Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Heads up, this deal has expired. Want to create a deal alert for this item?
  1. Deal Image
Item 1 of 3
  1. Deal Image
  2. Deal Image
  3. Deal Image
Item 1 of 3
expiredRokket | Staff posted Apr 19, 2025 6:19 AM

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

$59

$139

57% off
+ Free Shippingat Lowe's
16 Comments
10K Views
Visit Lowe's
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
  • 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
  • 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
+20
Good Deal
Visit Lowe's

Price Intelligence

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

Deal History 

Sale Price
Slickdeal
  • $NaN
  • Today

Top Comments

ddelarosa7777
18Comments
10Reputation
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!!
Go to Comment

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

16 Comments

Sign up for a Slickdeals account to remove this ad.

Apr 19, 2025 9:31 AM
249 Comments
Joined Apr 2013
cantcurecancerApr 19, 2025 9:31 AM
249 Comments

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
1
Apr 19, 2025 11:46 AM
351 Comments
Joined Oct 2019
hoondawgApr 19, 2025 11:46 AM
351 Comments
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
Apr 19, 2025 1:08 PM
18 Comments
Joined Sep 2017
ddelarosa7777Apr 19, 2025 1:08 PM
18 Comments
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!!
Apr 19, 2025 1:33 PM
79 Comments
Joined Jan 2009
jimboz28Apr 19, 2025 1:33 PM
79 Comments
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
Apr 19, 2025 5:45 PM
6.4K Comments
Joined Jun 2007
jackbauer24Apr 19, 2025 5:45 PM
6.4K Comments
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
Apr 19, 2025 9:02 PM
7.5K Comments
Joined Oct 2014
firebirdude
Expert
This user is an Expert in Home & Home Improvement
Apr 19, 2025 9:02 PM
7.5K Comments
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
1
Apr 19, 2025 9:04 PM
6.4K Comments
Joined Jun 2007
jackbauer24Apr 19, 2025 9:04 PM
6.4K Comments
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.
1

Sign up for a Slickdeals account to remove this ad.

Apr 19, 2025 9:04 PM
363 Comments
Joined Apr 2014
sttlesksApr 19, 2025 9:04 PM
363 Comments
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?
Apr 19, 2025 9:51 PM
16 Comments
Joined Mar 2009
petedameatApr 19, 2025 9:51 PM
16 Comments
Buy once cry once...stick with Milwaukee. Their Forge m18 batteries seem pretty well built
3
3
Expert
This user is an Expert in Home & Home Improvement
Apr 19, 2025 10:03 PM
7.5K Comments
Joined Oct 2014
firebirdude
Expert
This user is an Expert in Home & Home Improvement
Apr 19, 2025 10:03 PM
7.5K Comments
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.
Apr 19, 2025 10:44 PM
1.6K Comments
Joined Aug 2008
WildRigger47Apr 19, 2025 10:44 PM
1.6K Comments
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.
Apr 19, 2025 11:29 PM
25 Comments
Joined Feb 2017
adnohApr 19, 2025 11:29 PM
25 Comments
What's the difference between these and the blue extended run time batteries that usually come with the tools?
Apr 20, 2025 12:10 AM
323 Comments
Joined Nov 2011
jmmarsh2Apr 20, 2025 12:10 AM
323 Comments
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.
1
Apr 20, 2025 12:25 AM
210 Comments
Joined Feb 2022
NavyWallaby579Apr 20, 2025 12:25 AM
210 Comments
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.

Sign up for a Slickdeals account to remove this ad.

Apr 20, 2025 4:07 AM
88 Comments
Joined Nov 2012
KoprivaMediaApr 20, 2025 4:07 AM
88 Comments
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.
The 4.0 High Outputs are atrocious. I've had seven of them fail. The 8.0s are okay. Of the three I've had, only one has failed.

Keep your receipts. I did and it made warranty swaps easy enough.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

Related Searches

Free ShippingHome & Home ImprovementToolsDrills & Power ToolsKobaltLowe's

Popular Deals

See All
Found by idk_then
Aug 4, 2026 4:19 AM
Forum Thread
Klein Tools 14-Piece 1/2" Drive SAE Deep-Well Impact Socket Set (65111IMPCT) $59.98 + Free Shipping$60$80
25% off
0
Found by phoinix
Aug 3, 2026 4:28 PM
Forum Thread
$1999 | DuroMax XP11000iH 11,000-Watt Dual Fuel Portable Digital Inverter Generator at Amazon$1,999$2,599
23% off
0
Found by Skillful_Pickle
Aug 3, 2026 5:39 PM
Forum Thread
PHF Lightweight Waffle Weave Blanket (Various) From $19.49 + FS w/ Prime or orders $35+$19$39
51% off
0
Found by Red_Liz
Aug 3, 2026 5:18 PM
Forum Thread
PINSPARK Men's UPF 50+ Sun Shirts Long Sleeve Rash Guard Hoodie (Various Colors) $9 + Free Shipping w/ Prime or on $35+$9.00$14
35% off
0
Found by Master-Shake
Aug 3, 2026 5:09 PM
Forum Thread
NIKOTEK Laser Measure $9.99$9.99$20
50% off
0

Trending Deals

See All
Found by doublehelixx
Yesterday 6:55 PM
Forum Thread
Daran 288Wh 600W Portable Power Station w/ LiFePO4 Battery & AC/DC Outlets $132.29 + Free Shipping$132$235
43% off
6
Found by BWRochMN
Today 12:46 AM
Forum Thread
YUHUO Smart Body Composition Scales (4-Electrode or 8-Electrode) – From $16.87$17$37
54% off
1
Found by phoinix
Yesterday 11:27 PM
Forum Thread
[NEW] $12.20 | Makita E-01074 Impact XPS™ T25 Torx 2" Power Bit, 15/pk at Amazon$12$18
33% off
1
Found by doema
Today 12:01 AM
Forum Thread
Apple Airpods Pro 3$169$249
32% off
9
Found by wileysmiley
Today 12:12 AM
Forum Thread
$7.49 AC - Hanes Racerback Bralette 3-Pack, Stretch Cotton Knit Low-Impact Bra, Moisture-Wicking Cotton T-Back Bra Top (various)$7.49$16
53% off
0