Why Battery Size Doesn't Matter on Your Milwaukee Impact (as much) CP3.0 XC6.0 XC8.0 HD12.0

Our lifetime of TOOL RANKINGS torquetestchan...
Our battery recommendations: amzn.to/2ZoFA8U, XC6.0 and amzn.to/3b9ot0t (100% of proceeds goes to next tool)
Note that these results likely only apply to 3/8" and 1/2" M18 impacts, larger tools like their 1" likely draw enough amps to make batteries become the bottleneck (we'll see!). There's been a lot of talk about how strapping on a larger M18 battery will get the job done for a lot of guys. Let's see the actual difference on a few different impact wrenches and why that difference might be.
We're still working on some audio bugs, so we're sorry for any dips in quality. Using new editing software and we're about as far from being experts in video/editing as it gets. We're all about the tools, thanks for sticking around.
~We earn from qualifying purchases, when using the Amazon affiliate links here~

[@TorqueTestChannel]

It's a long one, have some time stamps. 1:41 Battery dimensions and price 4:27 New cell size 6:16 XC5.0 6:26 CP3.0 6:59 XC6.0 7:32 XC8.0 8:44 Samsung 30T vs 40T cell differences. 9:32 HD12.0 15:27 HD12.0 in a high torque 10:55 battery ranking 15:57 our suggestions. Our conclusions apply to 1/2" M18 models (so far), working on and researching for this video after seeing these results caused us to rethink our perceptions on these tools like maybe you are right now. The fact may be that decent sized Milwaukee M18 batteries were already "too good" for compact, mid torque and high torque impacts to see a huge gain from these new HO batteries. This has caused us to want to find an M18 1" impact and see if that's where the tables turn. But for now, we're taking a break on Milwaukee as we have lots of cool tools on the bench you'll want to see coming up!

[@ALAPINO]

Good sirs, you should pin this comment to the top. :D

[@robs1873]

This is absolutely nothing to do with using this tool on a job

[@ClipSwitchFlashlights]

Forge please. Wanna know if I should buy it for my mid-torque.

[@Mr_Gabbles]

What about CP1.5 and CP2.0?

[@jacobsebastien3910]

The Best All around battery for the 18v fuel Hackzall is the High Output 6ah battery? Besides the forge....

[@crazysvt03]

This channel is getting better and better!

[@thetoolmeisterph9950]

This channel is underrated! I highly appreciate your effort in pointing out the paper tech aspects vs. actual use. More reviews please!

[@stevedoe1286]

So that's why the 12 was better in breaking out the lugs on my son's truck. More quick power. Thanks for the video

[@nrvsauto8990]

i have a 8 and a 6, i how ever still like the 5 the best, strictly because the size isnt so forward. makes it easier when using shorter sockets

[@ADRASTEIA03]

Upgraded from an older 18v kit. kzbin.infoUgkxW1vOBRCMrgTCDEijzpVzDWsgI-Jm2iQv I independently chose the drill and impact tool, before I came across the kit.I like the 3 speed impact gun. It seems more powerful than my older one, and it can be set to be really gentle. The drill is more appropriately sized for my use. I used to have a hammer drill, but I did not like that it was so big and it was not a great hammer drill. I rather have a smaller drill like this, and then get a corded hammer drill for the odd case I need that.

[@GuyFromJupiter]

I believe higher capacity cells often have lower max current outputs, so since the 6.0 and 8.0 batteries have the same layout it makes sense that the 8.0 would have slightly less power output.

[@Dansk55]

But I bet after a couple of lug nuts, the 8.0 would produce more power as it maintains the same voltage for longer. So I guess for the weekend warrior, 6.0. Mechanic 8.0

[@E.IS.M.I.A.]

ALWAYS wait for sales and stay inform so you don’t have to pay the Milwaukee premium, I got the 2767-20 for $165, the 12.0 batteries at $115, just got to stay informed

[@JudgeBuster]

What tool sales websites give out these great sale prices? Never seen these low prices at HD

[@GamingwithIinfected]

I go to northern tool normally. You can get 100$ of a kit if you but a 14.99 accessories such as bits or something that you will use anyway. So a 360$ tool kit cost 275$ with two batteries and a charger and you get a bit set or whatever with it. The also do military discount if you qualify for it

[@brianjohnson9479]

I can always count on you guys to give me the information I'm looking for. Always my go to channel for real testing!

[@mikemorgan5015]

Great analysis. Cell chemistry/quality are and always have been a huge factor. The balance between capacity and amp output is widely misunderstood. It's not at all surprising when you look at the cells in detail. It was the reason that NiMH cells never really made it to prime time on power tools. NiCads had much higher amp drain capacity. Nice work!

[@TCPUDPATM]

You’re absolutely right! Higher capacity has a trade off - which is max amp draw. I found the same thing. The 6.0HO is the workhorse, and 12.0 for my table saw and high draw tools.

[@NITROUSnBIASPLYS]

Well I’ll be dipped!! Good thing I bought the 6.0 👌🏽

[@Rexxthespecialist]

Ok here is for me: I use the Milwaukee blowers, and every time the 8.0 last several minutes more than the 6.0 And I noticed the difference cuz I use both of them at the same time, one on each hand. I alway ended up dropping the 6.0 blower and the difference is significant to be honest.

[@johnyun8973]

Thanks i was curious how the 6 and 8 would differ in the leaf blower application.

[@JR-ut1yx]

The 3.0s have it all, power and light weight!

[@kartboarder22g17]

Subscribed. Well I'm getting the 6.0 then instead of the 8.0

[@seanmolloy6188]

Great video from what I see is the 6.0 is better value for the money if you need some more torque. I will definitely be saving some money.

[@highnitro707]

Excellent analysis! I absolutely love your videos! keep'em coming

[@l00nybin]

Great video! I"m looking to add some batteries to my XC4.0 batteries that are about 5yrs old, and I was hoping to get a couple HO CP3.0 batteries. Since I have a mid-torque impact wrench for working on my 2004 Silverado as well as a Surge impact driver and a hammer drill, it looks like I need... a XC6.0 for the mid-torque, and the CP3.0 for the others. Dang it, you're costing me more money!

[@stankjaws7023]

$179 at Home Depot for that 2 battery pack

[@LonersGuide]

Good stuff to know. Glad I chose the XC 6.0s when I got into these tools a couple of years ago. Would like to get a couple of CP 3.0s to make my drill and driver a little less awkward on/ in my toolbelt.

[@BorgOvermind]

If you want battery test difference, use the chainsaw. That one can draw enough power to count even for 9 and 12Ah. You will see extreme difference. You will be able to use 12s and 9s for big logs, while 5Ah and lesser will work fine only on low diameter branches. Impacts are not power-hungry compared to many other tools, not that relevant as a simple test. In a power test we want to be able to drain the highest possible power, not a limited amount. The vacuum cleaner is also an excellent way to drain Milwaukee batteries of all drops of power - this is good for actual capacity check.

[@danlux4954]

I used the 5Ah on the saw and it died real fast.

[@600ccgsxr8]

Can we test a partially discharged battery vs a fully charged one? I think that would be very insightful.

[@NonieTools]

Wow so glad I watched this! I was about to buy a ho 8.0 thinking it was the same size/weight as the 6.0

[@TorqueTestChannel]

It is roughly the same size and weight

[@NonieTools]

@@TorqueTestChannel yes, but the price is different and the performance is similar, actually a bit worse for the 8. Huge surprise!

[@8power0]

AM I RIGHT IN SAYING ON THIS VIDEO THAT I SAW THE MILWAUKEE HIGH TORQUE MADE 801 POUND PER FEET . SO IS THIS THE FIRST 1/2 INCH IMPACT TO MAKE OVER 800 POUND PER FEET ON YOUR CHANNEL AND NOT SMA'S IMPACT GUN IF SO I AM DEFINITELY GOING TO BUY THE 3/4 MILWAUKEE HIGH TORQUE AND ADD A BIG 12 AMP BATTERY... WITH A BIGGER HAMMER THAN THE 1/2 HIGH TORQUE I AM ALMOST CERTAIN THIS COMBINATION SHOULD HAVE MORE TORQUE EVEN IF IN SHORT BURSTS??? LOVE THIS CHANNEL !!!!!!!!!!!!!!

[@WvMnts]

Thanks for showing and explaining the battery’s

[@Codeman785]

So glad I seen this video, I was about to bite the bullet and buy 2-8.0 batteries instead of 2-6.0 batteries

[@jasonneighbors7162]

Had a bolt that would budge with a fully charged 5.0 M18. My friend had a 9.0 out of a string trimmer. I put it on the gun just for giggles. It then removed the bolt like it wasn’t even tight!

[@PBS-nm1uu]

great video, thanks for all the info, keep them coming.

[@MattJonesYT]

Requesting battery tests in the M18 string trimmer for torque and run time

[@Lucas12v]

It would be cool to see the same battery at various levels of charge. Or temperature.

[@alexegus71]

Gosh I'm such of nerd I'm drooling over all this calculations

[@robotteck]

Dude! I was thinking this except M12!

[@ALAPINO]

I've always wondered: Do you have a data logger or are you manually creating these timed graphs?

[@laukc7085]

I was wondering if in a future video you could explain/show the difference between the high output batteries to the high demand batteries. I’ve got 2 of the M18 9.0 high demand batteries that I got with a recip saw and circular saw kits a few years ago.

[@Dale37]

Grainger has this mid torque in 3/8" drive with the 12.0 battery & rapid chargers for $249.

[@grevlund]

Fantastic video, with lots of usefull information - Thank you very much :) Have you ever tested the 5,5 HO milwaukee battery? because we don't get the 6.0 HO here in Denmark, only normal 6.0 ;(

[@bentlikeitsmaker]

The the higher capacity cells are usually lower amperage outputs in general

[@mondavou9408]

Fantastic information

[@josephalexander3884]

Good morning. Thank you for an excellent idea and video to illustrate. I have a request. Could you please run he batteries on the Milwaukee 175 watt power supply, using a constant load like a fan or heater, or hairdryer. Compare the run time of the different battery types. Thank you. Enjoy your day.

[@rocketman121]

Please do this with all the Ryobi batteries!!

[@shanesubashe787]

I'd be interested in how a 2.0 cp battery compares.

[@MrHeHim]

I have a blue-point pneumatic and was seriously thinking of jumping into the milwaukee family for "light" impact work. I saw a Bosch Freak (1/2" with 1/4" hex inside the anvil) and figured i'll give it a try since i also have a 5 y/o brushless combo hamer/drill i use all the time and have a few batteries for anyway. It came with a 2.0Ah (18650 cell) battery and advertised 150ft/lbs, but it had trouble taking off a car lug nut that was torqued down to 135ft/lbs. That was disappointing, but it felt like a totally different machine when i put on a old 6.0Ah (18650 cell) battery which was able to take off all the lug nuts. Then!!! Two weeks later i saw Lowe's had a kit with both a Freak, Combo drill, AND two 4.0Ah Core batteries (21700 cells) for $142. That was a no brainer. I was amazed the 4.0 Core battery was able to make the lug nuts fly right off, noticable more power than even the 6.0Ah battery. That would be a nice test to see as well

[@courtneyfaas1266]

Have yall ever considered testing the amazon knock offs to compare 1. if any of them are any good or 2. just standard results comparing the 2 with known impact ratings.

[@iGearhead]

Nice work

[@H0MEDADDY]

Wish I saw this before I commented on another video. My experience with bigger batteries is in my head I guess. Either that or it just takes that little bit more the big battery makes.

[@TorqueTestChannel]

Keep in mind, mainly impact tools we're talking here.

[@H0MEDADDY]

@@TorqueTestChannel mainly use impacts, Milwaukee 1/2 mid torque and high torque. Sometimes have a truly stuck bolt the high torque can't even budge w/ a fully charged 5ah xc, slap the 9ah ho in and it loosens quicker than a 2 dollar hooker. It's weird cause I think your testing is sound and the numbers say it shouldn't matter. But my daily experience as a mechanic using the tools has seen a difference. Either way I like your vids.

[@TorqueTestChannel]

@@H0MEDADDY the early spike these bigger batteries see on the graph may very well be dynamic torque, an increase in power per blow. If we're talking rusted bolts, dynamic is how it breaks it free that first 1 degree of rotation or so. It's not insignificant in those scenarios. Just not as big as we expected, or saw with Ridgid.

[@SawtoothWild]

CAn you test a partially-discharged battery VS a freshly charged one? The question is, if I have a certain task before me, do I need to stop what I'm doing to grab the fresh one off the charger, or is a 1/4 bars battery just fine?

[@jacobsidorin2055]

Plus if a 12ah battery gets stolen at job site hurts more then 5ah.

[@Samboi_420]

Well was about to buy some 8.0s looks like i just saved some money

[@nickk8045]

Would you buy a 3ah Ho over a standard 4ah or 5ah as the prices are similar but the 4ah Is roughly £10 cheaper than the 3ah ho , the 5ah is the most expensive

[@sijonda]

I'd like to see how long each battery model lasts while in constant use before running dead. I got a string trimmer I got without a batter since I already had a XC5.0. I've had it for a couple years and I went from being able to cut down the grass of my entire property (small yard) with 1 charge (almost dead when I was done) to needing to stop and charge the battery 3-4 times until all the grass was cut. So I'm in the market for replacing the battery and I'm debating if I should buy a 3.0 or a 6.0 or a high demand 8.0 because my string trimmer doesn't need high torque all the time but long duration.

[@beyonddeath123]

I can promise on the brushed high impact, the battery does matter in a big way. using a 2.0 vs 5.0 is a night and day difference.

[@scottfernandez448]

Awesome. Great job.

[@strikerj4810]

Has anyone ever swapped out the stock li batteries with a superior version? I know more about 18650's but Molicel and Sony seem to better batteries, so would swapping them out actually translate to more power? Would the mil tech allow it?

[@danmcnamara3854]

Would have been nice to see one of the cp 1.5 or 2.0 just to see how much would be given up by there weakest battery

[@alexeymalafeev6167]

How about different batteries on drills for hard metal drilling?

[@larrytate1657]

What is the run time on ho 3.0? If I switch over to a ho 3.0 from a 5.0xc in my impact how much run time could I expect to lose? Thanks

[@ronlind1757]

Any opinion on best Milwaukee battery for the M18 2352-20 led stick light?? Thanks

[@justinshields4216]

I'll put my IR 1/2" impact next to any milwaukee m18 tool any day. Alot of the tools don't bring out the batteries full potential.

[@brettwalkom948]

Once again you're still limited by the hammer size ect.. Did you not listen.. IR probably has a larger hammer not much to do with the batteries

[@giovannithestud1878]

If I use the HO 3.0 on my 1/2 impact wrench would it damage it ?

[@question_it_701]

At 4:29, that crumb on your finger bothers me.

[@jeffleake1960]

when using your impact all day long a lighter battery is just a nicer thing to use

[@94SexyStang]

Still rockin my 4.0 XC's just fine!!...I usually find myself in tight spaces, so it's PERFECT, it's got enough juice for my Angle Grinder, bla bla, whatever, never found myself "needing more"......just grab another battery, done, I even prefer 2.0 for my impact drivers, I hate heavy batteries.

[@bestpvp4195]

I have an 8.0ah high output but not an xc, what is xc?

[@stormyrain995]

Test DeWalt flexvolt batteries vs regular DeWalt batteries. I own a bunch of them. I'd like to know if they really improve output or if it's just a repackaged regular battery

[@MrSonei6]

Can you test the same with Bosch 5,5Ah / 8Ah / 12Ah ProCore Akkus? The 5,5 and 8 are exactly the same size and weight (2row of cells) the 12 has 3

[@adamkebede6015]

Would this logic apply to the fuel m18 oscilating tool?

[@PBS-nm1uu]

where did you get the battery manual???

[@prawnstar502]

I got lucky and got x2 high output 3.0 and x2 high output 6.0 m18. batteries

[@trainer2018]

Are you ever going to show the Milwaukee 3/4 Hi Torque?

[@TorqueTestChannel]

If we circle back around to high power M18 impacts we might skip to 1" in the future. 3/4" is supposed to have the same motor so not expecting a super interesting difference for the $.

[@ezrawaters6653]

@@TorqueTestChannel the 3/4” M18 is $270 with 1500 claimed breakaway ft lbs / 1200 claimed working ft lbs, and the pistol grip 1” is $700 with 1800 claimed breakaway / 1500 claimed working. Also, the D-handle 1” is $800 with 2000 claimed breakaway / 1900 claimed working. So the 3/4” is a bargain compared to either 1” unless someone actually needed the extra power

[@itswhip]

2:51 20-30% less than today's cost. Ouch

[@conqwiztadore2213]

the box of the 2962p says : up to 550lbs of fastening torque, did they lie!?

[@thetoolmat8632]

not a lie if not under oath

[@danlux4954]

Any info on the HD 9.0? Vs 12.0?

[@galvanizedgnome]

tell that to my ex-wife. freggin size queen.

[@TsunauticusIV]

Ahhhh. Live moving graphs are the bees knees. 😂 thanks for another awesome vid!

[@TorqueTestChannel]

If this channel is ever big enough to need a comment moderator, you're it Tsunauticus. Def our OG #1 fan :)

[@TsunauticusIV]

@@TorqueTestChannel lol I appreciate it. You have an awesome channel here.

[@JonMarshAnderson]

@@TorqueTestChannel “ever gets big enough” just keep pumping the videos out! You’ll be there in the next 4 months!

[@anthonycherewyk322]

@@TsunauticusIV to all egg,; r the, 6 BB, . If

[@enthused7591]

Y'all helped a lot of people on this one. That 1/2 impact is a hell of a tool and it's nice to know the older 5.0 XC's still put down around 95% of the power of the 6.0 High Outputs

[@leeh9420]

Flat out info and the opposite of shouting. I dig it. I'd bought a couple 3.0 to make a lighter package for my M18 Mid Gen2, and now I can use it with full confidence knowing there's only a tiny penalty for the significant size/weight savings vs. the 6.0 and 8.0 I already had. Thanks for a great video and keep it up!

[@tripstomexico9770]

Opposite of shouting😂😂😂😂 I know who and what you mean🤝

[@mediumgrey8674]

Vince

[@jjmmvvaa]

Lol the shouting bit got me 🤣

[@johnharrison4592]

Only a 3.0? I guess if that works for you. Im going with a 6.0 but Im muscular so I can handle the weight easy.

[@azrulamir88]

just wondering how many medium size bolts, maybe tyre lug nuts the 3ah can handle before it start dying? any experience? im weighing which to get now. 3ah enough or more.

[@legostarwarsfan5]

Can you do this for the m12 line?

[@TorqueTestChannel]

We're just about Milwaukee'd out, seeing red in our dreams. But we'll add it to the docket for a later date!

[@TsunauticusIV]

I just saw a video that said DeWalt is releasing “Milwaukee killers” in their impact line. I can’t wait to see if dewalt is stepping up their game or if it’s just marketing wank.

[@TorqueTestChannel]

@@TsunauticusIV We'll find out! That new 400ft-lb compact is at the top of our list. As soon as you see one for sale let us know!

[@kartboarder22g17]

The 6.0 is for sure a game changer over the 2.0. I've got both and using them on my impact driver is shocking difference. The 2.0 is fine, but the 6.0 brings it into a 18v tool almost.

[@mikethetoolman8776]

@@TsunauticusIV new 12v 3/8 impact rated at 400 removal torque and has a 5.0 battery with all the mac features on it now (diff plastic and rubberized)

[@damontroch4765]

We have 6.0 and 8.0 for our 1/2 inch impacts and thats absolutely accurate. Those 6.0 are better than those 8.0. We no longer use 8.0 just 6.0 and we put in hundreds of 12 inch 3/8 lag bolts daily. The 5.0 are kinda ho hum doing it. But definitely 6.0 are kick ass.

[@CP-pf6gx]

Totally agree here. I noticed that my 6.0 HO batteries outperformed any other (8 and 9), except the 12. But their power seems the same, only that the 12 will last a bit longer. But if we consider the ratio weigh/performance, the 6 is the best of all (for me).

[@acc1079]

People seem to think the Amp HOUR number on the side of the battery indicates how much power output it has. Negative. That just indicates the amount of run time it should give respectively. The output all depends on the Amp rating of the cells used, and what type of work they are being required to give.

[@adamfpv8294]

Aka C rating

[@MegaDysart]

What's interesting is that as a general rule, lithium batteries are a trade off when it comes to amp hour rating vs power output. A high amp hour lithium cell generally has a lower power output, whereas a lower amp hour lithium cell will usually have a higher power output. This probably doesnt affect milwaukee stuff since they get a larger amp hour rating by just increasing case size and using more 18650 cells.

[@ezrawaters6653]

@@MegaDysart I know the M18 regular XC 3.0, 4.0, and 5.0 all are identical size, so the difference must be the specific 18650s used. Not sure if the 5.0 would output more or less than the 3.0 would

[@BamaShinesDistillery]

Thank you. I have said this same thing. The electric motor will pull what it can pull.

[@DaveKarloff]

EXACTLY MATE ! Are you and I REALLY the ONLY ones that realise this ?

[@ZVPieGuy]

Good to see some data to back me up in deciding to run 3.0s on my impact. I always keep a fully charged 6.0 on standby in case something is super stuck though. It had made the difference for me in the past so I wasn’t surprised when that one topped out the torque test

[@tylertimmons5543]

Me starting this video after buying a 12.0 for my impact…..

[@ALAPINO]

This is utterly fantastic and I am so appreciative of all your work, guys! All my 5.0s are all aged out, and while I take care of my battery packs they are getting long in the tooth. The constituent cell construction of the 6.0 is appealing considering cost and output delivery. Thanks, lads!

[@cardo1111]

Quality content, excellent unbiased and comprehensive 👍🏽 I don't think I will be upgrading to the HO batteries, unless my XC/HD batteries with 18650 cells were to fail outside their warranty period.

[@jetah50]

i have an XC and there's a difference in run time vs my 4.0. I just looked and the XC is 54Wh vs 72Wh on the 4.0.

[@saminthewoods]

Best. Explanation. Ever.

[@ryanklitzke9547]

More excellent "myth-busting"! I try to explain for people the difference between power density and output measurements but nobody cares much to listen. You've done a killer job here of laying out the difference between two popular battery packaging technologies and how those big marketing numbers really play into the "usability equation". Looks like there are some clear advantages, just not as many as Milwaukee would have us believe. I've tried. pulling up information like this before to help explain some basic electrical principals and this is by far the best summary out there for power tools. I especially appreciate the columns where you break down price per gain or price per ft/lb. Very useful information there!

[@TorqueTestChannel]

Thank you! We're not experts, but try to put out data and maybe make sense of it sometimes

[@SleeperAccord]

@@TorqueTestChannel nice

[@Rapidfire556]

Looking forward to seeing the Octane vs regular Li-Ion Ridgid batteries!

[@covinhas87]

I love this video so much!! Finally a video to prove my touths!! When I tell people that they will not have a huge gain in performance just because they get a higher amp battery, they look at me like if I'm an alien or so.... It's like you swap your fuel tank from a 50 Liter to a 100 Liter tank, will your car get more horsepower??

[@benkuhle9412]

Couldn’t come at a better time! I was literally looking for this information today.

[@brianklein6387]

HD stands for high demand not heavy duty

[@TorqueTestChannel]

You're 100% right, dunno WTH we we're talking about

[@ezrawaters6653]

@@TorqueTestChannel it’s interesting though that the 12.0 is HD and HO, since HD refers to the number of cells (3 rows of 5 in this instance, like the HD9.0) and HO refers to the 21700 cells

[@brianklein6387]

All I'm saying is look on Milwaukee website they say hd is high demand & ho is high output I'm not debating anything but that

[@ezrawaters6653]

@@brianklein6387 I never disagreed 😅

[@colinstu]

would be interesting to see how all these stack up on run time with their fuel leaf blower. I bought the tool only, and only get like 15-20min solid run time with my XC 5.0 on high, full trigger. goes longer when on the slower speed. Wonder if the 6.0 would run longer or not. And if the 12.0 would be worth it / ran much longer.

[@ezrawaters6653]

I’ve actually ran multiple tests on my blower with a new 5.0, HO 6.0, 9.0 and 12.0. 5.0 averaged 10 minutes 34 seconds over 5 runs HO 6.0 averaged 12 minutes 22 seconds over 5 runs 9.0 averaged 17 minutes 43 seconds over 5 runs 12.0 averaged 25 minutes 39 seconds over 5 runs

[@richardv9191]

Run the HD12 if you can afford it mine finally died out after almost 4 hard years of use. It was only used on the blower now I just order the HD 8.0 with HD 3.0 special to replace it before watching this.

[@diegomarcochio510]

Can you do a comparison between the made in Korea/china vs made in mexico batteries please

[@BradsHacks]

Can you please test the difference between 1/2 and 3/8 anvil on the same tool, such as an M12 Stubby? I'm interested in seeing the difference the anvil size makes.

[@IceBergGeo]

I'd bet that the anvil isn't the limiting factor, but either the gearing or steel inside the gearcase, as you don't want to drive a 1/4" nearly as hard as you could a 3/8". There may even be electronic limiting, such as in the little buttons that allow you to change the output torque on the 18V ones.

[@BradsHacks]

​@@IceBergGeo 1/4 and 3/8 Milwaukee impacts are indeed very different designs, but as for the 3/8 and 1/2 M12 Stubby I was talking about, they share the same gearbox and electronics: documents.milwaukeetool.com/54-26-2570.pdf documents.milwaukeetool.com/54-26-2580.pdf I believe that the difference in torque is due to mostly the rigidity difference between the 3/8 and 1/2 anvils. The anvil (and socket) actually experiences some non-negligible elastic deformation during the impact. A smaller, less rigid anvil spreads out the impulse over time. Impact driver bits with long and thin torsion zones, as well as torque sticks, use this principle to soften the torque transferred through the bit. The area under the torque-vs-time graph is the same (same amount of work done), but the peak torque is lower. The anvil and socket (and anything attached in between) are effectively a torsion spring (they twist elastically a bit under the tremendous torque). A torsion spring with spring rate k exerts torque τ at twist angle θ: τ = kθ As they deflect, they absorb kinetic energy from the hammer. Assuming the fastener hasn't budged and therefore no work has been done on it, and omitting dissipation to heat and sound etc, conservation of energy says: kθₘₐₓ² = Iω² where I is the hammer's rotational inertia and ω is its angular velocity when it hits the anvil. Rearranging: θₘₐₓ = √(Iω²/k) τₘₐₓ = kθₘₐₓ = k√(Iω²/k) = √(kIω²) This shows the peak torque is a function of anvil and socket rigidity, hammer size, and the spring driving the hammer. Impact frequency can also be a factor as another torque peak can be "stacked on" before the energy has finished releasing. Since k is an aggregate spring rate of not just the anvil but also the socket, (1) the difference made by anvil alone is not that big, (2) manufacturers can inflate torque measurements by skipping the socket and connecting a dynamometer directly to the anvil. This relationship also explains why torque sticks of a certain k perform differently on different impact wrenches (different Iω²). Of course, the fastener's own deformation and movement factors into k in reality as well. An extreme case is when the impact wrench fails to exert much torque on a bolt in a rubber bushing. The difference between the anvils is shown practically in this video: kzbin.info/www/bejne/pYPIe6mNj6qZn9E But I'd like to see it quantified by Torque Test Channel.

[@chavisiegel9242]

dude amazing amazing content. I purchased the new mid torque recently and have a pair of 6.0s to work with. i found out only afterward that the 6 and the 8 are the same size and felt like i got screwed over, but it seems like i made the right decision!

[@speedtuff]

Should have done this test on a high torq 1/2 or 3/4 gun that have bigger motors that demand more power.

[@Komeuppance]

Loving your channel. I have a Dewalt DCF899 (claimed 700/1200 ft lb). If you're interested, how can I contact you about sending this for you to test?

[@TorqueTestChannel]

That would be awesome! [e-mail] . We send you a shipping label and have multiple references now of people who have sent us theirs and got it back.

[@joebrown9621]

The gen 2 mid torque doesn't take full advantage the extra available amp as the High Torque does from a 5 to a 6 H Output can hear and feel the difference.. it seems to stabilize the voltage better under continuous load.. frim to 5 to 9 amp on my 3/4 definitely gives abit more punch.. surely not 50% but just enough where it consistently breaks 1-7/8 Nuts where the 5 XC did once

[@Sebsiseq]

Hands down favorite battery is the hd9.0, wish they hadn't discontinued them, in my experience yes the 21700 cells put out higher amps, but all of my 21700 packs have had significantly shorter lifespans and the added size really isn't worth the higher amps

[@timothybayliss6680]

They had a terrible warranty rate. Its 3000mah 18650 cells stacked 5s3p. We still have one at work. If we are using a high drain tool, usually the string trimmer, it will overheat before its empty. For the big batteries we have it is easily the least useful one.

[@jps101574]

Awesome test. Hats off. I just subscribed. Most tool review channel don't understand the difference between amps and amp/hours. I would love to see a similar test with these batteries using a direct drive tool like a circular saw.

[@matiche]

From my personal experience the 3.0 is not as good as the 5.0 when using Sander A lower speed will cause swirling a lot easier

[@boltgun7266]

Excellent video. I looked for the Ridgid test but couldn't find it. BTW, I'm an automotive instructor. I'm going to add your channel to my syllabus. Excellent information.

[@TorqueTestChannel]

That's awesome. Rigid's coming up, that was just a sneak peak of very recent testing.

[@IceBergGeo]

Funny thing is, being a sparky, and enjoying the principals of electronics as a hobby, and vehicle mechanics because I am cheap, I ended up doing this exact test about a year ago. I had the xc 4.0 batteries, and they were on their last legs, not able to give enough torque to the m18 mid-torque impact to remove a strut bolt, so I went out and bought the 6.0 two pack instead of the 12.0 single. I am glad that I made the right choice, based solely on battery style rather than sheer size. All said, I guess you could say that the 6.0 is like better fuel in a smaller tank and the 12.0 is like slightly crappier fuel in big tank.

[@larrytate1657]

The 12.0 is a beast in my blower. As far as Run time.

[@IceBergGeo]

@@larrytate1657 it would be. Bigger tank. But, I can be charging one 6.0 and using the other instead of having to wait... Unless you have a few 12.0 batteries, in which case, you're a richer man than I.