It might irritate you if your bike’s battery runs down while you are on your way back home after a long, tiring day from the office.

Such a circumstance leaves motorcyclists to go for a fully functional electrical source to charge their bike’s battery on board.

There are several bike charging systems that you can easily install on any motorcycle and enjoy the ride while coming back home.

Such charging systems keep the riders updated about the battery condition which keeps the riders away from facing worst scenarios such as low battery.

Do you want to know the best charging system for your motorcycle? It is Voltmeter that will update you about the remaining battery and keep you safe.

Let’s learn more about this amazing system below. Read on.

What Is the Purpose of Motorcycle Voltmeter?

A voltmeter is a device installed on a vehicle that measures the voltage of the bike and tells that your bike’s battery is putting off.

It also helps monitor charging on your bike’s battery. Modern bikers rely solely on voltmeters to replenish the battery’s power supply.

What Voltage a Motorcycle Battery Should Measure?

The voltmeter should measure the bike’s battery at about 12 volts if it is running.

The batteries that are 75% to 100% charged should measure a voltage greater than 12 volts.

Once the motorcycle has started, the battery should measure volts at about 13.5 to 14.5 volts.

If your battery still shows less than 75% volts after charging, it might have defects and needs to be replaced.

What Is the Purpose of a Voltmeter?

It measures an electric potential difference between two points. A motorcycle voltmeter works differently. It measures voltage instead of reading the electrical flow.

Modern bikes use voltmeters while old motorcycles had an ammeter as a charging system.

How To Wire a Motorcycle Voltmeter?

It is very easy to install a voltmeter on any motorcycle. You just need to follow these steps:

Step 1: Test the voltmeter

  • Before installing a voltmeter, you need to test it.
  • Connect a negative wire to the negative terminal of the battery and the positive wire to the positive terminal.
  • The voltmeter should measure 12.5 volts.
  • Then remove the voltmeter wires from the battery.

Step 2: Select the location

After testing, you need to find the location of the voltmeter on your bike. Wisely choose the location to prevent any damage to expensive body works.

However, fully faired motorcycles present more choices than older motorcycles.

Step 3: Join positive wire to the switched circuit

Similar to the speedometer lighting wire, take the positive wire from the voltmeter and connect it to the switched circuit.

By doing so, the voltmeter will not draw power when the motorcycle is not running.

Step 4: Ground the negative wire of voltmeter

Connect the negative wire to the bolt or screw on a frame to ground the meter and run the negative wire back to the battery.

Step 5: Turn “ON” the ignition switch

Measure the voltmeter reading by turning it on. It should show 12.5 volts for a properly charged battery.

Step 6: Operation

Start the motorcycle and measure the voltmeter reading. The meter should reflect a voltage of 13.8 to 14.5 volts if the charging system is running properly.


What does voltmeter do in a motorcycle?

A voltmeter measures the voltage of your bike’s battery and it also monitors the charge plus volts on your battery.

What should my motorcycle voltage be?

A healthy battery should show a voltage of 13.4 to 14.5 once the bike has started. It should measure at least 12 volts when a motorcycle is running.

What is a motorcycle voltmeter?

A motorcycle voltmeter measures voltages instead of electric flow to monitor the remaining charge on the battery.

How does a voltmeter work?

It works by measuring a potential difference between two points in an electric circuit. We must connect a voltmeter in parallel.


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