Noco Genius 3.0 Battery Charger - 5 AMP

The Noco Genius 3.0 is a 5-amp smart battery charger engineered for V-twin motorcycles, handling both lead-acid and lithium-ion batteries with automatic detection and maintenance. It revives deeply discharged batteries down to 1 volt and includes a desulfation mode to extend battery life on worn units.

Features

• Charges and maintains lead-acid and lithium-ion batteries
• Detects dead batteries as low as 1 volt; force mode charges from 0 volts
• Built-in desulfation mode recovers worn-out batteries
• Reverse-polarity and incompatible-battery detection
• Detachable clamps for permanent cable installation

Specifications

• Brand: Noco Genius
• Manufacturer Part #: GENIUS5
• UPC: 046221190045
• Charging Amperage: 5 amps
• Dimensions: 3.43 in L × 4.64 in W × 7.95 in H
• Weight: 1.59 lbs
• Country of Origin: China (Mainland)

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Will this charger work on my lithium-ion battery?

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

Can it charge a completely dead battery?

Yes. The force mode allows charging of batteries down to 0 volts; the standard mode detects batteries as low as 1 volt.

What does the desulfation mode do?

It reverses sulfate buildup on battery plates to recover capacity in worn-out batteries, extending their usable life.

Can I leave this charger connected permanently?

Yes — the smart maintenance mode prevents overcharging, making it safe for long-term trickle charging between rides.

What happens if I connect it backward?

Built-in reverse-polarity detection alerts you immediately, preventing damage to the charger or battery.