Minn Kota battery charger extension cable 15 ft One Size — 12 AWG, 30A fused leads

The Minn Kota MK-EC-15 is a 15-foot battery charger extension cable that adds reach and safe connections between your onboard charger and remote battery compartments.

When charger mounts, battery boxes, or accessory locations don’t line up, the MK-EC-15 gives you the extra length and secure wiring you need to keep batteries topped without splicing. Built with 12 AWG conductors, WAGO® Wall-Nut™ quick connectors (UL listed), and fused 30-amp positive and negative leads, this extension is designed for professional-grade charging runs on boats where distance and reliability matter.

How does the MK-EC-15 extend my charger’s reach?

It adds 15 feet of cable between your existing charger wiring and the battery compartment, eliminating the need to relocate the charger or run improvised extensions. The cable is sized for high-current charging and maintains consistent power delivery over the added distance.

• 15-foot length to bridge distant bow, center, or transom batteries
• 12 AWG wire reduces voltage drop during charging
• Pre-terminated ends speed installation and reduce error

What makes the connection secure and easy to install?

The MK-EC-15 uses WAGO Wall-Nut quick connectors so you can make tool-free, reliable junctions without cutting or splicing factory cables. Connectors are UL listed for safety and designed to hold conductors firmly under vibration and marine conditions.

• WAGO Wall-Nut quick connectors allow fast, repeatable terminations
• No soldering or complex crimping required—suitable for DIY or pro installs
• Designed to retain contact under boat vibration and movement

What safety features are included with this extension cable?

Both the positive and negative leads are fused at 30 amps to protect against overcurrent events during charging. The fused leads, combined with properly sized 12 AWG conductors, reduce risk and help protect chargers, batteries, and wiring runs.

• 30-amp fused positive and negative leads for overcurrent protection
• 12 AWG conductors for reliable current handling and lower heat build-up
• UL-listed components where indicated to meet recognized safety standards

Will this work with my existing Minn Kota charger or other brands?

The MK-EC-15 is intended to extend the reach of most onboard battery chargers and is compatible with typical charger wiring when connectors match or adapters are used. Confirm terminal types and polarity before connecting to avoid connection mistakes.

• Compatible with chargers that use matching quick-connect or terminal configurations
• Polarity-marked leads reduce miswiring risk—verify before powering up
• Can be used with non-Minn Kota chargers if connectors or adapters are compatible

Who this is for: Boaters, marine technicians, and anglers who need a dependable, factory-grade extension to reach batteries located in the bow, midship, or transom. It’s ideal for installations where moving the charger isn’t practical and where secure, fused connections are required for safe charging runs. If you want a ready-made, marine-focused extension that avoids splices and uses UL-listed quick connectors, the Minn Kota MK-EC-15 is built for that purpose.