Re: Koban Battery Ignition Commutator Home › Forum › Ask A Member › Koban Battery Ignition Commutator › Re: Koban Battery Ignition Commutator garry-in-michiganLifetime MemberReplies: 3583Topics: 31 August 12, 2017 at 2:46 pm #62921 You can make your own with a 6 volt double pole double throw relay and a Light Four/Zephyr coil. It may need a small capacitor to protect the contacts. . . 😉