![]() DeWalt’s AdapterĪ lot of tradespeople and regular users grow attached to their tools. ![]() They’re doing this to transition towards their more recent 20v batteries and tool models.Īs that transition goes on, DeWalt has offered its 18v tool owners a little bit of a lifeline in the form of a neat little adapter. You see, the company is gradually phasing out its lineup of 18v products. However, there are a few crucial things to understand about this brand. So, you can’t connect the 20v battery to an 18v tool without the attachment.Īt first glance, it can seem a bit confusing as to why DeWalt would make it so difficult to use tools and batteries from within the same brand. Unfortunately, the 18v and 20v batteries have very different terminals on them. DeWalt has made that somewhat possible, though you’d need first to purchase an additional attachment available only for their 18v tools. Let’s suppose you’d like to enjoy some interchanging between DeWalt batteries and tools. The company has not made its tools and batteries universal across the board, so crossing that gap isn’t as straightforward as most people would hope. But, unfortunately, that’s only true to a very limited extent. Yes, in some cases, DeWalt’s 18v and 20v batteries are interchangeable. Are 18v And 20v DeWalt Batteries Interchangeable? This guide will unpack everything you need to know about DeWalt’s 18v and 20v systems and where they’re heading in the future. All of this is only possible if you have DeWalt’s battery adapter, as the 18v and 20v systems have different connectors. The same is true with the chargers for those batteries, as well. You can use 20v batteries on 18v tools, but not the other way around. Yes, DeWalt’s 18v and 20v are somewhat interchangeable, but minimally. Plus, they offer several batteries in the 18v and 20v categories. The adapter also will not work with FlexVolt batteries.DeWalt is known worldwide for its wide selection of power tools. They do, however, give an amply large list of exceptions-likely for some of the reasons stated above. It lets you use 20V Max batteries in most of their 18V tools. As an example, the DeWalt DCA1820 battery adapter ( $39.99) claims compatibility with most DeWalt 18V tools. Just to cover our bases-yes, we know some battery adapters work without any issues. While a manufacturer may not know whether or not you used third-party batteries with their product, you still risk voiding a warranty if or when they find out. It can even shorten the lifespan of the tool. That can present a problem and run the tool hotter than expected. If a tool cannot communicate properly to a battery pack, you can end up in a situation where it asks for too much power. Manufacturers don’t like when you bypass the safety communication protocols built into either their batteries and/or tools. Using a tool with third-party battery adapters can have a similar effect. Bounce that drill off a roof onto concrete and you’re unlikely to get it serviced under the warranty. 3 – Potentially Voiding the Manufacturer’s Warrantyīelieve it or not, manufacturers actually care about how you use their tools and batteries. Nobody enjoys either a dead battery or a burned-up tool. Now you’ve created a potential “brick” pack that can no longer take a charge. What’s more-if a lithium-ion battery is “dumb” because the tool is smart, then putting it on a “dumb” tool means you can now drain the pack down below its nominal level. In both cases, all of the built-in protection that keeps both the tool and the battery from going so far that it damages itself is gone. Unfortunately, when you bypassed it with a battery adapter or voltage converter, you likely took away its ability to protect itself. Your car is most likely going to shut itself down before permanent damage occurs, and your cordless tool does the same. Just like the battery adapter, you’ve bypassed the electronic communications to do so. You’re just telling the tool to push the gas pedal farther. The same thing goes for these voltage boosters. See how long it takes for your temperature gauge to rise and idiot lights to illuminate. Tool battery adapters largely ignore the lines that govern safe use of a tool. Yes, we can push the tool and battery beyond what they’re rated for, but not for long and not without consequences. Just like the car, there’s an optimal operating range. This comes from extreme heat production in the motor and/or pack. ![]() Driving the motor beyond what it is designed to maintain will most likely result in failure.
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