added weight is minimal and the Battery life is far better than the tools original batteries. Everything fits securely, performance is great, and it’s given a second life to tools I’ve had for years. If you have older DeWalt gear, this adapter is a must. Totally worth it.
Review: Satisfied - Works as it should !

## Features

- Allows for use of 20V MAX* Lithium Ion batteries in most 18V DEWALT tools
- Requires use of 20V MAX* DEWALT charger
- Do not use with premium DEWALT batteries in DC970 or DC759 tools
- This Adapter will not work with 20V/60V FLEXVOLT Batteries
- The DCA1820 adapter is compatible with the following batteries only: 1.5 Ah, 2.0 Ah, 3.0 Ah, 4.0 Ah, and 5.0 Ah XR

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Black & Decker |
| Part Number | DCA1820 |
| Item Weight | 7.8 ounces |
| Product Dimensions | 5.6 x 3.18 x 7 inches |
| Item model number | DCA1820 |
| Batteries | 1 Lithium Ion batteries required. |
| Is Discontinued By Manufacturer | No |
| Size | 20V |
| Color | 20V |
| Style | Adapter w/o 20V batteries |
| Finish | Brushed |
| Material | Blend |
| Pattern | Solid |
| Shape | Rectangular |
| Power Source | Corded Electric |
| Voltage | 20 Volts |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Measurement System | English |
| Mounting Type | Tabletop Mount |
| Special Features | Waterproof |
| Included Components | (1) 18V - 20V MAX* Adapter |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Cell Type | Lead Acid |
| Battery Capacity | 12 Amp Hours |
| Warranty Description | 3 year limited warranty |

## Product Details

- **Brand:** DEWALT
- **Connector Type:** Component
- **Compatible Devices:** DEWALT 18V tools
- **Compatible Phone Models:** Apple iPhone XR
- **Included Components:** (1) 18V - 20V MAX* Adapter
- **Special Feature:** Waterproof
- **Color:** 20V
- **Input Voltage:** 60 Volts
- **Number of Items:** 1
- **Output Current:** 2 Amps

## Images

![Battery Adapter 18V to 20V, For Drills, Sanders and More, Charger Not Included (DCA1820) - Image 1](https://m.media-amazon.com/images/I/5171Xa+KTOL.jpg)

## Available Options

This product comes in different **Size Name, Style Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ Saved My Old Tools — Works Perfectly With 20V Batteries
*by N***E on November 8, 2025*

This adapter has been an absolute lifesaver. I have a full collection of older DeWalt 18V tools, and I figured I would eventually have to toss them or sell them for almost nothing. Someone mentioned this adapter, and I decided to give it a shot. Now I can use all my 20V batteries in my old tools, and they actually run stronger than they did before. The added weight is minimal and the Battery life is far better than the tools original batteries. Everything fits securely, performance is great, and it’s given a second life to tools I’ve had for years. If you have older DeWalt gear, this adapter is a must. Totally worth it.

### ⭐⭐⭐⭐⭐ Satisfied
*by R***R on January 6, 2026*

Works as it should !

### ⭐⭐⭐⭐⭐ Works Great On Most 18V DeWalt Power Tools
*by T***. on May 2, 2025*

These adapters are a great way to extend the lives of 18V DeWalt tools by standardizing on the 20V platform. I have an old but reliable set of 18V DeWalt tools and several newer 20V tools and maintaining two different battery platforms was not ideal. These adapters allow all to work with one battery type and one charger. There are two downsides to be aware of. First, the adapters are easy to install but can be difficult to remove so getting one for each tool is best. Also, the adapter increases the overall working size of the tool making it slightly heavier. This is not a huge problem in most cases but the extra length can render a circular saw unusable at some cut depths. This is because the battery may stick out too far to clear the workpiece. I use the 2AH battery to get around this problem on my particular saw. Other models may not require any extra attention.

## Frequently Bought Together

- DEWALT Battery Adapter 18V to 20V, For Drills, Sanders and More, Charger Not Included (DCA1820)
- DEWALT 20V MAX 5 Ah Lithium Ion Battery (DCB205)
- DEWALT 20V MAX Battery, Compact 2.0Ah Double Pack (DCB203-2)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-06*