Minn-Kota MK-EC-15 Battery Charger Output Extension Cable One Size. The cable features WAGO Wall-Nut quick connectors (UL listed) and fused (30 amp) positive and negative leads. Features of Minn Kota MK-EC-15 Power Extension Cord Battery Charger: Features WAGO UL listed quick connectors Fused (30 amp) leads 15-feet long Extenstion cables are ideal when standard charger cables will not reach bow Available in 6 feet or 15 feet length Package Contents: Minn Kota MK-EC-15 Power Extension Cord 15 ft Battery Charger 1820089 Minn-Kota 1820089: MK-EC-15 Battery Charger Output Extension Cable One Size