Wow! The DEWALT POWERSTACK 20V 5Ah Battery Testing

DEWALT 20V MAX POWERSTACK 5AH Battery - imp.i284638.net/NKOb2O
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When the 5Ah DEWALT PowerStack battery was announced, we assumed it would be a more compact version of the 5Ah battery. When we purchased the PowerStack battery, we were surprised to see it was as large as any DEWALT battery with 21700 cells. This changed a bit of our thinking as to what DEWALT was doing with the PowerStack line. With such a large 5Ah battery, this thing must be a beast.
As we rolled through our testing, we were excited to see what the PowerStack could do, but when we used it for the first time. WOW. Not only did we get FlexVolt power from the battery, but it is also half the size of a FlexVolt.
Our volt meter does not lie! You can watch the performance of almost all of the DEWALT batteries and see how well the PowerStack stands up to them all.
We threw the FlexVolt 15Ah battery in there to see how well it would perform on a drill. We are very surprised the drill handled all of this abuse without any issues. A Big Thumbs up to the DCD999.
While the 5Ah DEWALT PowerStack is commanding a premium when purchased, this battery will not disappoint. It will give you all the amps you want and still be able to hand out 5Ah of runtime. The DEWALT 5Ah PowerStack is a beast of a battery.

[@thereloadingcraft]

This has got to be hands down the best video of this type I’ve ever seen. Having the live voltage out really shows the output capacity of each battery and brings the testing to a whole new level under load.

[@Surmoka]

The best method could include amperage as well, because you have to multiply it with the voltage to get the power. But measuring amperage through the connections would be very difficult, maybe realistically possible with a shunt resistor.

[@WorkshopAddict]

We have this same test for Milwaukee and Kobalt

[@thereloadingcraft]

@@WorkshopAddict I will here to give it a watch!

[@delosaurasrex732]

How about the Flex 24v tool’s “stack pack” battery vs the Dewalt “power stack”??? Which one is stronger???

[@joshuaking34]

@@delosaurasrex732 Flex should have the advantage based on stated voltage and amp/hours yet I like that DeWalt is taking the time to get these batteries right.

[@Griffinwoodworks]

I’m a Milwaukee guy, and THAT was impressive! I can’t wait until your buddies over at torque test channel get this one on their dyno.

[@WorkshopAddict]

We have that same video out for the Milwaukee batteries.

[@trashes_to_treasures]

I think now the latest it’s time to become a DeWaukee person, like me 💪😎

[@melgross]

Pretty good. Though I’ve noticed in my own drilling that when you hold the drill at a slight angle rather than straight up, as happened here at times, the rubbing of the sides of the bit slow the tool down, and when you get deeper, it can stop. Stopping for a moment and straightening up fixes the problem. If I didn’t already have so many batteries in different sizes, I would buy some Powerstacks, but they’re expensive. Since batteries can last for some time, I suppose I’ll end up waiting for the Powerstack II, which is when mine will be wearing out.

[@georgedavall9449]

The size is surprising, but not too terrible. It definitely puts out the power. Still hard to beat the 6.0/8.0 for power and runtime. It WILL be interesting to see where Dewalt takes this new battery tech!? 👍✌

[@olgajoachimosmundsen4647]

I got a two-pack a couple weeks ago. It cost me 400 bucks, which I needed a few weeks to think about before I pulled the trigger. I was convinced with the promice of longer battery-life, as two 6ah flevolt batteries died out on me recently, plus my regular 5ah is reduced. You should try the battery and compare it with others on either the flexvolt advantage grinder, hole hawg or circular saw

[@Penguin545]

Power stack 1.7 amp 2 pa k on sale today at lowes- $200 comes with free tool up to $230 value.

[@cynic256]

increased run time is a lie. as a matter of fact pouch cells have lower life longevity than cylindrical cells. just look at your phone battery. The only thing powerstack is good for voltage drop, and an immediate push of current vs cylindrical.

[@geoffap0]

The voltage tracking is a great parameter to add in to the physical testing. The older I get the more I want light weight tools that perform. I was hoping the PS 5.0 was going to be smaller than the XR 5.0 but I’ll pick some up next year when they go on sale and see how well they do.

[@plsreleasethekraken]

I would support your boards on both sides with the support reasonably close to where you are drilling so you don't get bending/pinching. It's causing problems for you punching through with the forstner. You could also just set the 4x on the floor and not punch all the way through. It's similar to an unsupported/freehand cut with a circular saw. You'll have problems getting through the last bit of a 2x even though the saw is plenty powerful to do much more than that.

[@Wtf-eva]

Just got my power stack 5ah in the mail and your video showed what it can do without letting it run to figure that out. Thanks and keep it up 👍

[@Nick-iz9zo]

Looking forward to more testing with the 5ah power stack!

[@bobmurray6249]

One of the best showcases to make a determination if one were to invest in the powerstack battery platform in this early timeline. Well done. Subbed

[@WorkshopAddict]

Thanks Bob

[@dianneleetham4895]

Which tools can use on the powerstack battery. The dewalt secutors can they use any batteries also can the powerstack battery be used on this. Thankyou for your help and merry Christmas

[@Nigeria_slime]

Very well done. Disappointing about the 5ah xrs and stuff. Why so bad performing?

[@WorkshopAddict]

I do not believe it is a bad performer. We are askiing that drill to do some serious stuff and the output on the 18650s used in that battery wont do it. All the 21700 batteries were able to do it.

[@benbjr]

Wow Brian, whata amazing video, thanks for sharing, Dewalt power stack technology is very impressive. WorkshopAddicted always with great content, I am a long time subscriber so I can attest that. Thanks

[@randallsensenig1075]

Imagine that 5ah power stack on the new dcf900! What an awesome combo that would be

[@WorkshopAddict]

I have to assume @TorqueTestChannel will be doing that.

[@randallsensenig1075]

@@WorkshopAddict I sure hope so

[@TorqueTestChannel]

You'd have to assume

[@1x4x93]

✅👍

[@MichaelSmith-57]

The DCF900 and the POWERSTACK 5.0AH battery comes in a kit now - the DCF900H1

[@IMPACT-NATION]

Awesome testing and comparisons buddy. You always do a great job showcasing performance of batteries and tools. 💯✊

[@J.Wick.]

Well now. That was impressive. I'll have to see the difference in weight vs the 6/8ah. Otherwise it was very close to those by the sound of it. Size is similar. Hopefully it's significantly lighter.

[@suvijakengr3374]

Support comment from Thailand for your excellent information.

[@austintaylor870]

Thanks, I was second guessing myself getting the 6ah vs the 5 but it looks like I made the right choice.

[@jackofalltrades4091]

finally a review with tools showing the new battery, every other tool channel is doing unboxings

[@vegetarianhunterable]

Very good. Gives a clear understanding of advantage of the PowerStack and how they compare with the regular batteries.

[@alcerz984]

Finally a milwaukee dude thats not stuck in his ways or not fanboying milwaukee. Learn to give credit where its due. Not everything milwaukee makes is the best.

[@Tony-sy7ed]

That was an awesome visual decent equipment very good Picture in Picture 👍🏻

[@WorkshopAddict]

Thank you.

[@joshuaking34]

The industry will be running for the hills when Flexvolt goes to stacked cells.

[@alimuh007]

Redundancy is important when testing equipment and I would suggest more than one of the same drills

[@ronalcorn7039]

Great tests, but the price of the new style battery is off par. On some of my auger style bits, they will ONLY work on speed 2, bore all day long, but at speed 3 they lock up EVERY time. Sometimes it's physics about which speed to use on a drill for a particular bit. I always use 5.0 standard batteries. I can get these standard 5.0 batteries for 40 to 50 bucks a piece, so I can just buy a bunch, vs the $235 of the new style batter for just one. Everything has a special use case though. Keep up the good work.

[@Jonesboy2398]

Did you ever see if your 6ah battery has the newer 21700 cells or the older 20700's?

[@adamhoernemann9554]

I’m disappointed the new 5ah powerstack is the size of the 4 and 6ah batteries. Was hoping they’d be same as old 5ah xr batteries or smaller.

[@TranTek]

6Ah should out perform 8Ah try a few 999 instead of same one or try Milwaukee some of testing result is limited with DeWalt drill i would put them on 2904-20

[@sbjdare1958]

Great video! Do you believe this technology will eventually make it to the flexvolt line or eliminate it?

[@WorkshopAddict]

These will never eliminate the FV line, but they could help it with more Amp output.

[@jtg2259]

The compact 4, 6, and 9 are 21700 cells and are beasts like the power stacks

[@stevegoulding1613]

Nice demo I now know what I’m getting for xmas

[@jcdillon28]

Cool test. I would like to see the test done with other cordless tools. The circle saw, jig saw, and grinder would be cool.

[@ScoundrelzNTwK]

Would like to see which cell/pouch is used to look up the amp rate.

[@dethangelishere394]

the reason your tool stopped with those higher amp batteries was because you were tilting the tool over and the shoulder of the bit was binding on the walls inside the hole. it needs to be held and kept straight. dont let it get cockeyed.

[@shaner.5]

Can you tell us what the cells are in each battery, that would help me choose my next battery, I want 30T's 21700 just not sure which packs have those cells? Please do help the information would go a long ways.

[@mgulick82]

Looks like you've got the DCD998 power detect sitting on the bench, judging from the accessory handle. Did you notice if this new powerstack had similar power in that drill compared to the DCD999?

[@WorkshopAddict]

998 and 999 are the same

[@ttgk8506]

I'm still sticking with the XR batteries due to price. Lowes is currently selling a 3 pack of xr batteries (2ah, 4ah, and an 8ah) for $191 out the door

[@jps101574]

Great test Brian.

[@BlackenedEclipse]

Nice line up but I’m not seeing that 10ah hour XR BATTERY that really brings the beans,I’ve had the best result using this 10ah and also the 6ah packed with 21700 cells

[@harlanborders943]

Great video thanks for the interesting info.

[@itsnot1673]

Its a good battery but its almost the cost of 2 standard 5ah batteries in Australia so doesn't make much sense yet

[@Penguin545]

Power stack 1.7 amp 2 pa k on sale today at lowes- $200 comes with free tool up to $230 value.

[@Lee-lb9qh]

What was that red brand in Home Depot called again? I forgot.....

[@gjolinares23]

I always want FlexVolt batteries but don’t have any need yet since I don’t have FlexVolt tools. But I have had or still own the 2ah (& some under I think), old 3.0 & 4.0’s, compact 3 & 4’s, the normal 5, 6, 8 and now the small power stacks.

[@gme10955]

Based on Amazon reviews of the original power stack battery run times were not all that great. You should check the run times.

[@theripper121]

Given the original was only a 1.7ah pack it isn't going to last as long as higher ah packs. This new 5ah pack will most definitely last quite a bit longer...

[@whosnext2005]

Exactly what I wanted to see. Thanks

[@glenarseneau4796]

Wonder how it would do against the flex stacked battery

[@WorkshopAddict]

Do you use Flex batteries in your Dewalt tools?

[@glenarseneau4796]

@@WorkshopAddict hell no lol but you see a lot of people on KZbin saying how great the flex stacked lithium batteries are compared to the rest

[@TheThunter96]

Really need to summarize the results with a table. Battery size vs voltage drop.

[@YayFlyingCat]

wow that 5 ah powerstack looks awesome

[@WorkshopAddict]

It is pretty amazing.

[@LeeMalsher]

id like to see a Dewalt Powerstack v Hilti Nuron battery platform. as both have a different way to increase power to the tool.

[@Silv3rDragon]

Would love to see it compared to the 6Ah flex volt.

[@aliancemd]

XR 6ah seems to maintain voltage slightly better than 5ah PS, at about the same size

[@plsreleasethekraken]

I wouldn't say it has the thickness of the 6AH... seems to sit between the single row and double row of traditional cells.

[@WorkshopAddict]

Agreed.

[@THEBEARDEDTOOLGUY]

I will be getting mine as soon has OHIO power tools sends it and will have it run against my FLEX Tools I figured 5 amp power stack VS FLEX 3.5 and 6 Stacked LITHIUM will be fun to do and show it on my KZbin channel

[@WorkshopAddict]

Message me when you do it. I would love to see that.

[@JuanPablo_RDM]

Grinders and circular saws are the key.

[@WorkshopAddict]

It is hard with those vecause the FlexVolt versions rock. No matter what they do in the 20 volt line, it will never match the FV line.

[@brendangriffin1791]

What does the flex battery do to the motor?

[@akaredcrossbow]

Thank you for the video! I think compared to the prices and comparison I would stick with the 6Ah.

[@dusanmilojevic3017]

I see that 5Ah power stack is same as 6Ah 21700 cells battery.21700 cells that use power tools manufactures have 35A per cell constant discharge rate and they not using best cells with higher discharge rate.

[@alcerz984]

Flexvolt tools are beasts.

[@riceball777]

As long as there is the same number of cells in the battery pack the lower capacity will always have higher discharge cells and those have more power assuming they are using the same cell formate. The compact 3ah will outpower the compact 4ah and the 6ah will outpower the 8ah. Samsung 21700 30t cells vs 40t cells. The higher the capacity of a cell the lower power (amp discharge rate) it will have. This is why they don’t use 3.5ah 18650cells and 5ah 21700 cells.

[@TacticalThib]

You can't beat that 30t the stacked lithium is having trouble beating it.

[@TheAtherion]

Hi, I have a question for you. Do you have the DCV517 (cordless handheld vacuum) ? If so pls try to shove 5.0 powerstack into it ... mine for some reason doesn't work with those batteries and I d like to know why or if its just "me" problem ...

[@WorkshopAddict]

I have one and it is at our cabin. It will be a bit before I can try it.

[@TheAtherion]

@@WorkshopAddict Oki thx, I ll wait ^^

[@txvet7738]

I’m curious to know why it seemed harder for the drill to drill through the dimensional lumber versus the 4x4? I would have thought it would have been the other way.

[@WorkshopAddict]

These days The Home depot is getting very sappy wood that is hard to drill through. It forces me to do multiple tests because some wood is easier than others.

[@txvet7738]

@@WorkshopAddict oh that's good to know and makes sense. I was kinda thinking that, great review by the way! Waiting on you Milwaukee to catch up with DeWalt and Flex!

[@frandal88]

Fantastic tests! I'd be curious to know if the power stack cells have lower internal resistance, which makes the voltage not droop as much under load.

[@tensazero]

I'm liking the pstack5. I wish they made the grey section blue. Would have looked awesome and easy to see. Also wondering if they're considering flexvolt production in the future.

[@parkerdalo3248]

Send over to TTC if they don't have one. Would love to see impact wrench testing.

[@WorkshopAddict]

I am sure @TTC will get this up ASAP

[@brianshea5014]

@@WorkshopAddict they said friday

[@jetsetjoey]

He should have included the 12ah FlexVolt in the test lineup!!

[@ScottTooley]

Are the cut outs at the end of the dimensional tests for the 9AH and 15AH due to drill shutting off for binding, or do you think it was heat protection for the motor or battery?

[@jncn1490]

It binded up going through. Dewalt doesn’t have thermal cut out like Milwaukee does .nothing beats dewalt

[@WorkshopAddict]

Yes, it is the bind right at the end of each hole.

[@inhell3348]

@@WorkshopAddict for to be clear sure .please test dcd 999 flex volt vs power stack 5ah agian

[@Cody8P]

cant wait for milwaukees take on this next year

[@inhell3348]

Oh i love this vdo thank you .Please test dcd 999 flex volt vs power stack 5ah agian.

[@yoho6348]

... what is dimentual lumber ??? 😮

[@otoyo69]

Thanks for doing this test very appreciated, but since as your viewer who can’t mimic it, I was wondering if you could repeat your test with Volts Amps $ Watts just to see how they relate especially since watts is power used and Amps is current drawn it would draw a better picture in the different correlations Again thank you very much in advance Cheers

[@WorkshopAddict]

Getting the amp load has been tough.

[@otoyo69]

@@WorkshopAddict lol I understand but it would be amazing to see how many amps the different types of battery can give, and thank you again for your channel your posts are great.

[@ASMRTec]

Why did the XR 5.0 perform so poorly

[@waltermh111]

I am still waiting to be able to buy it. I checked yesterday and nothing. :/ Feels like its taking forever. I am avoiding buying any 20v batteries until I can just run these. tool only is cheaper and can run with my 60Vs for now.

[@waltermh111]

You are right at the end, I am really excited to see the new tech in the flexvolts. Just think of a 12ah flexvolt half the size of the 9ah I am all 9ah flexvolt and its just fine, but dang I would love to be able to get more amps with less weight/size. I bet we will see something next year because it was a year between 2 and 5 ah batteries. I doubt they will do more than 5ah with 20v next because power wise its fine and seems to push the limit of 20v anyway. Its already comparable to the 8ah 60v But they really need more power out of their 60vs for that line so people dont have to buy a 15ah just to max usage, but more importantly, to run their 120v line of products that may expand, being able to get more power out of each flexvolt is key to longevity of use, performance, and the reputation of that line, which already needs 2 60vs to work.

[@jimyounger9490]

The only thing is put the gun in 2nd gear. Proof was even the 15 stopped. But I’m still impressed with the power stack and maybe have to get one.

[@WorkshopAddict]

I showed everyone it was in speed 1.

[@jimyounger9490]

@@WorkshopAddict no I know you were upfront , I mean the tool really can’t do high torque in the high speed gear. No you were completely honest. But yes , the power stack still did it in high gear , so yeah fair enough. Watching the voltage under load was excellent.

[@loochan325]

I see DeWalt has no fear of making a lot of diferent batteryes, but I don't see the no. one priority, 20V max @ 2.4 or 2.5 Ah power stack and 12max @ 4Ah with 3 x 21700 cells ( like Hilti and Metabo have), much more interesting then 5Ah with 6 x 18650 cells like a 24V from Kobalt/Hilti/Flex grey. Sure Bosch and Milwaukee use 6 x 18650 with 3 in the grip, and Makita also with 6 outside the grip, but 3 x 21700 are lighter, more compact, and good up to 40-44A with good cells, and if the 2 -3Ah packs good up to 20-23A can so-so handle DCD 701, then a 4Ah with 3 x 21700 good up to 40-44A is more then good enough.

[@AndrewSouthern-d2s]

I love the power stack batteries they are beast

[@JustinTaylor-xv2qh]

I am no pro. But I think when going through the 2x once the blade cut through on one side it seemed to me that the gap in the hole saw was catching on the wood. Also you could see the lean or tilt of the person and saw once it broke though and boom it catches. Either way I dont care. They are all great batteries to me.

[@mattek519]

Id like to see the 5ah power stack compared to the 6ah Flex stacked lithium on that meter

[@nickfender6682]

Great video! Thank you for taking the time to do this and help everyone out

[@jupiter_thawk72]

👏🏻 I’m so happy 😁

[@fredio54]

Please please buy at least one 6ah flexvolt. Less than the 9 for sure. But should be pretty close.

[@jeffrellek2792]

I cant wait to see a power stack flex volt battery! That’s gonna be the bees knees

[@Mentaculus42]

Interesting test, BUT TOO MANY UNACCOUNTED FOR VARIABLES to consistently come to a definitive comparisons. Examples of probably unaccounted for variables: Age / number of charge cycles on each battery. (Relative internal resistance as a function of size, current draw, temperature / heating, aging of battery chemistry as a function of charging cycles … and so on …) Binding due to not having the drill perpendicular. Progressive dulling of cutting edges. Temperature of motor. Temperature of battery as cut progresses. When I use my pole-saw with 20v vs FlexVolt the performance is night vs day. The larger FlexVolts can get the saw rather hot and not just the motor. Also having a sharpened chain vs one that has been used hard for a day is also a day vs night performance comparison. Liked the test, but hard to draw anything more than generic conclusions.

[@angelgomez7917]

Nice test!

[@jasonhemann3517]

What about fuel economy. All I need to do is drive 2 1/2 screws

[@eugennomatterr7311]

reviewing devalt in milwakee hoody is savage

[@WorkshopAddict]

LOL. People should only care about the voltage numbers, not my clothes.

[@hindleymanb6626]

Noob question I have dcf887 and the dcd795 will 20volts battery fit straight in

[@WorkshopAddict]

Yes, any Dewalt 20V or FlexVolt battery will slide right in.

[@hindleymanb6626]

Thankyou very much

[@hindleymanb6626]

Hi Will the charger I have be ok to charge the 20volt batterys

[@seakadventurer1330]

Test metabo 36v ?

[@robimykompot]

I think battery 6ah and 8ah would do better with DCD998. Flexvolt batteries have an advantage with DCD999

[@TacticalThib]

That flex volt 9.0 will beat everything but the 15.0 the resting voltage is 21.49 so under stress it will only drop to the mid 19's this was absolutely amazing to watch I actually thought the power stack would blow everything out the water boy was I wrong save your money you actually get similar results in the XR 6.0

[@animal79thecat]

could this make flexvolt redundant|?

[@WorkshopAddict]

No

[@jetsetjoey]

Here's my 'two cents': 1) The 5ah PowerStack is way bigger in size & price than expected. I'd rather use my 12ah FlexVolt with the same power & 240% more runtime!! 2) DeWalt should redeem itself by introducing a FlexVolt PowerStack (FlexStack?)!!

[@Alibek27]

Compare with 6ah flexvolt

[@GTOVR4702]

Why not test 12AH flexvolt ? It’s excally same size and weight as 9AH and has 25% more capacity

[@WorkshopAddict]

My 6Ah FV and 12Ah FV are in for service.

[@miltonvonahnen6225]

Dewalt just needs to come out with a 15Ah power stack flex volt 20V/60V!

[@pikachuthegayatheist6215]

I’d like to see what a 15 amp hour PowerStack like.

[@Tools_Tips_How-to]

I think what I got out of this is keep using 6ah until price drop.

[@evanabate4905]

Put this on an impact driver plz

[@WorkshopAddict]

I did today and it was amazing!

[@careypettis6443]

I think a test with those batteries on the chainsaw

[@josephslade3291]

Not practical to use flexi on a drill. Better suited for the dropsaw, tracksaw etc. 1st gen powerstack better for smaller skins, 12v compatible??? output is more important that runtime. Recip/sabresaw is a power hungry tool. IMHO 😏 Thank you for schooling the people👍

[@yoho6348]

That's not an auger bit.... 👀