Item 1 of 5
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
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& More + Free Curbside Pickupat Lowe'sDeal 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)
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)
- 25' Southwire 12/3 3-Prong Outdoor SJTW Heavy Duty Lighted Extension Cord (Red, White & Blue) $15.64
- 50' Southwire 12/3 3-Prong Outdoor SJTW Heavy Duty Lighted Extension Cord (Red, White & Blue) $25.84
- 100' Southwire 12/3 3-Prong Outdoor SJTW Heavy Duty Lighted Extension Cord (Red, White & Blue) $34.94
- 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
- Please refer to the forum thread for additional details - Discombobulated
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)
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)
- 25' Southwire 12/3 3-Prong Outdoor SJTW Heavy Duty Lighted Extension Cord (Red, White & Blue) $15.64
- 50' Southwire 12/3 3-Prong Outdoor SJTW Heavy Duty Lighted Extension Cord (Red, White & Blue) $25.84
- 100' Southwire 12/3 3-Prong Outdoor SJTW Heavy Duty Lighted Extension Cord (Red, White & Blue) $34.94
- 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
- Please refer to the forum thread for additional details - Discombobulated
Community Voting
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Top Comments
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.
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Our community has rated this post as helpful. If you agree, why not thank barreled
For simple example imagine sending 20 people through tunnel that can only fit 15 wide and ask them how they feel about it.
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Our community has rated this post as helpful. If you agree, why not thank hpmax
For simple example imagine sending 20 people through tunnel that can only fit 15 wide and ask them how they feel about it.
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.
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