How do I eliminate a motorcycle battery?

Written by chris gilliland Google
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How do I eliminate a motorcycle battery?
A motorcycle battery elimination kit relies on a capacitor to store electrical energy. (condensadores image by Vanesa Boullosa Lopez from

Eliminating the battery from a motorcycle's charging system is often done to reduce a race bike's total weight or to clean up the appearance of a custom motorcycle. Doing so requires replacement with a battery elimination kit, which consists of a high-powered capacitor that stores the electrical current provided by the motorcycle's charging system for use by the ignition and lighting systems. However, some generators require an electrical charge to produce the magnetic field that allows it to generator a current. These generators are not compatible with a battery elimination kit and must use a battery.

Skill level:

Things you need

  • Phillips screwdriver
  • Battery elimination Kit
  • Wrench set
  • Socket wrench and sockets

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  1. 1

    Access your motorcycle's battery, either by removing the seat or a side cover.

  2. 2

    Disconnect the battery. Use a Phillips screwdriver to remove the bolts from the battery's terminals, starting with the negative terminal and then the positive. Pull away the battery leads. Pull the battery out of the motorcycle.

  3. 3

    Connect the battery elimination kit's capacitor to the motorcycle's battery leads. Use a wrench to remove the nuts from the capacitor's terminals. Slip the motorcycle's negative battery lead to the capacitor's negative terminal. Screw the terminal's nut into place and tighten with a wrench. Repeat to install the positive battery lead.

  4. 4

    Secure the capacitor to the motorcycle's frame using the kit's metal strap. Select a suitable bolt within the battery compartment and remove it with a socket wrench. Insert the bolt into the capacitor strap's mounting holes. Reinstall the bolt and the capacitor to the frame with a socket wrench.

  5. 5

    Turn on the ignition and kickstart the motorcycle. Check that all connections are completely tightened if the motorcycle does not start.

Tips and warnings

  • Refer to your motorcycle's owner's manual for details regarding the type of charging system used by your motorcycle. If your motorcycle operates on a field-coil generator, do not install a battery elimination kit.
  • Use caution when installing or removing the kit's capacitor, which can store an extremely dangerous amount of electrical power. Mishandling the capacitor can cause it to discharge, leading to the risk of serious injury and death.

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