Dewalt Flexvolt 9.0Ah 6.0Ah vs 20 volt max 5.0Ah 2.0Ah vs 40 volt - How Dewalt Batteries Size Up

Price teh Dewalt FlexVolt Battery pack on Amazon: amzn.to/2nhIM5O
More Volts Equals More Power? - Dewalt has changed from the 18 volt battery platform to a 20 volt max battery platform a while back due to battery style changes. This change also has/had many thinking that the 20 volt max platform is more powerful than the 18 volt platform because it has 2 more volts. (Not true). Now Dewalt introduces the Flexvolt battery that is 20 volt or 60 volt depending on the tool it is in. That is awesome innovation, but also a bit deceiving. The Flexvolt battery is a 3P 20 volt battery, or 3 sets of battery cells wired in series that each equal 20 volts, then wired in parallel to produce 20 volts. When the tool is a 60 volt tool, the communication from battery to tool allows for the circuit to be changed to the battery being wired in series, allowing for 60 volts.
Confused yet? Watch our KZbin video and it will be a bit clearer.
Our point in the video is that voltage in some cases does not mean more power. We show you that the Dewalt 40 volt battery is larger and will be Dewalt's commercial outdoor power equipment line leader, even though it is 20 volts less than the Flexvolt battery.
We want you to know what you are buying!

[@johntracey523]

I liked the video better than others. No corny music or moves. No muffled sound. Just the basic info I needed. Thank you! Blessings John 20:29

[@dannyh.7490]

Nice to see battery technology improving rapidly. It certainly makes me want to get my collection of cordless tools up to snuff !

[@ppipowerclass]

The cordless miter saw is just awesome when you don't have power. The 4 battery charger / power station is wicked handy when you're working in the middle of no where too.

[@buildthings79]

It may be confusing to some of you but from an engineering standpoint it makes sense. When a electric motor has to put out " more power", then you have to increase the wire gauge and windings it it to do so. By increasing the voltage going to these new cordless tools and still be able to use it on the current line of tools its a win win. The tools that demand more voltage to operate more efficiently can use the 60 or 120 volts that they can produce but the hand drills and smaller tools still only have a small brushless motor in it that works fine with 20 volts. Being able to vary tbe voltage supply from one sorce and have it do it automatically is a huge advantage in tool design. That is whats going to hurt Milwaukee in the long run.

[@wladicus1]

_ That is true when you already have a large inventory of tools at a different voltage. Thus, it is a good sales technique to 'brag' about the smart battery design, which they wisely decided to do in view of all the 20-volt tools they have in their sales inventory. This way they do not have to redesign all the tools. _ However, it would be more efficient to have ALL the tools designed to work at the same voltage. _ The design itself will determine the current draw. Thus the less power demanding tools will run longer on the same battery.

[@AbsolutionArmament]

you do realize the 20v is 18 volt right..... Google it. 20 are 18 60 are 54

[@8digitPDX]

Other tool companies did the same thing with the 40v batteries, putting them into yard and garden tools, then doing something different for carpentry tools when those 40v batteries would have been just fine at least for bench tools and 7-1/4" circular saws.

[@DavidAlanReece]

Thank you...a simple thank you for a perfect video explaining what I am sure many of us were trying to figure out before buying new batteries! Straight and to the point.

[@wolf229pack]

i got the 60volt grinder and it runs amazingly put a 7in diamond grinding wheel on it lot of power for a little bit of run time but it did realy good

[@lemon-iu7bo]

Dang that circular saw is beautiful I need to go get my self one of thoes

[@interman7715]

Shield Spear I have one , the power is unbelievable.

[@phbrinsden]

I use the 60 volt circ saw and it is very powerful. When not in the saw the battery is used in my large 20 volt blower which is a power hog but lasts really well in the blower.

[@chevy5137]

Good video that was a pretty straightforward explanation for people who don't really understand how those different batteries work. I am with you on the size of the batteries it is starting to get where the size is just becoming to much, granted ya on the flexvolt miter saw your gonna need those big batteries but then who is going to want to take that same battery and put it on their impact driver or drill. I run the Ridgid 18 volt tool platform and I have a ton of their 18 volt tools, I am up to 20 right now, and for things like my 7-1/4" cordless brushless miter saw and my hybrid panel light the big 5.0 amp battery is great because those tools demand more power and getting down to things like my 7-1/4" brushless circ saw and sawzall I will usually stick with 4.0 amp batteries on them and then further down my brushless hammer drill and my brushless Stealth Force impulse driver I virtually always run only 2.0 amp batteries on those tools, the exception being if I am doing a lot of concrete drilling I will put a 4.0 amp on my hammer drill, but I keep the 2.0 amp batteries on them because it keeps them lighter and smaller in overall size and they still get excellent runtime and even on the rare chance that I am working them so non stop that I kill a battery you know I would rather take 1 minute walk over to the charger and slap on another 2.0 amp battery that to run with the extra weight of a 4.0 amp all day. Don't get me wrong here though I do love that they have come out with batteries that can run larger things like these miter saws and lights and other high demand tools but I still think for me I always want to pick the best battery I can for the tool so that I have good runtime and power but I'm not going overboard and adding extra weight I don't need and I hear a lot of guys comment about that you don't need the smaller batteries anymore so why get them, well when a 2.0 amp can last me all day in my impact then why the hell would I ever want to put a 5.0 amp on it cuz all that's gonna do for me is make it heavier. I remember when lithium batteries started becoming standard I was amazed at how light they were and now they have just kept getting bigger and bigger lol but again I am thankful because 10 years ago if you told me I would have a cordless miter saw I would have thought you were crazy yet here we are today with multiple different ones that are replacing corded saws on the jobsite and ya dewalts flexvolt 12" miter saw is sweet and it is something else but honestly I gotta give it up to Milwaukee, Ridgid even Ryobi and Dewalt with their 20 volt miter saw and even Makita although you have to run 2 of their batteries with their miter saw but where I think those saws all shine is they run right off you existing 18-20 volt platform and can still put out good power get good runtime and produce results on the job and you can take a battery from your drill and slap it on your miter saw and vise versa with those examples and that is where I am really impressed, last thought I doubt we will ever get it because it would outshine the Milwaukee 10" 18 volt miter saw but AEG (Ridgid out of the USA) has a 10" miter saw they will run on 2 of their 18 volt batteries and here is the kicker unlike the Makita dual battery miter saw this AEG can run on a single battery and then if you want you can put in a second 18 volt battery for added runtime and more power, I have heard numbers of over 600 cuts thru a 2x4 on 2 fully charged 6.0 amp batteries (yes they get 6amp batteries where we only get 5amp oh not to mention they look better too looking nice like the 2 and 4amp batteries with the rubber overmolding) I mean this thing looks cool go check it out! kzbin.info/www/bejne/emnIfGhrd8upo9U Damn being in the Ridgid 18 volt platform that sure as hell is something I would like to see make it to the states!!! However again I doubt we will ever see it since TTI owns Ridgid and Milwaukee (Ryobi too) I doubt we will ever get that AEG (Ridgid) 10" 1 or 2 battery miter saw here simply because I think it might outshine the new 10" 18 volt Milwaukee and since Milwaukee is their top brand I am sure they don't want Ridgid or Ryobi to outshine Milwaukee in any way but hey maybe we will get lucky and they will send that bad boy our way, I've been thinking of asking my friends in Australia if they could get and ship me one lol but for one I have been pretty content with my little 7-1/4" 18 volt Ridgid miter saw since it will handle virtually everything I usually have to cut and two I honestly don't know if my batteries would be compatible since they run 220 volt over there standard where we run 110 volts so idk if that effects the battery design in anyway or not. Anyways interesting subject I wont keep on about it lol! Hey keep up the good work you guys I really like your videos your channel is one of my favorites here on KZbin so keep putting out those sweet tool vids, thanks guys!

[@ZRL11]

Very informative video. Was glad to understand the exact concept of the differences 👍

[@likeaboss882]

The more angry pixies you can stuff into the motor the better! I really like my flexvolt stuff, i have the grinder and circular saw. I want to see a 1” flexvolt impact or a line of automotive tools using flexvolt stuff. The cordless compressor is a genius idea, too

[@konstantine381]

Love watching this now and seeing how dewalt discontinued the 40v line

[@raabsand]

I wish ryobi would have done this with their 40v outdoor tools. Would have been awesome to have the same 18v one + batteries "flex volted" to 40v to use with their outdoor line. They kind of did something similar with their brushless tools and new batteries. There are new prongs at the bottom of the connection that tells brushless tools to go longer or something. There's a video on it somewhere

[@PalataoArmy]

I have been expecting torque comparison test, voltage comparison test, speed test (rpm). Btw, this is a good sales pitch.

[@JT_70]

I use DeWalt and have a bunch of batteries. I like the Milwaukee 40v equipment approach which uses 2 20v batteries side-by-side. I’ve seen videos showing that the Dewalt twin 60v miter saws are totally unreliable and failure prone, acknowledged by Dewalt.

[@dwightdumas7724]

Great video, no wasted talk just and informative

[@WorkshopAddict]

Thank you.

[@vaztion]

Pretty useful info, thanks guys!

[@ryanwood74]

Thank you Thank you Thank you for explaining! I was so confused....

[@idealdirecthomeimprovement1639]

Great video and very simple! 👍🏻

[@tooltester1404]

Thanks for explaining, this video was really interesting.

[@rb1363]

Very informative, have the dcs575 and bought two of the 9ah batteries, however, feel that they are quite large so might downsize to the 6ah batteries, do you think there is going to be that much of a noticeable difference in weight, great video, keep up the good work 👍

[@jhltexas6172]

Great video, and nice Chevelle SS!

[@sk8rXkids]

Great information! That Chevelle is a beautiful and very sexy machine! My dream car, right down to the paint job!!!!!

[@PeterJTamburro]

Oh man. Thank you. This is so helpful.

[@themotofixery]

i think the idea behind the 60 volt battery is that they can make tools like a miter saw that will either use 2 batteries or just use a power adapter so you can plug it directly into the wall.

[@ryanharrison955]

I just bought a 20 volt 10 amp hour battery . I’m trying to get longer run time for my drills and circular saw and saw saw . Do you recommend this or should I do the flex volt .

[@wftseriously6694]

good review tho

[@MustPassTruck]

It's like I'm looking into my neighbors garage lol. Bunch of yellow tools and a red chevy muscle car.

[@WorkshopAddict]

Howdy Neighbor.

[@rockyfish3115]

Aldi just brought out a new tool range called ferrex tools they are 40v/20v duel voltage good tools especially for the price

[@wildgoose6596]

I think you summed it up, SIZE MATTERS! More cells = more power.

[@c0553063]

The weight can work for you. We have two dce800. Sanding ceilings the weight at the back balances the head on the ceiling. My brother and I sanded out a 10,000sqft house with two 9amph batteries. Scottish boys in Canada maybe that helps with the weight

[@aicardoramos]

Will the flexvolt fit in and work in the tough radio

[@plumberman19]

I totally agree with what buildthings79 said. The versatility that Dewalt has engineered into their power sources is going to lead them ahead of the big competitors, Milwaukee and Makita. Dewalts flexvolt is why I went with Dewalt. I like having the versatility and that my very expensive batteries can function with all my tools. The 60v tools are as powerful as anything you plug into the wall. As far as this guy explaining voltage and ampacity I'd look elsewhere lol. Its pretty simple and he made it sound far more complicated than it actually is. Power sources can be in parallel or series. Parallel doubles the capacity (Mah) but keeps power(volts) the same. Series doubles the volts and keeps the capacity the same. Done. The standard in lithium batts is 3.7 volts per cell(battery) and the capacity(xxxxMah) varies. So 5 batteries....ah never mind there are other good videos that explain this very well, lol.

[@ChrisGilliamOffGrid]

plumberman19 Right. I got the joist drill as soon as it came out. Love it. The weedeater is badass too.

[@SmalltimR]

Problem is, 60v isn't actually 60v, but more accurately, 54v Similarly, when a pack shifts to 60v, the Ah rating drops according, For example, a 20v rated at 9 Ah, becomes a 60v 3 Ah pack respectively. With that said, I was completely put-off by Dewalts deliberate lies when they launched there 20v line-up, which turned-out to be 18v And most importantly, where they did so to convince would-be consumers that there products were somehow better than the competition Or should we say, the more honest competition - lol

[@MrSummitville]

@@SmalltimR It is 60 Volts *MAX* !!! I wonder if you can read and understand English or not?

[@GR-cf4qh]

The batteries are the limiting factor as I see it for the flexvolt tools. Both the 6ah and the 9ah flexvolt batteries are huge and heavy and the 6ah is likely going to remain the smallest and the lightest flexvolt battery you can get, because in 60V it's actually only a 2ah battery. So in effect, only the most powerful handheld tools or more stationary tools will be made as 60V or 120V. A 60V jigsaw or impact driver wouldn't make a lick of sense. The flexvolt recip saw is probably pushing the limits of practicality, since other makers get good results from 18V. It's a very powerful battery platform, but for most tools 18/20V batteries will remain dominant. For things like circular saws, table saws or grinders though, this gives DeWalt a huge advantage.

[@theoneNica]

Is it worth buying the 9amp battery I already got an 6amp is it a big difference in power

[@blake102989]

Screw those batteries, I want to see that chevelle

[@jscott4613]

I'm buying this just as a inside the house generator and to run my 20'inch wall fan in my enclosed trailer and to use me electric air compressor both only as needed..getting the 9mah batteries(4)of them...with all that being said is this the right way to go....in your opinion

[@nel1803]

Great explanation... cleared up alot of questioning I had

[@lesr5737]

I currently have 6 9 amp hour Flex volts batteries also I have 240 volt. I wanted to purchase the chainsaw and thought that I should go with the flexvolt cuz I had so many batteries then I can exchange them more often. I was blown away I checked both saws in operation on KZbin and the 40 volt chainsaw really outperform the flexvolt at 60. So I'm glad I watch the video of the performance and of it I would have made a mistake by going with flexible since I already have 240 volt batteries. Thanks for the info

[@NightshiftCustom]

the volts are very misleading like how they use the words MAX on there 18 volt battery's lol

[@festushaggen2563]

Thanks. This helped clear things up. I think the key points were that the Flexvolt batteries are heavy and more suited to larger tools like mitre and circular saws. I'm sure my reaction was typical in that more power and run time is better but the weight difference on a drill or driver seems pretty drastic. As you said, I think they found the border of too big. The 5ah seem to be the better choice for handheld tools.

[@JasonShowell]

I have to say, this video is a lot more confusing than it needed to be in my opinion but gave a good look at the sizes of the batteries and how they sit in the tools.. In the UK the 36v (40v Max to the Americans) range is pretty much non existent. You certainly can't easily buy that stuff anymore. 18v (20v Max) is pretty much the standard now and the new flexvolt range is now taking on the mantel of professional user. Forget about the size of the battery for a second. It is really rather easy to work out what is going on. Making an 18v pack is easy these days and everyone does it. Making a 54v (60v Max) pack require 3 times as many cells to make the 54V. (3x 18 = 54) They could have just wired the cells in the battery to have a single 54v battery that had a single use in only 54v tools. But the way they have done it means that you have 3x 18v pack in the flexvolt battery and if you run them in an 18v tool you get the capacity of using 3 batteries. If you use them in 54v where it uses all the cells at the same time, you get the capacity of a single pack. A flex volt 6.0 Ah pack is quoted at 6.0Ah for marketing purposes as it sounds better and it is 100% true when used in 18v tools but if you join the 3 cell pack together to get the 54V the you will only get 2.0Ah capacity. It is actually a very clever way to get the best use from your tools and batteries. As the battery is capable of working at 18v it is totally capable of being charged from any regular 18v charger. The downside is the time, some chargers will charge a 18v 4.0Ah battery in 60mins. this means that same charger would charge the 6.0Ah flexvolt battery in 90 mins. The new chargers are fan cooled and charge the packs that much faster but technically there is no difference other than charging rate achieved. I have no idea on the history of why Dewalt had to call the range 20v Max in the states but it is also technically true as an 18V battery when fully charged will put out 20v but only for a very short time until it drops to it normal working voltage of 18v for most of the run time. I assume there are different marketing standards in the states. Thanks for the video, was nice to see the sizes, especially that old 36v (40v) pack.

[@miker5915]

Cheers, thanks for your explanation as it relates to what we get here in NZ, and now the market is flooded with 20v tools but we're use to the 18v and 36v so everyone is wary. Even the sellers are unsure! Yay for youtube!

[@frozenprakash]

3:50 Universal unit of Energy [ Wh ] gives precise energy capacity of a battery. 6 Ah * 18 V [2 Ah * 54 V] = 108 Wh 9 Ah * 18 V [3 Ah * 54 V] = 162 Wh 7.5 Ah * 40 V = 270 Wh Note: 1000 Watt hour = 1 kWh = 1 Unit of electricity

[@reality150tv]

A year old but anyways, those batteries are designed for bigger tools not the small brushless impact or drill, however if u choose to use it in a smaller tool the tool will be more powerful even at 20v if u need it, I am aware some think that is false, but they also have plenty comparisons for mah sizes and its always more powerful with a higher mah battery, prob to do with heat. Most of the flexvolt stuff is for the full size legit 12" sliding miter saw same as the all electric version just few minor differences. With the main advantage use 1 or 2 batteries, then u have the table saw which is very nice but a smaller blade, Grinder the weight is not an issue there either, and with most 18v /20v stuff those grinders are not that great. They have a very robust line of flex and from what I hear it isnt there to replace the 20v line. They are still releasing new 20v stuff, but the nice thing is the flex is backwards compatible if u so choose.

[@AntonioClaudioMichael]

Good information

[@manwithoutastar]

I’m still not clear on what has a longer runtime on a standard 20v tool? The flexvolt 6.0 or the Xr 6.0?

[@simonmoran6009]

Excellent review 👌just wondering as l m only getting into cordless range in the metal fabrication business , and l m wondering what volt batteries and model of tools do you recommend , l m interested in an impact driver & wrench , 4.5 grinder, & an sds drill ? Tks v mch

[@DaCake2]

Thank you so much for making this. Finally I understand. I agree that it is confusing. Really enjoy your videos. So would you say its safe to say that the flex volt is the safest and most practical options for homeowner use?

[@91dryman]

I wouldnt say that you would need a flex volt battery for home use. You should be fine with their regular 5amp 20v battery. Unless you do a heavy amount of work, flex volt ain't gonna matter much.

[@phbrinsden]

I am homeowner but do big projects and the 60 volt circ saw is amazing. I love dumping the cord. So easy to move around my work site. No danger of cutting into cord.

[@toolfein5079]

I've Seen alot of Flexvolt Tools in store but have yet to try them out but there new 9.0 battery is a beast! & that you can use it for your 20v tools as well male it that much better. Great Upload. #WorkshopAddict

[@thecloneguyz]

Do not put a flexvolt battery on a non XR DeWalt tool you will destroy it immediately

[@skhochay]

dude the simplest way to explain, the bigger battery amp is like a bigger gas tank will run longer .

[@scottmclellan3254]

It's simple math: voltage (V) x amperage (I) = watts power (P). The small 20V battery can produce 2.0 amps for 1 hour so 20 x 2 = 40 watts for 1 hour. The smaller flexvolt is 20/60 so is either 20 x 9.0 Ah or 60 x 3 Ah -- both equal the same 180 watts for 1 hour. Notice the smaller flexvolt is essentially 3 times the battery of the small 20V battery, it's just connecting the 3 rows of cells in series or parallel. So if you had two 20V drills connected to these two example batteries, both being loaded identically, the flexvolt battery would last exactly 3 times as long (theoretically). Google "wiring batteries in series vs parallel" for further explanation.

[@danhoven]

Sad to see the 9ah 20/60 doesn't fit in my new Dewalt porta-ban. I just bought it so am going to return it Monday. I could grind/cut the handle off of the ban saw to make it fit, but I'm hopeful they correct the issue in the near future with a better design on the bansaw.

[@thecloneguyz]

It depends on if you bought the Deep portaband or the shallow portaband

[@dvang81]

i would need at least one or two flexvolt battery beside my standard 20v battery.. in case lazy charging or lack of short time power use.. one thing i was worry about at first, was if flexvolt didnt fit any standard 20v tool..

[@canuckfixit7722]

Do the math.... batteries in series you sum the volts of each cell to get the total volts and the Ahr remains the same as each individual cell. Batteries in parallel, you sum the Ahr to get the total Ahr rating for the pack and the volts remains the same as each individual cell. So, the 18V.5 5Ahr battery pack is two stacks of five 3.7V 2.5 Ahr cells. As stated in the video, the 55.5V 5Ahr batttery pack is three stacks of five 3.7V 2.5 Ahr cells. The internal circuitry switches from 20V to 60V depending on the tool it is installed onto.

[@antonioofield1533]

Can u connect that 7.5 battery on the other tools? The connection looks different

[@catfish500mark9]

Will the 20v 5ah battery work with the 20v 2ah chargers?. I already have two of those chargers and dont want to buy a new charger.

[@DiligentDave1966]

What’s your opinion of the XGT combo at Home Depot?

[@michaellacey9968]

So more AmpHours means longer run time. But higher voltage means more power (though it might not last as long)... correct? Which battery type do you recommend for use with outdoor power equipment? Flex volt vs 40 watt?

[@NightshiftCustom]

yes pretty much what it means but at the same time a 12AH battery at 18volts or (20v MAX) has alot of amps of output compared to 60v at 2 - 3 AH of power so can still pack a very big punch of power but run for a very long time also that's why milwaukee can still make full size tools with tons of power on there 18 volt battery's with great run times. smart move for them

[@fuge74]

to make it even more confusing there are also 3, 4, and 6 Ah Dewalt 20V-batteries floating around. the basic thing is these batteries are made to run different voltages for different amp hours but run for all voltages for variable amp hours. the are all forward compatable but they are not backward compatible.

[@crayshaunhenderson1265]

i have a bosch impact drill 25618 and both bartteries that came with it was bat612 and they don't work at all and i don't understand why. i had it going on 3 years and i only use it once and i never charged them so i heard the battery died and the other one stays with 3 bars showing. so i want to purchase a high output battery for my impact drill

[@harybear2252]

by the way teh 5 tool combo kit only has one belt clip and the saw rip fence is not included in the bag

[@thomasfloyd6714]

By the way the 18v vs 20v is the same, it's European vs US but it's the same

[@dubaicoocking710]

I love dewalt and 70 chevelle

[@WorkshopAddict]

We blew the Chevelle SS up last summer... :(

[@christophercooney5806]

Is there any difference in power or run time between the 6ah 20v and the 6ah flex volt? Thanks

[@WorkshopAddict]

Not enough to talk about. 6Ah is 6 Ah and they will perform pretty much the same. We have run tests with them on vacuums with the same draw and they have runtimes within seconds of each other. The flexvolt is heavier because it uses older 2.0 Ah batteries and is 3p.

[@christophercooney5806]

WorkshopAddict Thanks so much for the reply! Much appreciated

[@Rock_Reggae_Riff]

The tool will perform exactly the same. However, the voltage drop will be less, if you were to use a 6ah flexvolt.

[@VenomBroly]

Hi, could you say me please if the 12ah can go inside the circular worm saw DCS577N-XJ

[@vontrap6942]

From what I have seen over the last 2 years is Dewalt is not pushing the flexvolt system. HomeDepot used to have huge displays of it and now hardly anything!!! It is a great idea with cordless table and chopsaws, aircompressor and more power to cordless circular saw, recip saw and angle grinder. But it seems it's sort of getting killed off when it has so much more potential.

[@kennethsimon407]

Can I use a dcb118 4.0a charger to charge a dcb 205 5a battery

[@frozenprakash]

Thumbs up for Wh !! Power = Watt Energy = Watt hour Running 100 W tool for one hour consumes 100 What of energy, and 200 Wh for 2 hours and so on. Simple as that, And 1000 Wh = 1 kWh (1 Unit of Electricity) Ah is for children (which is wrong unit which does not take voltage into account)

[@johnryle6917]

Great video I was able to understand it

[@thomasmarquardt5483]

In laymen's terms can I use a 6 volt max battery in my flexvolt blower? Can you please reply. THANKS

[@user-to9xe9dc9e]

In 6.0ah battery flexvolt. Inr 18650 samsung 20s?

[@steveheavener4932]

No recent Flexvolt videos. Is Dewalt backing away from making new tools for Flexvolt?

[@WorkshopAddict]

They have some concrete tools, but nothing much new at all from DeWalt

[@hrtyboyz]

Hey do you think you guys can do a video on the adapter for 18 volt tools for DeWalt that converts the tools over to a 20 volt battery??

[@phbrinsden]

Not needed. Just buy the adapter, plug into your older 18 volt tools and then plug a modern 20 volt max Li ion battery into it. Done. Works great. Now those older tools have a new lease on life with all the benefits of lithium batteries. NiCAD and NiMH batteries are completely out of date.

[@bigtexas7580]

*I have the Dewalt XR 899 impact and it struggles with stubborn rusty bolts with the 3ah battery that came with the impact so should I go with the 9ah battery for more power or what? Not sure if a bigger battery will give this impact the extra power to bust off the super tough bolts or if I should be considering the 20v milwaukee impact that's supposed to be more powerful than the dewalt 899.*

[@WorkshopAddict]

I would move up to the 6 or 8 Ah 20 volt

[@bigtexas7580]

@@WorkshopAddict *Will a more Ah battery provide more power and torque or just longer run times?*

[@WorkshopAddict]

@@bigtexas7580 to a point both. IMHO no impact wrench should be used with less than a 5ah unless it is a compact. But once you get over a 6ah 20 volt, not a 6 Ah FlexVolt, there is little to gain.

[@bigtexas7580]

@@WorkshopAddict *I was just told that the cells in the 9ah and 12ah batteries are more powerful than the smaller batteries so I believe I'm going with the 9ah. Thanks.*

[@james10739]

I think you said the smaller flexvolt battery had 2 rows that does not add up it's 15 cells I'm not sure about that 9 amp hour maybe they are not 18650s maybe those 26650 or whatever size they are

[@EL82M]

Is my dcd778 hammer drill compatible with other dewalt batteries (20v/1.5ah)?...since it’s original battery is 20v/3.0ah

[@WorkshopAddict]

manuel silva Yes, you can use all the DeWalt 20 volt batteries and also the FlexVolt batteries.

[@jamesf9610]

Yes you can use any dewalt lithium battery pack except the 40 volt. The 40 volt will not work but the 1.5-2-3-4-5-6-9 ah 20 volt and 20/60 volt flexbolt batteries will work. And just FYI the larger 6 and 9 ah not only run longer it will in fact give you more power. It has been tested and proven.

[@adamyaw]

James F I agree with you on power. I have the 7 1/4” 20v miter saw I use a ton and with a large battery in it I can feel the difference for sure

[@emgeezef]

I'm a small woman. In the past couple years I've started getting into doing my own DIY and lawn work. I started with a Ryobi 40V 2Ah battery in my weed eater. Then while looking for a replacement discovered that one can buy a whole set of tools that run off of the same batteries and are interchangeable. That would be great to have a full set of electric tools that aren't extremely powerful for me, but enough that I am not struggling with everyday tasks and some heavier stuff. My husband uses all gas powered heavy duty equipment, like Stihl, and while I can use those, I am sore for a few days after. Any suggestions?

[@WorkshopAddict]

New Dewalt Flexvolt attachment ready trimmer and dewalt atomic tools.

[@hengineer]

If you're already using Ryobi tools and batteries there should be nothing wrong with sticking with them. I agree, stick with one consistent battery tool line. I've got DeWalt myself.

[@edwardryser6949]

I am looking to get the new dewalt 961 1/2 impact and I don't know which battery to get. The thing I will be using it the most on is my scag mower when I change the blades. Thanks

[@WorkshopAddict]

IMHO, you will be fine with a 5Ah, but a 6Ah 20- volt will give you more power.

[@edwardryser6949]

@@WorkshopAddict Thank you I didn't know if five would work or if I needed to look at the 9ah, but the 9Ah was about $300. I love the red Chevelle in the background, my dad had a 69 back in the day.

[@Morrissey2096]

This video is more confusing than the battery platform it's self 🤣 if I wasn't confused before I definitely am now

[@geraldmoore6257]

Forget volts, forget amps, the key is in the video at 4:30 - "watt hours" is the metric. This generally translates to how much work you can do and is also a good indicator of the size of the tool than can be powered. Volts and amps by themselves are pretty meaningless and deceptive.

[@ksong1496]

Well, Dewalt might have some fault making it confusing, but to be honest, I don't know what's so confusing about it. 20V battery works with 20V tools. 40V battery works with 40V tools. 60V battery works with 60V tools. Up to this point, SAME TO ANY COMPANY. But Dewalt just adds one more here. 60V battery works with 20V tools. This just ONE additional thing is so confusing? Well, well...

[@jamesf9610]

Kyong Song not really there is just a pc on the 60 volt tools that switches the cells from running in parallel to a series setup giving less ah but more Volts

[@thecloneguyz]

Don't be the idiot that puts a flexvolt battery on a non XR tool because you will find out real fast how quickly they destroy them

[@allie675]

i just got the circular saw about a months ago with the flex volt 60 battery and well the saw is great but the batteries won't charge after a few times of use not sure why that is i had to return them twice now

[@WorkshopAddict]

Lithium-Ion batteries are sensitive to over draining. If they get too low on charge, it hurts them. If this happened twice, I would return the saw and the batteries and start over. Your saw might be what is killing the batteries, rather than you getting bad batteries.,

[@allie675]

i use the battery until the light starts to flash then i put it on the charger

[@Stump51]

Because its dewalt. Mmaakkiittaa, makia

[@stephencrandellsr4915]

What batteries fit witch tools

[@lokita2491]

6.Α 54V Bateri which tool do we use?

[@markallen4001]

Can you run both types of batteries in a tool?

[@WorkshopAddict]

Only in 20 volt tools

[@dvang81]

the 40v(7.5ah) battery is quite big n heavy.. the 60v(6ah n 9ah) of the 20v is are best

[@WorkshopAddict]

dee gee do you know why the 40 volt 7.5 Ah is heavy? Because it is a 40 volt 7.5ah battery. The Flexvolt 6.0 ah is 2.0ah at 60 volt, 6.0ah in 20 volt. The Flexvolt 9.0 is a 3.0ah in 60 volt and 9.0 ah in 20 volt.

[@achrisofalltrades5620]

Getting a lil too close to half a car battery (40v) 😒 Might as well plug in lol

[@lawnmowerdude]

Not for outdoor power equipment.

[@romanfields7900]

Except when there is no plug in. That said, these little generators are getting better and better.

[@achrisofalltrades5620]

@@romanfields7900 absolutely, still better than looking for an outlet in the middle of nowhere, or worse yet lugging around a generator for that one hole, or cut lol

[@randybobandy9828]

@@lawnmowerdude lol maybe in size but not in weight.

[@welcometomychannelswelcome7261]

Only way I looked at it more voltage is top speed, more ah last longer and more watts more power?

[@geraldmoore6257]

More voltage is not about speed. That's motor design. Amp hours only relates to "last longer" within a voltage platform and more watts is not power output, just total power. So, all of your assumptions are misleading you. High voltage just allows the tool to have a smaller motor with thin wires. Watt hours means "lasts longer." Listen to video @ 4:30. Power is wattage output: For example a Lithium 16850 "cell" is 3.6V and 20 amp output so it can output about 70 watts (3.6x20). Ten of them can output 700 watts. The Flexvolt uses 20700 that can output 100 watts each, so 15 of them can run a 1500 watt tool. The 40V commercial has 10 cells, but they are 26650 cells with 70A continuous discharge 120A so 70A x 3.6V x 10cells is 2520 watts and that's more than typical corded tools. Look at your corded tools. They always express their power as wattage. For example a 1500 watt corded chainsaw. The same is true of battery tools, but the tool companies keep you in the dark. I baffles me as to why this is.

[@wisconsinlife3971]

Have the flex 6ah batter with my ice auger... not very happy with the amount of holes I can get ... I actually returned the battery stating it was defective but the new one is the same..does the switch between 20 and 60v eat up the life of the battery and if so how do you eliminate the 60v switching?

[@MrSummitville]

The 60 V Flex battery pack automatically "switches" from 20 volts to 60 volts as needed per the device. There is nothing you can do about that ...

[@wisconsinlife3971]

@@MrSummitville might be better off using a non flex battery then

[@MrSummitville]

@@wisconsinlife3971 Amp-Hours is Amp-Hours, so use the largest Amp-Hour battery that will fit. It does not matter if the battery is 20V MAX, 20V XR or 60V FLEX. Just beware, the larger the AH the battery, the longer the continuous runtime = more HEAT in the motor & electronics.

[@MyFortressConstruction]

How can they make a 5ah battery only twice as big as a 2ah. Last time I checked 2+2=4... Did they use better cells?

[@WorkshopAddict]

My Fortress Construction yes they used 2.5 amp hour batteries. They also have 3.0 amp hour batteries out now.

[@MyFortressConstruction]

As far as I know, there are only 1.3, 1.5, 2, 3, 4, 5, 6 and 9ah batteries available. No 2.5s...

[@jamesf9610]

They used larger individual cells within the packs to get a larger ah rating. If you use 5 2000 mah cells you get 10,000mah or 1 ah if you use 5- 3000 mah cells you get 30,000 mah or 3 ah

[@0hypnotoad0]

​@@MyFortressConstruction Seems only Hilti puts the 2500 mah cells in their compact packs, I think just because they bulk purchase 2500 mah cells for everything. (2.6 ah, and 5.2 ah for their two types of batteries) Before you ask, 2.5 ah is just an approximation, Hilti tested the cells and they are specifically closer to 2.6 ah, thus they rated them as such.

[@CashApp-HelpMeStayAlive]

Im going with the 6 . Because upside down is a Nine and i can Just have both if im Hanging by my boots not vertical . Summer Project. . 6 thumbs up . Is also 9 thumbs down . 69 Her in my tool shop .

[@psycholarge]

Lol

[@romanfields7900]

is it beer 30 over there?

[@DaDaDo661]

This is poetry

[@jedidiah5131]

I look at it like car batteries, wired in series or parallel...

[@michaelc7283]

Brian, The DeWalt flexvolt 6.0ah / 60v uses the 18650 cells in them. Does the 9.0ah / 60v use the same cells or is it the 21700 cells?

[@WorkshopAddict]

9 and 12 use 21700

[@michaelc7283]

@@WorkshopAddict Good to know. Thank you.

[@henryk1031]

I’ve found the smaller flexvolt tools not worth it like the grinder circ saw etc. not much more power and very short run time.

[@NightshiftCustom]

thats the big problem with there 60v tools is you lose the AH so there no run time like on big tools 2-3AH? its nothing

[@henryk1031]

I got the 9.0 that's 4.0 a.h on the flex volt tools since I made this comment. I was using the 6.0s before and it's actually pretty good. Happy with run time but makes the tools heavy.

[@NightshiftCustom]

@@henryk1031 a 9.0ah is only 3.0ah at 60 volts. 9 div by 3= 3 simple they use 3 banks of 5 cells to make the 60v max as they call it there are 15 cell in the flex packs

[@henryk1031]

I know but it runs a lot longer then your average 3.0 pulling off all the cells.

[@jayliel5454]

Those are some big batteries. Just Big batteries, big uns. Yup.Yessiree.

[@Belg1970]

The 20v 60v flex batteries are able to be charged by a standard 20v charger????

[@WorkshopAddict]

Yes, the Flexvolt packs are charged in the 20 volt form, same as the 5.0Ah 20 volt max battery is.

[@michaelstjohn6086]

Yes, but it is slooooow!

[@WorkshopAddict]

Michael StJohn Yes, most high Ah batteries do charge slow.....

[@michaelstjohn6086]

Bought the flex volt circular saw yesterday that comes with the air cooled fast charger = 30 min compared to the standard 20 volt = 2 1/2 hours. 

[@WorkshopAddict]

Michael StJohn That charger, and saw, rocks! It is nice that you can use any 20 volt charger if needed.

[@henryk1031]

And now 40v is pretty much gone lol.

[@MrRoverpilot]

Not really , the platform is used for mowers, blowers etc I have the back pack blower with 2 -7.5V batteries 🔋 works great

[@henryk1031]

@@MrRoverpilot 40v is totally dead in the u.s all the new mowers and yard tools are 20 or 60v and have been for a few years now.

[@mikeglanzer616]

So, wud a 60v battery work on a 20v weedeater?

[@WorkshopAddict]

Yes, the 60-Volt Flexvolt will work on any 20 volt tool, including a string trimmer

[@Kevin-ip8uf]

it's not that confusing. people should just become electricians in their spare time, it's pretty easy and anyone can do it.

[@geraldmoore6257]

Or have paid attention in science classes in high school.

[@julianfs35]

Today battery are more expensive than the tool😮😮

[@cdoublejj]

They cheap on plastics and metals, check out AVE channel sometime. also though IF they are sing top quality 18650s in there yeah those prices can add up too.

[@Superdan187211]

There's actually three layers of cells in that 5 amp hour battery. but there is different types of cells in that 6 amp hour battery.

[@WorkshopAddict]

The 5.0 Ah has two layers of 2.5 Ah batteries. It is not 3P.

[@Superdan187211]

@@WorkshopAddict . It looks like I was wrong. I only get to do that once a year. They don't transfer over so I had to use it up. 😑

[@kc0lif]

wired 20 volt parallel where flexvolt 20 volt parallel but when used with flexvolt tools it kicks a switch electrically and a manual switch to series making 60 volts. on the 9ah batteries the price more scary than weight they not heavy.