NOCO X-Connect 12V Dual-Size Male Plug GC003 — Dual-Diameter 12V Adapter with LED & 20A Fuse

The NOCO GC003 X-Connect 12V Dual-Size Male Plug is a compact, dual-size auxiliary connector that lets compatible NOCO Genius chargers supply 12V power safely to vehicles and accessories.

This compact accessory converts a Genius charger’s 12-volt auxiliary port into a convenient, dual-diameter male plug that fits both standard and mini 12V sockets. Built with a watertight housing, an LED status indicator, and a 20A micro-blade fuse, the GC003 is designed to extend your charger’s versatility for powering accessories, maintaining battery-fed systems, and enabling quick connection without permanently wiring into the vehicle.

How does this plug work with my NOCO Genius charger?

When attached to a compatible NOCO Genius model, the GC003 supplies 12V output through its dual-size male tip so you can power devices that normally use a cigarette-lighter or accessory socket. The LED shows when the charger’s auxiliary port is active, helping you confirm power delivery at a glance.

• Plugs into the charger’s 12V auxiliary output to deliver power.
• Dual-size tip fits both full-size and mini 12V accessory sockets.
• LED indicator lights when the auxiliary 12V circuit is on.
• Includes a 20A micro-blade fuse for circuit protection.

Which NOCO chargers are compatible with the GC003?

The GC003 pairs with a wide range of NOCO Genius battery chargers and maintainers that offer a 12V auxiliary output. Check your charger’s specifications to confirm an auxiliary 12V port before purchasing — it’s not universal across every NOCO product line.

• Compatible: G750, G1100, G3500, G7200, G4 series.
• Compatible: GENIUS1, GENIUS2, GENIUS2X2, GENIUS2X4, GENIUS5, GENIUS10.
• Not compatible: NOCO Boost or Boost X UltraSafe Lithium Jump Starters.
• Works only with chargers that provide a 12V auxiliary output port.

Is the GC003 safe and durable for regular use?

Safety and ruggedness are central to this accessory. The GC003 has a watertight connector to resist moisture and grime, and it protects the circuit with an internal 20A micro-blade fuse. These features reduce the risk of short circuits and offer dependable performance in everyday conditions.

• Rugged, watertight housing extends outdoor usability.
• 20A micro-blade fuse prevents overload damage to the charger and accessories.
• LED status light helps avoid accidental disconnection or misuse.
• Compact design resists strain on the charger port during frequent use.

What practical uses does the GC003 enable?

By converting your charger’s auxiliary output into a standard 12V plug, the GC003 opens up many everyday applications. It’s useful for running portable devices, powering small 12V accessories, or providing on-demand power to vehicle systems during maintenance and diagnostics.

• Power dashcams, tire inflators, camping fridges, and portable lights.
• Maintain electronics while servicing a vehicle without rewiring circuits.
• Use with accessories that require a standard or mini 12V cigarette-style plug.
• Quick-connect option for temporary or mobile power needs.

Who is this for: The NOCO GC003 is intended for vehicle owners, mechanics, and outdoor enthusiasts who already own a compatible NOCO Genius charger and need an easy, reliable way to deliver 12V accessory power. It’s ideal when you want a nonpermanent, protected connection to run or test 12V devices from your charger without modifying vehicle wiring. If you use a NOCO Boost or Boost X jump starter, this accessory is not suitable.