That’s the maximum voltage the battery attains, hence, 20V Max. When you fully charge the battery, a voltmeter registers 20 volts. The reason DeWalt uses 20V Max for that line of lithium-ion cordless tools isn’t because they have a higher voltage than 18V tools. DeWalt 20V Max Vs XR – Decoding the Branding 18V was Ni-Cad and 20V Max was lithium-ion. Since they needed to continue supporting users on the 18V platform, the difference in branding made it easier to determine which batteries worked with which tools. Depending onĬhemistry and heat dissipation, most 18650s and 21700s cycle at least 1000-1500 times without a problem and I wouldn't put it past their marketing guys to pretend it's lower to sell the powerstack prismatic cell batteries, now that they're pushing those.The other thing they did was switch the branding from 18V to 20V Max. Lastly, as best I can tell, their supposedly 500 cycle cylindrical batteries are rated way below actual usage. ![]() I guess that's fine for light-use, but for contractors/serious users they'll just be charging more often for (imho) negligible performance boosts. Sure they can theoretically cycle more times than the cylinders, but they have less amp-hours so they run out of juice faster, even if you can eek a bit more performance out of them during use. Instead of simplifying or making it more logical, they opted to add "powerstack" batteries that are nothing more than li-ion polymer pouches instead of 18650 or 21700 cylinders. So here I am trying to grok size/duration/performance in their 20v / 60v platforms. Note that Atomic and XR are sometimes almost identical like their multitool version.Ī full year later and Dewalt still refuses to collapse some of their (mostly) redundant lines into a more coherent and understandable battery structure. Generally weaker than XR (usually by having less rpm, oscillation etc). Atomic = Usually built for smaller/portable size and usually have smaller motors.They are programmed to be gentle to protect the battery even if the battery is large enough to sustain high current draw. ![]() If battery sustains it, large power draw is maintained and no software throttling down happens. This also detects battery internal resistance like the Flexvolt Advantage. Will work on Flexvolt batteries but at 20v mode and will also work on any regular 20v batteries. It is Lowe's version of Flexvolt Advantage. Power Detect = It's basically the same as Flexvolt Advantage but seem to be less aggressive as other tool reviews have hinted.Hence it works better on bigger batteries like Flexvolt Batteries or even the 20v 8Ah. It has a feature that will continue to draw more power if internal resistance is sustained by the battery. Flexvolt Advantage = Will work on Flexvolt batteries but at 20v mode and will work on any regular 20v batteries.Flexvolt = Will work on Flexvolt batteries at 60v mode only.Max XR tools - Takes 60V Flexvolt batteries and runs at 20V, also takes 20V Max XR batteries and runs at 20V Power Detect tools - Takes 60V Flexvolt batteries and run at 20V, also takes 20V Max XR batteries and runs at 20V (boosted if a larger 20V Max XR battery?) Just want to clarify how all of these lines work before I move forward with a saw and sawzall.Ħ0V Flexvolt Batteries - work in Flexvolt, FV Advantage, Power Detect, and XR linesĢ0V Max XR Batteries - work in FV Advantage, Power Detect, XR, but NOT Flexvoltįlexvolt tools - ONLY take 60V Flexvolt batteriesįV Advantage tools - Takes 60V Flexvolt batteries and runs at 20V boosted, also takes 20V Max XR batteries and runs at 20V Turns out I was wrong after discovering all of these separate lines now. ![]() I was under the impression that the batteries in my 20V Max XR drill/impact would be usable in my new grinder as well. So today I went out and picked up a sweet new grinder (DCG418X1) with a 9Ah Flexvolt battery.
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