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NOCO GENIUS5, 5-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, and Battery Desulfator with Temperature Compensation

4.7 out of 5 stars 6,842 ratings

List Price: $89.95 Details
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Brand NOCO
Battery Cell Composition Lithium Ion
Item Dimensions LxWxH 4.61 x 3.43 x 7.95 inches
Item Weight 1.59 Pounds

About this item

    This fits your .
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  • Meet the GENIUS5 - Similar to our G3500, just better. It's 34% smaller and delivers 65% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
  • Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.
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Frequently bought together

  • NOCO GENIUS5, 5-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, and Batte
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  • NOCO GC002 X-Connect M6 Eyelet Terminal Accessory For NOCO Genius Smart Battery Chargers
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  • NOCO GC009 X-Connect SAE Adapter Accessory For NOCO Genius Smart Battery Chargers
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Customer Rating 4.7 out of 5 stars (6842) 4.8 out of 5 stars (607) 4.8 out of 5 stars (190) 4.9 out of 5 stars (187) 4.7 out of 5 stars (2300) 4.4 out of 5 stars (3129)
Price $69.95 $129.95 $70.84 $101.15 $39.95 $35.99
Shipping FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details FREE Shipping. Details
Sold By Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com BMK BLUEMICKEY
Color Multi Multi 12V@5A
Item Dimensions 4.61 x 3.43 x 7.95 inches 9.15 x 7.2 x 5.39 inches 7.22 x 5.16 x 5.16 inches 7.62 x 7.2 x 6.1 inches 5 x 2.3 x 1.5 inches

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Product description

Introducing the all-new GENIUS5, making it one of our most powerful, highest-performing, energy-efficient, and compact charger yet. The GENIUS5 is a 6-volt and 12-volt battery charger, battery maintainer, trickle charger, and battery desulfator, rated at 5-amp for all types of lead-acid and lithium-ion batteries, including flooded, gel, and AGM, as well as, marine and deep-cycle batteries. Other commonly used search terms: battery charger, car battery charger, battery charger automotive, battery maintainer, 12v battery charger, 12 volt battery charger, 6v battery charger, 6 volt battery charger, auto battery charger, agm battery charger, deep cycle battery charger, bike battery charger, motorcycle battery charger, car battery maintainer, automotive battery charger, motorcycle charger for battery, battery charger for cars, automatic battery charger, trickel battery charger automotive, trickle charger, trickle charger for car, trickle charger for car battery, trickle charger for 12 volt batteries, trickle charger for motorcycle battery, trickle charger 12v, trickle charger 6v, trickle charger for motorcycle, trickle charger for automobiles, trickle charger for lawn mower, battery maintainer 12 volt, battery maintainer 6 volt, battery maintainer automotive, battery maintainer charger, car battery chargers automotive, car battery charger portable, car battery charger maintainer, car battery charger 12v, car battery charger 12 volt, car battery charger 6v, car battery charger 6 volt, car battery charger automotive 12v, agm battery charger maintainer, agm battery charger automotive, agm battery charger 12v, deep cycle battery charger maintainer, deep cycle battery charger 12v, motorcycle battery maintainer, motorcycle battery trickle charger, motorcycle battery charger and maintainer, car battery trickle charger and maintainer, car battery charger maintainer, trickle charger for m arine battery, trickle charger for atv battery, atv trickle charger, motorcycle trickle charger, trickle charger for truck, boat trickle charger, boat battery charger, marine battery charger, boat battery maintainer, marine battery maintainer, marine battery charger maintainer, 12v trickle battery charger, 12v trickle charger, 12 volt trickle charger, 6v trickle charger, 6 volt trickle charger, 12v battery charger automotive, lithium battery charger, lithium battery charger 12v, lithium battery charger motorcycle, smart battery charger, smart battery charger 12v, smart battery charger automotive, smart battery charger/maintainer, smart battery charger/maintainer 12v fully automatic, car battery charger/maintainer, battery charger/maintainer, rv battery charger, rv battery charger and maintainer, rv battery charger deep cycle, winter battery charger, automatic battery charger, smart charger 12v, smart charger 12 volt, charger for car battery, cars battery charger, battery trickle charger, smart battery charger car, battery desulfator, car battery maintainer charger, atv battery maintainer, 12v agm battery charger, battery charger automotive trickle, rv battery charger maintainer, battery trickle charger maintainer, scooter battery charger, automatic battery maintainer, battery trickle charger 6v, cars battery charger, battery tester charger automotive, auto battery charger 12v, automotive charger, automatic 12v battery charger, smart charger trickle, car battery trickle charger and maintainer, car battery trickle charger and maintainer, battery trickle charger battery trickle charger, auto battery trickle charger maintainer, battery+trickle+charger, boat battery trickle charger and maintainer, motorcycle battery trickle charger and maintainer, marine battery trickle charger and maintainer, marine battery trickle charger and maintainer, automatic car battery trickle charger, portable automotive battery trickle charger, 6v/12v battery trickle charger, 12v deep cycle battery trickle charger, battery trickle charger with clamps, motorhome battery trickle charger automotive, battery maintainer for cars, battery maintainer for motorcycles, battery maintainer for boats, battery maintainer waterproof, trickle charger waterproof, best battery mainatiner, best trickle charger, best car battery charger, auto battery mainatiner, 12v battery mainatiner, battery mainatiner motorcycle 12v, 6v battery maintainer, lithium battery maintainer, generator battery maintainer, porsche battery maintainer, 12volt battery maintainer, desulfating battery charger/maintainer, fully automatic battery maintainer, batteries maintainer, diesel battery maintainer, battery maintainer float charger, 6v/12v battery charger/maintainer, deep cycle battery charger and maintainer, battery desulfator charger, battery desulfator 12v, agm battery desulfator, battery desulfator 6v, battery reconditioning charger, battery rejuvenator desulfator, battery reconditioning charger, 12v battery reconditioner, smart charger trickle, motorcycle smart battery charger, agm smart charger, marine battery smart charger, smart charger atv, smart charger motorcycle, smart charger, smart battery chargers, marine smart charger, auto battery smart charger, automotive battery chargers, portable automotive battery charger, automotive battery chargers.


From the manufacturer

GENIUS5, 6V, 12V, charger, maintainer, desulfator, lead-acid batteries, 120 amp-hours, repair mode

GENIUS5, 6V, 12V, charger, maintainer, desulfator, lead-acid batteries, 120 amp-hours, repair mode

GENIUS5

GENIUS1, 6V, 12V, charger, maintainer, battery desulfator, lead-acid batteries, 30 amp-hours

GENIUS1

GENIUS2, 6V, 12V, charger, maintainer, battery desulfator, lead-acid batteries, 40 amp-hours

GENIUS2

GENIUS10, 6V, 12V, charger, maintainer, desulfator, lead-acid batteries, 230 amp-hours, repair mode

GENIUS10

Charging Current
5 Amps 1 Amp 2 Amps 10 Amps
Battery Capacity
120Ah 30Ah 40Ah 230Ah
Output Power
75W 15W 30W 150W
12V Repair Mode
12V Supply Mode
6V AGM Mode

Customer Questions & Answers

Customer reviews

4.7 out of 5 stars
4.7 out of 5
6,842 global ratings
How are ratings calculated?

Top reviews from the United States

Reviewed in the United States on January 24, 2020
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455 people found this helpful
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Reviewed in the United States on September 6, 2020
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1.0 out of 5 stars Not recommended as a trickle charger
By Michael on September 6, 2020
I purchased this because one of the customer questions on Amazon was answered by the manufacturer as follows:

Question: Can I use this to maintain the charge in my car and leave it unattended for months during winter storage?
Answer:Yes, it can safely maintain a battery all winter long.
By NOCO Support MANUFACTURER on December 9, 2019

However, as you will see on the cover page of the user manual (image attached) it says not to use it unattended. (I added the red highlight in the attached picture.)

I'm sure that it will probably work, but the point is that this is not a must-have purchase. I bought it for peace of mind and convenience on a car that would be stored through the winter. However, that peace of mind is out the window if the manufacturer feels they need to make a disclaimer upfront.

Bottom line, it may work as charger, but it is not (according to the manufacturer's manual) recommended to maintain batteries unattended. I suppose the battery maintainer portion is technically true if you are willing to move into your garage and sleep with your car during the winter months [grin].
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219 people found this helpful
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Reviewed in the United States on February 9, 2020
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90 people found this helpful
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Reviewed in the United States on March 28, 2020
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71 people found this helpful
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Reviewed in the United States on January 25, 2020
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76 people found this helpful
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Reviewed in the United States on February 26, 2020
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5.0 out of 5 stars Recovered an old battery
By LAWSONRANGER on February 26, 2020
Tried it out for the 1at time on an old motorcycle battery that had been sitting for years in the basement. Tested the voltage on the battery before and afterwards. Brought the battery back to life.
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64 people found this helpful
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Reviewed in the United States on January 6, 2020
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64 people found this helpful
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Reviewed in the United States on January 11, 2020
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57 people found this helpful
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Top reviews from other countries

Gary J
5.0 out of 5 stars Updated version of the Genius G3500. Seems to work great so far
Reviewed in Canada on May 29, 2020
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40 people found this helpful
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Jorge Silva
4.0 out of 5 stars Excelente !! pero una función queda inconclusa
Reviewed in Mexico on September 18, 2020
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16 people found this helpful
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David Bailey
5.0 out of 5 stars Saved a very expensive and very old Jaguar battery
Reviewed in Canada on June 2, 2020
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27 people found this helpful
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Snowby
5.0 out of 5 stars Definitely Worth the money
Reviewed in Canada on September 13, 2020
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6 people found this helpful
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Joshua cormier
5.0 out of 5 stars Very very easy to use, foolproof
Reviewed in Canada on April 29, 2020
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23 people found this helpful
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