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expiredTaco_Doomsday posted Jun 13, 2026 4:02 AM

DEWALT FLEXVOLT 20V/60V MAX* 15.0Ah Battery $289

$289

$419

31% off
Fasteners Inc
9 Comments
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Deal Details
This deal is a Fastner's Inc. Saturday Flash Sale item. Price good through 6/13/26. Free shipping on orders over $150.00, otherwise it's about $8.00.

https://fastenersinc.net/product/...ah-battery
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Deal Details
Community Notes
About the Poster
This deal is a Fastner's Inc. Saturday Flash Sale item. Price good through 6/13/26. Free shipping on orders over $150.00, otherwise it's about $8.00.

https://fastenersinc.net/product/...ah-battery

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9 Comments

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Jun 13, 2026 11:18 AM
593 Posts
Joined Oct 2018
JohnnySlick777Jun 13, 2026 11:18 AM
593 Posts
Will this fit my 12v screwdriver?
1
Jun 13, 2026 1:40 PM
48 Posts
Joined Mar 2014
dand1Jun 13, 2026 1:40 PM
48 Posts
Lol, how many weeks will it continuously power my DCL040 light?
Jun 13, 2026 2:38 PM
1,251 Posts
Joined Nov 2016
-Ardit-Jun 13, 2026 2:38 PM
1,251 Posts
PSA: only plug this into 60v tools.
Jun 13, 2026 2:46 PM
188 Posts
Joined Apr 2006
pokerstar54Jun 13, 2026 2:46 PM
188 Posts
Quote from -Ardit- :
PSA: only plug this into 60v tools.
Or....?
Jun 13, 2026 4:20 PM
1,251 Posts
Joined Nov 2016
-Ardit-Jun 13, 2026 4:20 PM
1,251 Posts
Quote from pokerstar54 :
Or....?

Or they die prematurely. Have 1/3 die after using it on a 20v blower. Now it runs the tool for like 20 seconds and cuts off power. Charges just fine.
Jun 13, 2026 4:29 PM
861 Posts
Joined Apr 2008
c3688tJun 13, 2026 4:29 PM
861 Posts
Quote from -Ardit- :
Or they die prematurely. Have 1/3 die after using it on a 20v blower. Now it runs the tool for like 20 seconds and cuts off power. Charges just fine.
Seriously? Using the 60v flex battery on a 20v tool will damage the battery or the tool itself? That's a lot of money for a faulty design.
Jun 13, 2026 4:41 PM
188 Posts
Joined Apr 2006
pokerstar54Jun 13, 2026 4:41 PM
188 Posts
Quote from -Ardit- :
Or they die prematurely. Have 1/3 die after using it on a 20v blower. Now it runs the tool for like 20 seconds and cuts off power. Charges just fine.
Is it a Dewalt blower? Or an off brand?

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Jun 13, 2026 4:43 PM
1,107 Posts
Joined Mar 2016
eddie277Jun 13, 2026 4:43 PM
1,107 Posts
Quote from c3688t :
Seriously? Using the 60v flex battery on a 20v tool will damage the battery or the tool itself? That's a lot of money for a faulty design.
I haven't heard of this issue anywhere b4. Not saying its bot true but I haven't heard it til now. I've been using mine on the new 18" dewalt fan. Seems fine but haven't had it that long. Everyone else i use it on is a flexvolt tool anyways. Now the battery has a label stating not to use it on i think dccs670 which is the flexvolt 16" chainsaw. I don't have that saw. Idk why not to but dewalt says not to and that is a legitimate tool ppl may want use it on if you don't have the bigger flexvolt chainsaws
Jun 13, 2026 6:48 PM
43 Posts
Joined Feb 2012
sc300ftwJun 13, 2026 6:48 PM
43 Posts
Quote from c3688t :
Seriously? Using the 60v flex battery on a 20v tool will damage the battery or the tool itself? That's a lot of money for a faulty design.
From what i understand the two black tabs on the leading edge of the tool push physical bus bars together to put the 3 cell banks in series vs paralell. If you have a dewalt tool that uses every pin (not a cheapo + - only tool) the battery outputs exactly what the tool needs 20 / 60. Thats how the standard charger can charge / balance cells in these Smilie

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