Noco Genius 3.0 Battery Charger - 2 AMP

Noco Genius 3.0 is a 2-amp smart charger engineered for V-twin motorcycle batteries, handling both lead-acid and lithium-ion chemistries with automatic detection and recovery modes. Built-in reverse-polarity protection and a force mode for deeply discharged batteries make it reliable for Harley-Davidson and Indian riders.

Features

• Charges and maintains lead-acid and lithium-ion batteries
• Detects and charges dead batteries down to 1 volt; force mode goes to 0 volts
• Battery desulfation mode recovers worn-out batteries
• Reverse-polarity and incompatible-battery detection
• Detachable clamps for permanent cable installation
• Optional vehicle direct-mount bracket included

Specifications

• Brand: Noco Genius
• Manufacturer Part #: GENIUS2
• UPC: 046221190038
• Amp Output: 2 amp
• Dimensions: 4.25 in L × 3.43 in W × 6.97 in H
• Weight: 1.23 lbs
• Country of Origin: China (Mainland)

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models. Compatible with both lead-acid and lithium-ion battery chemistries.

Frequently Asked Questions

Will this charge my lithium-ion motorcycle battery?

Yes — the Genius 3.0 automatically detects and safely charges both lead-acid and lithium-ion batteries without manual selection.

What if my battery is completely dead?

The charger detects batteries as low as 1 volt. If it won't start, engage force mode to charge from 0 volts and recover the battery.

Can I mount this permanently on my bike?

Yes — the Genius 2D includes a mounting bracket and strap for direct vehicle installation. Detachable clamps allow hard-wired cable runs.

What does the desulfation mode do?

Desulfation pulses the charger to break down sulfate buildup on worn lead-acid batteries, often recovering capacity that seemed lost.

Does it prevent overcharging?

Yes — smart charging automatically switches to float/maintenance mode once the battery is fully charged, preventing damage.