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Noco Genius Charger/Maintainer - NOCO - 0-46221-19003-8 (GENIUS2)

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Noco Genius Charger/Maintainer - NOCO - 0-46221-19003-8 (GENIUS2)


The all-new GENIUS2, one of our powerful, outstanding performing, energy-saving, and compact chargers yet. This product is a 6-volt and 12-volt battery charger, battery maintainer, and battery regulator rated at 2-amps for lead-acid automotive, marine, and deep-cycle batteries, such as flooded, gel, AGM, and easy maintaining charger, plus lithium-ion batteries.

Key Features:

  • A versatile layout that allows you to charge in more ways.
  • Compact but effective battery charger. A blend of electrical engineering and business layout % an effective battery charger right into a tiny footprint. The Noco Genius Charger/Maintainer has high-frequency switch-mode generation to successfully convert A/C strength into secure D/C energy for battery charging. In addition, the built-in microcomputer accurately controls the charging process, reducing power loss and creating a very compact form factor.
  • The all-new start-voltage sensor permits the GENIUS to locate and feed lifeless batteries as little as 1-volt. For extraordinarily useless batteries that decrease than 1-volt, manually flip on pressure mode to assess and rate batteries all the manner right down to 0 volts.
  • The newly incorporated thermal sensor robotically displays units and adjusts the charging cycle primarily based totally on fluctuations of ambient temperature, restricting the danger of under-charging or over-charging, supplying an extra correct and completely charged battery. Avoids under-charging in bloodless climate down to -four F and avoids over-charging in warm climate as much as 104 F.
  • The Noco Genius Charger/Maintainer mechanically detects sulfation/acid stratification. Once the device detects it, the GENIUS2 will mechanically restore and opposite the harm performed to the battery, extending the usable lifestyles and growing the performance.
  • A charger from beginning to completion that’s automatic. No unique modes, no technical information required. Genius will appropriately price any battery. Detect broken batteries and intuitively restore them. And actively reveal for a long-time period battery upkeep and make bigger battery life. This device lets in for non-stop operation without personal intervention and 0 danger of overcharging your battery.
  • The Genius clamp has a needle nose shape for small terminal applications and a detachable inbuilt eyelet for attaching accessories to the battery permanently, which makes it perfect for the fabrication of battery terminals of all shapes and sizes. It also improves step forward tension range, tension force, and conductivity.

What’s In The Box

  • GENIUS2 Battery Charger w/ Interchangeable Connector
  • Clamps w/ Integrated Eyelets (M6)
  • Mounting Bracket w/ Strap
  • (2) Self-Tapping Screws
  • User Guide & Warranty Information


  • Product Size
  • Height: 3.7 Inches (94 mm)
  • Width: 2.4 Inches (61 mm)
  • Depth: 1.7 Inches (43 mm)
  • Weight: 1.1 Pounds (0.5 kg)

Operating Requirements:

  • Line Voltage: 120V to 240V AC
  • Frequency: 50Hz to 60Hz
  • Operating Temp: -4° to 104° F
  • Storage Temp: -22° to 140° F
  • Relative Humidity: 0 to 95% Non-Condensing


  • Current: 2 Amps DC
  • Voltages: 6V, 12V
  • Chemistry: Lead-Acid and Lithium
  • Charging Types: Wet, Gel, MF, CA, EFB, AGM, Lithium
  • Capacity Range: Up to 40 Amp-Hours
  • Maintenance: All Battery Sizes

Cord Management:

  • DC Cable and Clamp Length: 77 Inches (195 cm)
  • DC Cable Size: 18 AWG
  • DC Fuse: 4 AMP MINI ® Blade Fuse
  • AC Cable Length: 71.7 Inches (182 cm)
  • AC Cable Size: 18 AWG
  • Oil, gas, grease, water, chemical, UV, abrasion-resistant

Similar to our G1100, just better. It’s 31% smaller and delivers over 82% more power. And it’s simpler and easier to use than ever before. Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use. 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.

This product replaces:



We can ship to virtually any address in the US. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.)

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.

Need help? We're available at+1 (800) 664-8116 - Email us
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