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 5
  1. Deal Image
  2. Deal Image
  3. Deal Image
  4. Deal Image
Item 1 of 5
expiredqcrican posted Jan 5, 2023 7:52 AM

Southwire 12/3 3-Prong Outdoor Heavy Duty Lighted Extension Cord: 100' $35, 50'

$26

$74

64% off
& More + Free Curbside Pickupat Lowe's
170 Comments
85.9K Views
Visit Lowe's
Deal Details
Select Lowes Stores has select Southwire 12/3 3-Prong Outdoor SJTW Heavy Duty Lighted Extension Cord (various sizes) on sale listed below. Select free curbside pickup if stock permits.

Thanks to community member qcrican for finding this deal

Note, curbside pickup may vary depending on location; not all locations may have pricing/stock

Available Option(s)Warranty
  • Includes a limited lifetime warranty w/ purchase

Editor's Notes

Written by Discombobulated | Staff
  • Pricing may vary from location/stores; check online/stores for pricing
  • Lighted end shows power is on/cord is ready to use
  • 15 Amps/125 V/1875W/UL Certified & weather resistant jacket product
  • Offer valid while promotional price/supplies last
Additional Notes
  • Please refer to the forum thread for additional details - Discombobulated

Original Post

Written by qcrican
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Select Lowes Stores has select Southwire 12/3 3-Prong Outdoor SJTW Heavy Duty Lighted Extension Cord (various sizes) on sale listed below. Select free curbside pickup if stock permits.

Thanks to community member qcrican for finding this deal

Note, curbside pickup may vary depending on location; not all locations may have pricing/stock

Available Option(s)Warranty
  • Includes a limited lifetime warranty w/ purchase

Editor's Notes

Written by Discombobulated | Staff
  • Pricing may vary from location/stores; check online/stores for pricing
  • Lighted end shows power is on/cord is ready to use
  • 15 Amps/125 V/1875W/UL Certified & weather resistant jacket product
  • Offer valid while promotional price/supplies last
Additional Notes
  • Please refer to the forum thread for additional details - Discombobulated

Original Post

Written by qcrican

Community Voting

Deal Score
+145
Good Deal
Visit Lowe's

Top Comments

hpmax
71Comments
26Reputation
I'm an electrical engineer. My advice is neither wrong, nor dangerous, but you did misread it. If he is charging a 12V battery and delivering 40A to the battery, the absolute maximum POWER that is being delivered to the battery is about 600 watts. The battery charger itself is not 100% efficient, if we assume it's 50% efficient worst case (and that strikes me as particularly bad) then the maximum instantaneous dissipation is 1200W (half in the charger, and half delivered to the battery). This assumes 100% of the power is coming from the wall, which may not be the case, since the 40A is in "starter mode", and likely had stored some energy in the charger.

So the question is how much current will be pulled through the extension cord. If you dissipate 1200W at 120V, that's 10 amps going through the extension cord (assuming a power factor of 1, I hope this is mostly reasonable), which gives you pretty good margin on the15A limit. It's also worth pointing out that "starting mode" means inherently that you aren't running it for more than a few seconds. If 12 gauge wire is rated for 15A , that almost certainly means continuously (12 gauge NM Romex would typically be rated for 20A continuous)... So, even if you exceeded 15A for a few seconds, it's a non-issue since heat takes a while to build up. It's pretty common for 120V welders to exceed 15A when the arc is first being struck, and it generally doesn't matter, the breakers don't even notice. In other words, there's a huge amount of margin.

What's more, most 120V single phase house wiring in the US is 12 or 14 gauge which is rated for 20A or 15A respectively, and tied to a 20A or 15A breaker respectively. So, it'd be really odd to manufacture a battery charger that exceeds 15A over more than a second or two since many breakers would be unhappy with it.
Go to Comment
madcow3417
1.6KComments
575Reputation
I was having this problem with other links. Ad-Block-Plus ended up being the problem.
Go to Comment
ghostwriter66
4.1KComments
445Reputation
Electrician here -- this is a GREAT deal ... you need to educate yourself on difference between 12 / 14 / 16 awg wire ...
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!

170 Comments

Sign up for a Slickdeals account to remove this ad.

Jan 5, 2023 4:56 PM
6.6K Comments
Joined Feb 2006
karrunJan 5, 2023 4:56 PM
6.6K Comments
Quote from Brendan1901 :
this will power your space heater just fine. 12/3 is capable of 15amps. the reason they say not to use extension cords is people will plug a 2k watt space heater into a christmas grandma special extension cord and wonder why it burned down.

Thanks!
Jan 5, 2023 5:03 PM
469 Comments
Joined Nov 2012
VoJA20xJan 5, 2023 5:03 PM
469 Comments
how are these compared to Iron Forge cables that I see on Amazon?

Also for a Tesla mobile connector charging, will a 10/3 be better than 12/3?
1
Jan 5, 2023 5:10 PM
432 Comments
Joined Sep 2010
lovespicyfoodJan 5, 2023 5:10 PM
432 Comments
I have had this exact 100' cord for 3 1/2 years for electric lawn equipment. It has started to split in a few places where the inner wires (coated) have begun to stick out of the main covering. I continue to use it but was looking for a replacement.

I used to roll it up on a wheel but learned that wasn't a good way to store it and have use the recommended way for the last 1 plus years. Hoping that this recommended way keeps the next cord in better shape longer.
Jan 5, 2023 5:13 PM
48 Comments
Joined Nov 2017
twbradfordJan 5, 2023 5:13 PM
48 Comments
I added the 50ft to cart for 25. The price ofvthe item jumped to 75. I was able still checkout for 25.00 x 2.

I really wanted 25ft but I will take 50 for 25 rather than 25 for 44.00.

I guess either Lowes was taking a beating or made a pricing mistake...

Edit....

Seems to be store dependent. So try stores in other cities for the discount price but then change the item location to your local store then add to cart.

I need a store that has the 25 for 15.....
Last edited by twbradford January 5, 2023 at 09:25 AM.
Jan 5, 2023 5:29 PM
96 Comments
Joined Oct 2020
MellowApple753Jan 5, 2023 5:29 PM
96 Comments
Seems like I missed it ... 15+ stores around here are back up to normal pricing.
Jan 5, 2023 5:40 PM
2K Comments
Joined Aug 2007
munkleJan 5, 2023 5:40 PM
2K Comments
These all went out of stock around me when the 100'' was $50.
Jan 5, 2023 5:42 PM
1.7K Comments
Joined Aug 2011
Lefty421Jan 5, 2023 5:42 PM
1.7K Comments
I just got back from Lowes, picking up my (10) cords.

FYI, these things are Red, White, and Blue in honor of the Wounded Warrior Project, of which Southwire is a sponsor.

Lowes' new locker pickup option is a big improvement over their old pickup system. very quick and hassle free,.

Thanks again OP!

Sign up for a Slickdeals account to remove this ad.

Jan 5, 2023 5:48 PM
188 Comments
Joined Mar 2014
bencodymikeJan 5, 2023 5:48 PM
188 Comments
Grabbed a 100' in Bloomfield Ct. worker told me he had just sold 8 of them and was looking for the other 7 it showed in stock. I found 1 that was out of place but couldn't find the 25 or 50 footers. Some contractor was trying to buy all they had.
Jan 5, 2023 5:56 PM
1 Comments
Joined May 2022
SharpCarpenter4889Jan 5, 2023 5:56 PM
1 Comments
Nice! Was able to buy 2 50' in Northern Virginia. Thanks OP!

Edit: Lowes just called and cancelled saying it's out of stock.
Last edited by SharpCarpenter4889 January 5, 2023 at 10:06 AM.
Jan 5, 2023 5:59 PM
16K Comments
Joined Nov 2019
LilylyJan 5, 2023 5:59 PM
16K Comments
Quote from bencodymike :
Grabbed a 100' in Bloomfield Ct. worker told me he had just sold 8 of them and was looking for the other 7 it showed in stock. I found 1 that was out of place but couldn't find the 25 or 50 footers. Some contractor was trying to buy all they had.
which one is the better buy? 25,50 or 100? i know it all depends on what we need. but its an impulse buy for me.
1
Jan 5, 2023 6:02 PM
42 Comments
Joined Oct 2013
chaomanJan 5, 2023 6:02 PM
42 Comments
I am seeing $44.58 for 25' in zip code 94555.
Jan 5, 2023 6:06 PM
123 Comments
Joined Jun 2015
calpolycrewJan 5, 2023 6:06 PM
123 Comments

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

Quote from dabargainhunter :
HD and Lowe's links through SD are opening and closing immediately. No other link does so. Please fix that glitch.
Disable your ad blocker or pop up blocker.
1
Jan 5, 2023 6:08 PM
698 Comments
Joined Dec 2018
WiseSwallow794Jan 5, 2023 6:08 PM
698 Comments
These are HEAVY. good deal.
Jan 5, 2023 6:11 PM
188 Comments
Joined Mar 2014
bencodymikeJan 5, 2023 6:11 PM
188 Comments
Quote from Lilyly :
which one is the better buy? 25,50 or 100? i know it all depends on what we need. but its an impulse buy for me.
I was just purchasing for one of my sons that recently bought a house. Was trying to get one of each. Just let me order a 25' and 50' for in store pickup but pretty sure it will be canceled because they won't be able to find them. Worth a shot. 100' seems like a great deal.

Sign up for a Slickdeals account to remove this ad.

Jan 5, 2023 6:18 PM
2.4K Comments
Joined Nov 2011
GrandmasterBBCJan 5, 2023 6:18 PM
2.4K Comments
What a bummer. Nothing available for me in Idaho. I've been waiting for a deal on a 100 ft extension cord just like this. The hunt continues.

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

Home & Home ImprovementGardening & OutdoorGarden & Outdoor ToolsHome DecorToolsDrills & Power ToolsHome Security & Safety

Popular Deals

See All
Found by Rokket
Jul 29, 2026 4:51 AM
Forum Thread
Better Homes & Gardens Springwood Caning Bar Cabinet (Charcoal) $78.98 + Free Shipping$79$124
36% off
0
Found by pennysave
Jul 30, 2026 10:35 AM
Forum Thread
Select Accts[AC,S&S] 32 Ct Seventh Generation Laundry Detergent Sheets Lavender $6.47 + Free S&H w/ Prime or $35+$6.47$15
56% off
0
Found by DesertGardener
Yesterday 9:58 PM
Forum Thread
Marvel's Spider-Man 2 (PC, Steam Code) $31.99$32$60
46% off
3
Found by htp182
Jul 30, 2026 3:14 AM
Forum Thread
3-Count Fruit by the Foot Berry Tie Dye Mini Snacks $0.95 w/ S&S + Free Shipping w/ Prime or on $35+$0.95$1.00
5% off
1
Found by TattyBear
Jul 30, 2026 5:03 PM
Forum Thread
10.25" Mercer Culinary Pre-Seasoned Cast Iron Skillet $10.46 + Free Shipping w/ Prime or on $35+$10$17
41% off
3

Trending Deals

See All
Found by Dr.W
Yesterday 8:20 PM
Forum Thread
Lenovo Legion Tab Gen 5: 8.8" 3K 165Hz IPS, Snapdragon 8 Elite Gen 5, 12GB LPDDR5, 256GB UFS $622.44$622$850
26% off
14
Found by phoinix
Today 5:09 AM
Forum Thread
from $169.99 | Amazon Fire 4K Smart TVs at Woot!
2
Found by Tel06c
Today 1:39 AM
Forum Thread
Walgreens Has Nice! Juice 64 oz Bottles On Clearance ( 3 Flavors ) $0.79$0.79$3.59
77% off
5
Found by neomatrixviper
Today 2:51 AM
Forum Thread
Berry Gordy’s The Last Dragon 4K Ultra HD SteelBook (4K Ultra HD + Blu-ray + Digital) $16.59 Amazon.com
2
Found by hocuspocusblade
Today 12:38 AM
Forum Thread
Amazon Grocery, Chicken Broth, 35% Less Sodium, 32 Oz (Previously Amazon Fresh, Packaging May Vary)~$1.13 With S&S @ Amazon~Buy 4 & Save More!$1.13
3