Dewalt 20 V Max Lithium-Ion Battery Adapter

Article#00275961 Model#DCA1820 Format18-20V
Dewalt 20 V Max Lithium-Ion Battery Adapter
 

Description

This practical adapter allows you to use selected DeWalt 20 V Max lithium-ion slide pack batteries with most DeWalt 18-Volt power tools. This lets you get the most out of your toolbox by allowing you to use tools from previous generations with the new cell technology. This adapter requires the use of 20 V Max chargers and will not fit in DeWalt 18 V chargers.

Technical specifications

Component :Plastic Color :Yellow/black Warranty :3-year limited - 1-year free service Height :7" Width :3.2" Length :5.6" Utilization :To use 20V MAX lithium batteries on 18V NiCd or NiMg tools

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Dewalt 20 V Max Lithium-Ion Battery Adapter is rated 3.1 out of 5 by 61.
Rated 1 out of 5 by from Leakage if left attached can ruin the battery I, too, have discovered that DeWalt batteries left attached to this adapter will run completely down overnight. Given DeWalt's own statement that "You should stop using a battery as soon as you feel a substantial decrease in power from the tool. Completely running down a battery may damage it" (https://www.dewalt.com/dewalt-dna/featured-articles/best-practices-for-battery-life ), this dies-while-attached behavior directly contributes to the ruination of the battery. If you suspect you will occasionally forget to detach the battery when done using the tool then this is probably not the device for you, especially given the cost of replacement batteries.
Date published: 2019-03-09
Rated 1 out of 5 by from Another Dewalt dud I've had this kit for about a week. Charged both batteries before using" and each tool ran ok the first (short) time I ran them. The next day, one tool was totally dead and the other ran a very short time. After reading a review, I see that leaving the battery in the adapter drains it. This makes the kit useless in my opinion. The last regular 18v batteries I bought had a short life. So this makes two purchases in a row that lead to disappointment. As another reviewer mentioned, they also don't fit the tools well. Darn near impossible to remove. I don't suspect Dewalt will do anything about this.
Date published: 2018-01-30
Rated 3 out of 5 by from Needs warning to not store battery in adapter I bought this to enable me to continue using some of the older tools without buying more of the older style batteries. For that, it works great. However, it does not have any warning the connecting the battery to the adapter will drain the battery when not used. This is a surprise. Now I always remove the battery when finished using the adapter. I think this is a surprise and a negative for this product since leaving the battery attached to the tools does not drain the batteries.
Date published: 2017-12-07
Rated 4 out of 5 by from Keeping my old tools alive! I am so happy I picked up this adaptor! I had a nice set of old 18v drills and an impact, but the old batteries just couldn't hold a charge for more than 5 minutes. While I did end up getting a new 20V Max drill and impact, my old tools still had life left in them. Enter this adaptor. It allows me to use my new 20v batteries and have back up tools, or have a double set of tools for a big job. The only down side to this adaptor that I have found is the added mass to the tool, but that is a given. The reduced size of the Li-Ion battery pack helps make up for that. I have used this for close to a year now, and have yet to have any troubles with it. [This review was collected as part of a promotion.]
Date published: 2019-11-07
Rated 1 out of 5 by from 18v to 20V upgrade I bought the upgrade kit with adaptor over three months ago. I charged the lithium batteries. Now I finally go to use it and it doesn’t work, a couple times I got power to my drill but intermittent,as if the connection is weak. What a headache. So now it’s back Dewalt to try and understand why the issue!! I’m very disappointed with the product.
Date published: 2018-03-04
Rated 4 out of 5 by from Keeping my old tools alive! I am so happy I picked up this adaptor! I had a nice set of old 18v drills and an impact, but the old batteries just couldn't hold a charge for more than 5 minutes. While I did end up getting a new 20V Max drill and impact, my old tools still had life left in them. Enter this adaptor. It allows me to use my new 20v batteries and have back up tools, or have a double set of tools for a big job. The only down side to this adaptor that I have found is the added mass to the tool, but that is a given. The reduced size of the Li-Ion battery pack helps make up for that. I have used this for close to a year now, and have yet to have any troubles with it. [This review was collected as part of a promotion.]
Date published: 2019-11-07
Rated 5 out of 5 by from Works well. This fits on all of my old 18V XRP tools just fine. I have the hammer drill, impact driver, circular saw, grinder, reciprocating saw, 1/2" impact, and flex light and it works great in all of them. My 90 degree drill won't accept the adapter but I do not think it was ever in an XRP offering and is my only Dewalt cordless tool that is not XRP. The adapter is a little difficult to remove in some tools and is almost impossible to remove if you leave the battery in so it is best to remove the battery first. I just started replacing all of my XRP tools so I only plan on using this while I do that over the next year or so. I am using the DCB205 batteries and the run time seems like about 4 of my old batteries combined, maybe more. It looks odd on the tools and sits at an odd angle but works well so far. None of the larger batteries (6.0ah plus) fit the adapter but the run time is long enough with the DCB205 where having a spare battery would run a tool for a full work day anyway. I noticed a significant improvement in power even over my newer XRP batteries in all of my tools and have not seen any drawbacks besides making the tool overall length longer which makes fitting in tight areas a bit more difficult.
Date published: 2018-02-08
Rated 1 out of 5 by from DIscharges battery. Which tools,batteries work? I have always loved Dewalt tools however, this is the biggest junk Dewalt has ever sold. There should be a buyback on these. The info that Dewalt provides is erroneous as to which tools and batteries work with the unit. Dewalt also doesn't explain that without removal of the battery from the adapter the adapter discharges the battery. Now I have new 6 amp batteries and new fast charger for an adapter that does not work in any of my 18 volt tools.
Date published: 2019-01-06
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