How to Load Test a Motorcycle Battery


Testing a motorcycle battery with a voltmeter is a fairly easy task that will provide a basic picture of the battery's health. This static testing method can only tell you so much. A load test, which places the battery under a real riding scenario by having power drawn from the motorcycle's lights and ignition systems, will give you an accurate reading of its condition. The procedure is not much more complicated than a static test, but the results could reduce problems down the road.

Things You'll Need

  • Socket wrench
  • Multimeter
  • Automatic battery charger
  • Access the motorcycle's battery, either by unbolting the seat with a socket wrench or by pulling the side cover off of the motorcycle's frame.

  • Leave the ignition switch in the "Off" position and set your multimeter to read a DC (Direct Current) voltage scale, using the setting dial on the voltmeter's face.

  • Connect the voltmeter's red probe to the battery's positive terminal and black probe on the negative terminal. Take note of the battery's static voltage indicated on the voltmeter. Charge the battery with an automatic battery charger if the voltage is below 12.1 volts DC.

  • Keep the voltmeter's probes in place on the battery's terminals. Turn the ignition switch to the "On" position and take note of the battery's voltage. Replace the battery if the voltage is less than 10 volts DC while under a load.

  • Remove the voltmeter's probes and turn off the ignition. Reinstall the seat or side cover onto the motorcycle.

Related Searches


Promoted By Zergnet


You May Also Like

  • How to Test Your Car Alternator for Power

    When a car battery isn't providing enough power to start a car, people often assume that the battery is bad. Before buying...

  • How Long to Charge a Motorcycle Battery

    Charging a motorcycle battery is essential to getting winterized bikes back on the road or restoring vintage motorcycles. Motorcycle batteries are a...

  • How to Charge a Motorcycle Battery

    Motorcycle batteries are relatively expensive compared to car batteries. For this reason, many riders get a battery charger designed for motorcycles, since...

  • How to Jump Start a Motorcycle Battery From a Car

    Manufacturers do not recommend attempting to jump start a motorcycle battery from a car. The reason is that car batteries are much...

  • How to Test a Motorcycle Battery

    Unlike car batteries, motorcycle batteries require a bit more maintenance and care. When left uncharged, the lead-acid batteries used in motorcycles go...

  • How to Test a 12V 7AH Battery

    A motorcycle's battery amp-hour rating (AH) is measured by its ability to sustain a one-amp electrical current for one hour. If maintained...

  • How to Do a Battery Load Test

    Battery load testing involves measuring the amperes produced by a charged battery and is particularly relevant for vehicle batteries. The battery in...

  • Motorcycle Battery Maintenance

    A dead motorcycle battery will result in nothing happening when you turn the key. Learn tips on how to care for and...

  • How to Check a Motorcycle Battery

    Make sure a motorcycle's battery is fully functional. Learn tips on how to care for and charge a battery in this free...

Related Searches

Check It Out

How To Travel For Free With Reward Points

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!