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expiredphoinix | Staff posted Aug 16, 2025 07:48 AM
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expiredphoinix | Staff posted Aug 16, 2025 07:48 AM

NOCO GENIUS1 Smart Car Battery Charger

$24

$40

40% off
Amazon
75 Comments 53,540 Views
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Deal Details
Update: This popular offer is available again.

Amazon has NOCO GENIUS1 Smart Car Battery Charger on sale for $23.96. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for sharing this deal.

Product Details:
  • Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lithium-ion batteries (lifepo4).
  • Charges and maintains all types of vehicles, including cars, automobiles, motorcycles, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, classic cars, and more.

Editor's Notes

Written by johnny_miller | Staff
  • About this Offer:
    • This sale price matches this popular Frontpage Deal from July 2025 which received over 70 Thumbs Up from the community.
  • Reviews:
  • Amazon Return Policy:
    • This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
  • About the store:

Original Post

Written by phoinix | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular offer is available again.

Amazon has NOCO GENIUS1 Smart Car Battery Charger on sale for $23.96. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for sharing this deal.

Product Details:
  • Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lithium-ion batteries (lifepo4).
  • Charges and maintains all types of vehicles, including cars, automobiles, motorcycles, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, classic cars, and more.

Editor's Notes

Written by johnny_miller | Staff
  • About this Offer:
    • This sale price matches this popular Frontpage Deal from July 2025 which received over 70 Thumbs Up from the community.
  • Reviews:
  • Amazon Return Policy:
    • This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
  • About the store:

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+112
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Top Comments

3JABO
861 Posts
330 Reputation
buyer beware: do NOT buy the one "used" unit thats available on Amazon right now. it was likely mine. I purchased it used-like new, when I received it, one of the prongs that goes into the wall was broken off. I returned it same day, and see that there's now a new Used - like new available for sale again. this is probably the same unit.
cmac2728
507 Posts
102 Reputation
I've got 4 of these on mowers, ATVs, and a truck that sits for prolonged periods to keep the batteries charge. Even use it to recharge depleted batteries from a solar setup. Works well to maintain batteries over long periods but don't expect it to bring back a fully drained battery.
obtuseness
39 Posts
24 Reputation
I bought this about 5 years ago to keep a car battery I wasn't using often alive. Worked great. My only complaint is that I wish the battery lead wires were twice as long. While connecting it to a battery still in the car it's a little too short to reach from any good spot for me, and the unit was left dangling. It worked, but I ended up rigging something for the unit to rest on because I'm not a fan of things hanging from their wires

74 Comments

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Pro
Aug 16, 2025 07:59 PM
785 Posts
Joined May 2012
luddite_cyborg
Pro
Aug 16, 2025 07:59 PM
785 Posts
Quote from geekwithoutacause :
10+ ??? What for ? These are battery maintainers and not meant for charging. The biggest I have is a 4amp maintainer (dewalt branded) that I have on a large backhoe that has 2 giant batteries. It gets hooked up as soon its parked. Batteries are lasting forever this way.
For charging speed, of course; sometimes you need a dead battery working in a few hours, not days. Even NOCO has a 10A for $80. I don't want just a low-amp charger ("maintainer"), I want a charger.
1
Aug 16, 2025 08:05 PM
1,467 Posts
Joined Mar 2007
l0lAug 16, 2025 08:05 PM
1,467 Posts
https://www.amazon.com/dp/B097D397M6 seems a better deal. It has 10A@12V charging speed, 10X faster. It has 24V charging option, but without 6V. Other charging features are about the same @ $1 less. Am I missing something?
2
Pro
Aug 16, 2025 08:09 PM
785 Posts
Joined May 2012
luddite_cyborg
Pro
Aug 16, 2025 08:09 PM
785 Posts
Quote from l0l :
https://www.amazon.com/dp/B097D397M6 seems a better deal. It has 10A@12V charging speed, 10X faster. It has 24V charging option, but without 6V. Other charging features are about the same @ $1 less. Am I missing something?
Yeah there's a bunch of cheaper ones but can't trust amazon 5-star reviews, that's why I also asked here, hoping an expert can spare us the time of having to do a deep dive comparing the myriad of chargers out there
Aug 16, 2025 08:38 PM
5,979 Posts
Joined Aug 2012

This comment has been rated as unhelpful by Slickdeals users.

Aug 16, 2025 08:39 PM
5,979 Posts
Joined Aug 2012
poohead123Aug 16, 2025 08:39 PM
5,979 Posts
Quote from metlfan2003 :
I had one of these that just flat out died a few weeks ago. Had used it off and on a handful of times over the last several years, but decided to leave it on my riding mower full-time to keep the battery topped off. I came out a week or so later and it was totally DOA. No lights, no response to button presses - just gone. I have no clue why it died, but prior to this, I had a cheap $20 Shumacher 3A charger/maintainer on that same battery for over five years with no issues. Not sure what all can go wrong with something like this, but it's completely sealed and unserviceable, so I guess it'll just have to toss it.
Very common for nocos to fail quickly
2
2
Aug 16, 2025 09:28 PM
1,382 Posts
Joined Sep 2018
gathermewoolAug 16, 2025 09:28 PM
1,382 Posts
Quote from poohead123 :
Very common for nocos to fail quickly
My NOCO Genius 5 is over five years old and going strong. YMMV
1
Aug 16, 2025 09:31 PM
636 Posts
Joined Apr 2008
warrentAug 16, 2025 09:31 PM
636 Posts
Great deal!

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Pro
Aug 16, 2025 09:49 PM
785 Posts
Joined May 2012
luddite_cyborg
Pro
Aug 16, 2025 09:49 PM
785 Posts
Quote from gathermewool :
My NOCO Genius 5 is over five years old and going strong. YMMV
From what I gathered the older ones are good but there's quality issues with newer batches, but this is not hard fact, just based on reviews/opinions I've come across.
Aug 16, 2025 10:45 PM
727 Posts
Joined Mar 2006
SilverbackAug 16, 2025 10:45 PM
727 Posts
Quote from KLondike5-1212 :
Just like my women, I prefer dumb cars.
I prefer the older dumb cars as well but I am not sure this would be effected by either.
Aug 17, 2025 01:53 AM
286 Posts
Joined Sep 2012
AvantNateAug 17, 2025 01:53 AM
286 Posts
Quote from l0l :
https://www.amazon.com/dp/B097D397M6 seems a better deal. It has 10A@12V charging speed, 10X faster. It has 24V charging option, but without 6V. Other charging features are about the same @ $1 less. Am I missing something?
fwiw, that one doesn't have a lithium charging cycle if you need it.
Aug 17, 2025 02:03 AM
286 Posts
Joined Sep 2012
AvantNateAug 17, 2025 02:03 AM
286 Posts
Quote from luddite_cyborg :
Would love a recommendation for a good-value (not necessarily cheap) high-quality charger, ideally 10+ amps.I could do the research but hoping someone in-the-know can save me time, there's so many options. The NOCO's are too often promoted on here (with very mixed reviews) for me to want to buy this. I've had very good luck switching to obscure brands for many of my tools, sadly U.S. brands are hardly a guarantee of quality these days
I have the 10a version and it works well enough. My biggest complaint is the lack of led display with voltage. Also have had 3 of the 3.5a versions, one died after water exposure. I've gone through countless Schumachers.
2
Aug 17, 2025 02:43 PM
306 Posts
Joined Oct 2016
kurema8Aug 17, 2025 02:43 PM
306 Posts
This works far better than the junk sold by Harbor Freight. I was able to recharge multiple drained batteries due to non-use. The HF model failed.
1
Aug 17, 2025 02:57 PM
2,721 Posts
Joined Mar 2016
webdoctorsAug 17, 2025 02:57 PM
2,721 Posts
Purchase history shows I bought this for $19 in 2021 so its a good price just based off inflation since than.

Its useful for summers when out of town and need to keep car battery maintained. Easily worth the price to keep battery from dying.
Aug 17, 2025 03:10 PM
1,048 Posts
Joined Sep 2022
TealIdea227Aug 17, 2025 03:10 PM
1,048 Posts
Quote from luddite_cyborg :
Would love a recommendation for a good-value (not necessarily cheap) high-quality charger, ideally 10+ amps.I could do the research but hoping someone in-the-know can save me time, there's so many options. The NOCO's are too often promoted on here (with very mixed reviews) for me to want to buy this. I've had very good luck switching to obscure brands for many of my tools, sadly U.S. brands are hardly a guarantee of quality these days
Clore / Solar is the budget option that isn't hyped like NOCO.

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Aug 17, 2025 03:20 PM
507 Posts
Joined Nov 2007
cmac2728Aug 17, 2025 03:20 PM
507 Posts
Quote from 3JABO :
buyer beware: do NOT buy the one "used" unit thats available on Amazon right now. it was likely mine. I purchased it used-like new, when I received it, one of the prongs that goes into the wall was broken off. I returned it same day, and see that there's now a new Used - like new available for sale again. this is probably the same unit.

20k people bought this in the past month. What are the odds you are the only one that sent back an open box and now it is being resold?
1

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