CTEK Cig-Plug permanent 12V inlet — fits 12mm & 21mm sockets, Comfort Connect compatible

Install the CTEK Cig-Plug once and leave it connected to simplify charging for cars, motorcycles and other vehicles where the battery is difficult to access. The accessory works with many CTEK models that use the Comfort Connect system, letting you dock a charger quickly via the vehicle’s cigarette/12V socket without repeatedly removing panels or crawling under the bonnet. The plug fits both common socket diameters and includes strain-relief design for safer, longer-lasting use.

How does this make charging easier for vehicles with hard-to-reach batteries?

By providing a permanent 12V inlet inside the vehicle, the CTEK Cig-Plug eliminates the need to open the bonnet or detach trim to reach the battery terminals. Plug your CTEK charger into the cigarette socket instead of accessing the battery directly.

• Mounts permanently for quick, repeatable access
• Compatible with CTEK Comfort Connect chargers for one-click attachment
• Works with both 12 mm and 21 mm accessory sockets
• Reduces wear from repeated cable routing and terminal handling

Which CTEK chargers and vehicle sockets are compatible with the Cig-Plug?

The Cig-Plug is designed to pair with CTEK chargers that use the Comfort Connect system and models listed by CTEK, including entry-level and advanced units. It requires the vehicle’s accessory socket to remain powered when the ignition is off to allow charging while parked.

• Compatible chargers include Comfort Connect, UC 800, US 800, MULTI US 3300, MULTI US 4.3, MXS 5.0 and others
• Fits standard 12 mm and larger 21 mm cigarette-style sockets
• Requires a live accessory socket with ignition off for charging
• Pairs with both cars and motorcycles with the correct socket type

Is the Cig-Plug durable and safe for long-term installation?

The connector is engineered for everyday use with flexible, wear-resistant cabling and a molded strain-relief to reduce stress where the cable meets the plug. It is designed and tested in Sweden to meet CTEK’s durability expectations and comes with a two-year warranty for peace of mind.

• Molded maze-like strain relief increases safety and cable life
• Flexible, hardwearing cable resists repeated routing and movement
• Designed and tested in Sweden to CTEK standards
• Includes a two-year manufacturer warranty

How do I install and use the Cig-Plug correctly?

Installation is straightforward: route the cable from the battery to a convenient accessory socket location and secure the socket permanently. After that, connect your CTEK charger using the Comfort Connect interface — no battery terminal access required for routine charging.

• Route and secure cable from battery to the chosen socket location
• Confirm the vehicle socket remains live with ignition off
• Attach CTEK charger using the CONNECT system for a secure link
• Ideal for scheduled maintenance charging and seasonal storage

Who is this for: The CTEK Connect CIG Plug is intended for vehicle owners, fleet managers and motorcycle riders who want a reliable, low-hassle way to charge batteries that are awkward to access. It’s especially useful if you plan to keep a charger connected regularly, want to avoid repeated battery terminal handling, or require a neat, permanent inlet for routine charging and maintenance.