Archived from the Tools In Action forum (Dewalt). This thread is read-only.
Now, here’s another question for you guys? For running just 20v tools, would you recommend the flexvolt 6 or the xr 6.0 for your tools? What gives the better runtime? Most power?
I’m finding that there all getting a shorter and shorter run time…
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My primary / go-to is Hilti.
Hands down no joke real performance Never let you down.
Dewalt is my 2nd and used on interior job only.
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I would prefer the 60v you never know when you may pick up a 60v tool and it’s just nice to know that the battery will work in any tool you buy.
I cannot comment on the 20v but I now only run 3.0 compacts and Flexvolt 6.0/9.0 on my 20v tools. I sold all of my other batteries. Just a space management decision. The FV6.0 is big but I never run out of juice with those on.
The Flexvolt is more versatile when you can run any 20v or Flexvolt tool. You may not use Flexvolt tools now but if you ever do, it is nice to know that you have a few batteries that work in the Flex tools. If you are going with the 20v 6.0 you might as well just get the 20v 8.0 since it is same size.
I think that the xr 6.0 with 27100 cells are supposed to be better in some areas like runtime but I think the 15 cells in the flexvolt vs the 10 cells in the xr gives you a little more power. Dewalt isn’t my main battery platform so I haven’t really done an actual runtime test but I would think they have to be pretty comparable. I just know when I first got a 6.0 FV and put it on a dcd996 there was a noticable difference from the 5.0 in keeping rpms up and it made it less likely to stall as it was finishing a hole. Now with the 6.0xr it might have a little more power than the 5.0 but I don’t think it’s as noticable.
The 6.0 xr has the higher output cells versus the flex volt 2.0/ 6.0 running the older 18650s
You will get more performance and runtime on the xr 6.0 because of those cells compared to a flex battery. If you go into the 3/9 FV they have HO cells in it. You won’t notice those too much in lower demand tools but in an angle grinder you’ll be able to push a little harder.
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JimboS1ice wrote:
30 minutes ago, JimboS1ice said:The 6.0 xr has the higher output cells versus the flex volt 2.0/ 6.0 running the older 18650s
You will get more performance and runtime on the xr 6.0 because of those cells compared to a flex battery. If you go into the 3/9 FV they have HO cells in it. You won’t notice those too much in lower demand tools but in an angle grinder you’ll be able to push a little harder.
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Hoping it gives that extra juice on impacts, drills etc Grinder will be in the future for sure
but the 6.0 has 5 less cells than the Flex which means the 6.0 can only pull power from 10 cells at one time where as the Flex can pull from 15 at one time.
JimboS1ice wrote:
On 9/30/2019 at 6:45 AM, JimboS1ice said:The 6.0 xr has the higher output cells versus the flex volt 2.0/ 6.0 running the older 18650s
You will get more performance and runtime on the xr 6.0 because of those cells compared to a flex battery. If you go into the 3/9 FV they have HO cells in it. You won’t notice those too much in lower demand tools but in an angle grinder you’ll be able to push a little harder.
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Except the 2.0/6.0 uses 15 cells.
15x 18650s can definitely match (or even exceed) 10x 21700s.
And if Dewalt upgraded their 2.0/6.0 packs to the newest Samsung 30A 18650 cells then the Flexvolt packs could very well be capable of significantly more peak power output. It’s worth mentioning because the XR 6.0s & Flexvolt 9.0s were recently upgraded from Sanyo 20700s to the 21700 Samsung 30T. (The Sanyo 20700s were a 30A cell)
5s3p Samsung 20S = 90A max @ 18v. Or 30A @ 54V in Flexvolt mode.
5s2p Samsung 30T = 70A max @ 18v.
xrh07 wrote:
On 10/3/2019 at 12:16 PM, xrh07 said:Except the 2.0/6.0 uses 15 cells.
15x 18650s can definitely match (or even exceed) 10x 21700s.
And if Dewalt upgraded their 2.0/6.0 packs to the newest Samsung 30A 18650 cells then the Flexvolt packs could very well be capable of significantly more peak power output. It’s worth mentioning because the XR 6.0s & Flexvolt 9.0s were recently upgraded from Sanyo 20700s to the 21700 Samsung 30T. (The Sanyo 20700s were a 30A cell)
5s3p Samsung 20S = 90A max @ 18v. Or 30A @ 54V in Flexvolt mode.
5s2p Samsung 30T = 70A max @ 18v.
The xr 6.0 will slightly outperform the fv 6.0. I got 10 cuts of 150mm x 8mm thick flat bar with fv 6.0 and 10 1/4 cuts with xr 6.0. It was a xr 6.0 with 20700 and both tests were done with Dewalt’s 18v brushless 5” grinder