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frontpage Posted by Rokket | Staff • Yesterday
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frontpage Posted by Rokket | Staff • Yesterday

Kobalt 24V Ultimate Output 8Ah Lithium-ion Power Tool Battery

+ Free Shipping

$59

$139

57% off
Lowe's
15 Comments 5,514 Views
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Deal Details
Lowe's has Kobalt 24V Ultimate Output 8Ah Lithium-ion Power Tool Battery on sale for $59. Shipping is free.

Thanks to Deal Hunter Rokket for finding this deal.

Product Details:
  • Compatible with all Kobalt 24-volt max cordless power tools (sold separately)
  • Utilizes the latest battery cell technology that high energy 24V power tools demand
  • Battery pack is optimized for use with XTR tools
  • Power indicator displays charge status and can be used whether the battery is on the tool or off
  • Internal circuitry protects the battery pack from extreme temperatures, over-discharge, and over-charge for longer life

Editor's Notes

Written by oceanlake | Staff
  • Comes with a 3-year warranty.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by Rokket | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Lowe's has Kobalt 24V Ultimate Output 8Ah Lithium-ion Power Tool Battery on sale for $59. Shipping is free.

Thanks to Deal Hunter Rokket for finding this deal.

Product Details:
  • Compatible with all Kobalt 24-volt max cordless power tools (sold separately)
  • Utilizes the latest battery cell technology that high energy 24V power tools demand
  • Battery pack is optimized for use with XTR tools
  • Power indicator displays charge status and can be used whether the battery is on the tool or off
  • Internal circuitry protects the battery pack from extreme temperatures, over-discharge, and over-charge for longer life

Editor's Notes

Written by oceanlake | Staff
  • Comes with a 3-year warranty.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by Rokket | Staff

Community Voting

Deal Score
+15
Good Deal
Get Deal at Lowe's

Price Intelligence

Model: Kobalt Ultimate Output 24 8 Amp-Hour; Lithium-ion Power Tool Battery | KXB 824-03

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 4/19/2025, 08:42 PM
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Lowe's$149
Lowe's$149
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15 Comments

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Yesterday
236 Posts
Joined Apr 2013
Yesterday
cantcurecancer
Yesterday
236 Posts

Our community has rated this post as helpful. If you agree, why not thank cantcurecancer

Look at the reviews. Hidden beyond the fake aggregate and AI summary is a sea of reviews talking about how these things die after a few uses.
1
Yesterday
183 Posts
Joined Oct 2019
Yesterday
hoondawg
Yesterday
183 Posts
Quote from cantcurecancer :
Look at the reviews. Hidden beyond the fake aggregate and AI summary is a sea of reviews talking about how these things die after a few uses.

Hashtag: cantcuredeadbatteries
Yesterday
14 Posts
Joined Sep 2017
Yesterday
ddelarosa7777
Yesterday
14 Posts
In for 8 of these things. I love the Kobalt brand and they back their warranties as well so if any of these do die on me, they have a super easy 3 year warranty. Thank you for the deal!!
Yesterday
68 Posts
Joined Jan 2009
Yesterday
jimboz28
Yesterday
68 Posts
Quote from cantcurecancer :
Look at the reviews. Hidden beyond the fake aggregate and AI summary is a sea of reviews talking about how these things die after a few uses.
I think most of the reviews you're seeing on this are for the original 4.0aH ultimate output battery which was known to have issues. They usually died right outside the warranty window which is what happened to all of mine. This 8.0 AH has only been around since 2022 or so and I've not heard of it having the same issues but as always, caveat emptor and register it as soon as you get it
Yesterday
5,884 Posts
Joined Jun 2007
Yesterday
jackbauer24
Yesterday
5,884 Posts
I am tempted to grab the kobalt batteries and grab an adapter off Amazon and use it in my DeWalt fan and vacuum.

can a 24 v battery drop down current if I am using in a DeWalt 20 v fan and vacuum w/o frying the fan or the vacuum?

it is $8.07 per Ah, which is pretty good.
Last edited by jackbauer24 April 19, 2025 at 10:54 AM.
Expert
This user is an Expert in Home & Home Improvement
Yesterday
6,707 Posts
Joined Oct 2014
Yesterday
firebirdude
Expert
This user is an Expert in Home & Home Improvement
Yesterday
6,707 Posts
Quote from jackbauer24 :
can a 24 v battery drop down current if I am using in a DeWalt 20 v fan and vacuum w/o frying the fan or the vacuum?
The battery will deliver 24V to anything attached. But I'd do it anyway if I were you. lol
Yesterday
5,884 Posts
Joined Jun 2007
Yesterday
jackbauer24
Yesterday
5,884 Posts
Quote from firebirdude :
The battery will deliver 24V to anything attached. But I'd do it anyway if I were you. lol

There is a 3 d printed adapter off eBay for $32 plus shipping for using the kobalt battery on a DeWalt 20 v tools. That is 1/2 the price of the battery. So you're all in at $96 for the kobalt battery and the 3 d printed adapter.

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Yesterday
307 Posts
Joined Apr 2014
Yesterday
sttlesks
Yesterday
307 Posts
Quote from jimboz28 :
I think most of the reviews you're seeing on this are for the original 4.0aH ultimate output battery which was known to have issues. They usually died right outside the warranty window which is what happened to all of mine. This 8.0 AH has only been around since 2022 or so and I've not heard of it having the same issues but as always, caveat emptor and register it as soon as you get it
Does this apply to current stock of 4.0ah UO batteries or particular year releases?
Yesterday
16 Posts
Joined Mar 2009
Yesterday
petedameat
Yesterday
16 Posts
Buy once cry once...stick with Milwaukee. Their Forge m18 batteries seem pretty well built
1
2
Expert
This user is an Expert in Home & Home Improvement
Yesterday
6,707 Posts
Joined Oct 2014
Yesterday
firebirdude
Expert
This user is an Expert in Home & Home Improvement
Yesterday
6,707 Posts
Quote from jackbauer24 :
There is a 3 d printed adapter off eBay for $32 plus shipping for using the kobalt battery on a DeWalt 20 v tools. That is 1/2 the price of the battery. So you're all in at $96 for the kobalt battery and the 3 d printed adapter.
Adapting the connectors was never an issue. He asked about the difference in voltages specifically.
Yesterday
1,410 Posts
Joined Aug 2008
Yesterday
WildRigger47
Yesterday
1,410 Posts
Quote from firebirdude :
Adapting the connectors was never an issue. He asked about the difference in voltages specifically.
The original poster stated he planned on getting an adapter, which he obviously would need. Jackbauer24 reasonably focused on the price point of the total invested doing it that way.
Yesterday
21 Posts
Joined Feb 2017
Yesterday
adnoh
Yesterday
21 Posts
What's the difference between these and the blue extended run time batteries that usually come with the tools?
2h ago
307 Posts
Joined Nov 2011
2h ago
jmmarsh2
2h ago
307 Posts
Quote from adnoh :
What's the difference between these and the blue extended run time batteries that usually come with the tools?
these use 21700 cells that can supply higher current (samsung 50T), the regular ones use 18650 cells in a 2P configuration.
2h ago
76 Posts
Joined Feb 2022
2h ago
NavyWallaby579
2h ago
76 Posts
Quote from adnoh :
What's the difference between these and the blue extended run time batteries that usually come with the tools?

They have potential for a higher discharge rate which some but not all tools take advantage of. If you want to get the most torque out of tools like impact drivers/wrenches and circular saws use ultimate output. Ive mostly switched to Ridgid tools but im in for 2 because I absolutely love my aging Kobalt XTR impact driver and the sole 4ah ult output battery I've got for it is starting to not hold a charge like it used to. This is a crazy low price for an 8ah battery running 12x 21700 cells.

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