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XR 6.0 vs flexvolt 6.0, what's your take?


07Sierra

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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.

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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.

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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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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 

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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. 

 

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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 

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