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phoinix | Staff 30.2K Views
Nov 27, 2025 3:29 PM

NOCO GENIUS5: 5-Amp 6V / 12V Automatic Smart Battery Charger & Maintainer

$56

$90

37% off
+ Free Shippingat Amazon
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Deal Details
Amazon has NOCO GENIUS5: 5-Amp 6V / 12V Automatic Smart Battery Charger & Maintainer for $55.96. Shipping is free.

Thanks to Deal Hunter phoinix for finding this deal.

Product Description:
  • Designed for 6-volt and 12-volt lead-acid (AGM, Gel, SLA, VRLA) and lithium-ion (LiFePO4) batteries, including flooded, maintenance-free, deep-cycle, marine and powersport batteries.
  • An integrated thermal sensor dynamically adjusts the charge based on ambient temperature, preventing overcharging in hot weather and undercharging in cold, ensuring optimal battery performance.
  • Charge batteries from as low as 1 volt, or use Force Mode to manually charge completely dead batteries down to zero volts. Perfect for recovering deeply discharged or neglected batteries.
  • Keep your battery fully charged without worrying about overcharging. Our smart charger constantly monitors the battery, allowing you to leave it connected safely - indefinitely - for worry-free maintenance.
  • Precision pulse charging automatically detects and reverses battery sulfation and acid stratification, restoring your battery's health for improved performance and extended lifespan.
  • 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.
  • Includes a 5A charger, 72-inch AC cable, 80-inch DC cable with battery clamps, and integrated eyelet terminals, mounting bracket, screws, and a 3-year warranty. Proudly designed in the USA.

Editor's Notes

Written by Corwin | Staff
  • About this Deal:
    • While supplies / offer lasts.
    • Please see the original post for additional details and give the WIKI and forum comments a read for deal ideas and helpful discussion.
  • About this Store:

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has NOCO GENIUS5: 5-Amp 6V / 12V Automatic Smart Battery Charger & Maintainer for $55.96. Shipping is free.

Thanks to Deal Hunter phoinix for finding this deal.

Product Description:
  • Designed for 6-volt and 12-volt lead-acid (AGM, Gel, SLA, VRLA) and lithium-ion (LiFePO4) batteries, including flooded, maintenance-free, deep-cycle, marine and powersport batteries.
  • An integrated thermal sensor dynamically adjusts the charge based on ambient temperature, preventing overcharging in hot weather and undercharging in cold, ensuring optimal battery performance.
  • Charge batteries from as low as 1 volt, or use Force Mode to manually charge completely dead batteries down to zero volts. Perfect for recovering deeply discharged or neglected batteries.
  • Keep your battery fully charged without worrying about overcharging. Our smart charger constantly monitors the battery, allowing you to leave it connected safely - indefinitely - for worry-free maintenance.
  • Precision pulse charging automatically detects and reverses battery sulfation and acid stratification, restoring your battery's health for improved performance and extended lifespan.
  • 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.
  • Includes a 5A charger, 72-inch AC cable, 80-inch DC cable with battery clamps, and integrated eyelet terminals, mounting bracket, screws, and a 3-year warranty. Proudly designed in the USA.

Editor's Notes

Written by Corwin | Staff
  • About this Deal:
    • While supplies / offer lasts.
    • Please see the original post for additional details and give the WIKI and forum comments a read for deal ideas and helpful discussion.
  • About this Store:

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+31
Good Deal
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Top Comments

Miraxchange
963Comments
219Reputation
the 10A is $79.96 right now too https://www.amazon.com/dp/B07W3QT226?th=1
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19 Comments

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Nov 27, 2025 7:35 PM
963 Comments
Joined Jan 2009
MiraxchangeNov 27, 2025 7:35 PM
963 Comments
the 10A is $79.96 right now too https://www.amazon.com/dp/B07W3QT226?th=1
Nov 27, 2025 9:12 PM
23 Comments
Joined Oct 2012
loljohoNov 27, 2025 9:12 PM
23 Comments
FYI these are smart chargers (maintaining, trickle charging, etc) and not jump starters.
1
Nov 27, 2025 9:35 PM
521 Comments
Joined Dec 2014
LordVader3425Nov 27, 2025 9:35 PM
521 Comments
Can you keep the battery charged while it is in the car or do you have to disconnect it while charging?
1
Nov 27, 2025 10:00 PM
128 Comments
Joined Nov 2020
BeigeHerring9745Nov 27, 2025 10:00 PM
128 Comments
Quote from LordVader3425 View quoted comment :
Can you keep the battery charged while it is in the car or do you have to disconnect it while charging?
Works fine to charge/maintain in the vehicle. I've got a couple that are rarely driven ands have been using noco charger to keep them topped up for years with no issues
Nov 27, 2025 10:59 PM
15.4K Comments
Joined Dec 2015
Spaceman6969Nov 27, 2025 10:59 PM
15.4K Comments
Quote from BeigeHerring9745 View quoted comment :
Works fine to charge/maintain in the vehicle. I've got a couple that are rarely driven ands have been using noco charger to keep them topped up for years with no issues
Would this do the job to get voltage back from 11.9 to 13.2? 3.7L SUV here. It alternator works great. Still runs after starting up as showing 14.3 voltage. just don't want the voltage to drops to dead state due to long term parking.
Pro
Nov 27, 2025 11:42 PM
467 Comments
Joined Jun 2021
Robbery
Pro
Nov 27, 2025 11:42 PM
467 Comments
This is the best one they've got. It is perfect. Confirmed working for: 2017 Honda Accord, 2018 Infiniti Q50, 2015 BMW 535i, 2000 Toyota Avalon
Nov 27, 2025 11:56 PM
423 Comments
Joined Sep 2011
Fuzzy_WuzzyNov 27, 2025 11:56 PM
423 Comments
Quote from Spaceman6969 View quoted comment :
Would this do the job to get voltage back from 11.9 to 13.2? 3.7L SUV here. It alternator works great. Still runs after starting up as showing 14.3 voltage. just don't want the voltage to drops to dead state due to long term parking.
13.2 should not really be seen with the car off, more like 12.8 with a strong battery. This should help, keep it in a better state between charges

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Nov 28, 2025 12:45 AM
748 Comments
Joined Mar 2019
trent0210Nov 28, 2025 12:45 AM
748 Comments
Quote from Spaceman6969 View quoted comment :
Would this do the job to get voltage back from 11.9 to 13.2? 3.7L SUV here. It alternator works great. Still runs after starting up as showing 14.3 voltage. just don't want the voltage to drops to dead state due to long term parking.
Even the Noco 1 helps but slower.
1
Nov 28, 2025 2:50 AM
184 Comments
Joined Nov 2016
TomekGNov 28, 2025 2:50 AM
184 Comments
I also noticed pulsetech mainteners are also on sale similar price. Wonder if they are better or practically the same. Pulsetech was used on military products
Nov 28, 2025 5:15 AM
78 Comments
Joined Oct 2006
opelloNov 28, 2025 5:15 AM
78 Comments
Quote from trent0210 View quoted comment :
Even the Noco 1 helps but slower.
Just to reiterate, the Genius1 is cheaper (currently $24) and works great for maintaining a seldom used vehicle battery.

https://www.amazon.com/dp/B07W46BX31
Nov 28, 2025 5:47 AM
15.4K Comments
Joined Dec 2015
Spaceman6969Nov 28, 2025 5:47 AM
15.4K Comments
Quote from Fuzzy_Wuzzy View quoted comment :
13.2 should not really be seen with the car off, more like 12.8 with a strong battery. This should help, keep it in a better state between charges
Make sense. I was going to getThis one however I learned that this needs to plug into the wall to work so no go for me.Honesty I was hoping for something like this but without plugging to the wall in order to charge the car battery. I use street parking as a matter of fact.
Nov 28, 2025 1:27 PM
157 Comments
Joined Dec 2006
fmoNov 28, 2025 1:27 PM
157 Comments
Remember to test it out when you get it because there are some bad reviews
Nov 28, 2025 3:22 PM
2.2K Comments
Joined Feb 2008
Kuma1Nov 28, 2025 3:22 PM
2.2K Comments
Why is this Noco better than the Schumacher with a 15amp rapid charge for $34?

https://www.amazon.com/Schumacher...337&sr=1-5
Nov 28, 2025 3:31 PM
985 Comments
Joined Sep 2007
TideFanGeorgeNov 28, 2025 3:31 PM
985 Comments
Was looking at the Genius2 for a car that hardly gets driven. Any reason to get the 5 over the 2?

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Nov 28, 2025 5:13 PM
354 Comments
Joined Sep 2004
tanginatorNov 28, 2025 5:13 PM
354 Comments
Quote from TideFanGeorge View quoted comment :
Was looking at the Genius2 for a car that hardly gets driven. Any reason to get the 5 over the 2?
The higher models charge faster (2A, 3A, 5A, etc.). Even the the Genius1 charging at 1A should top up a slightly drained (20%) 50Ah battery in 10 hours. So half that time with the Genius2.

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