How to Test a Lithium Motorcycle Battery

Testing your lithium motorcycle battery is a critical care and maintenance procedure. Performing these tests helps check whether a battery conforms to the international battery performance standards.

To test, disassemble the lithium battery from the motorcycle and use a voltmeter to record the voltage readings. Use the given voltage specifications from the manufacturer and compare them with your readings. Irregularities in the readings will tell you the health of your battery.

Scroll down to get more information on how to test lithium motorcycle battery. We shall dwell on various methods of testing your lithium battery and set up a guideline.

What Are The Most Effective Battery Testing Methods?

Not all battery testing methods are worth a trial. Some ways may cause more harm to the battery than good. Discussed below are among the most effective battery testing methods.

lithium motorcycle battery

Capacity Tests

They are commonly known as the discharge test. The test involves a current outage in a controlled process. The current in the battery is drawn out of the lithium systems while the procedure is monitored in a graphical representation.

Since the test is aimed at determining the battery’s capacity, the time taken to discharge the battery is calculated. The battery capacity is determined using international battery standards.

What Are The Most Effective Battery Testing Methods

Discharge tests remain one of the most effective methods for testing your lithium battery. You can choose between constant current discharge, which is popular and effective, and the load profile discharge test.

Float Voltage Test

With the voltage test, each cell in the battery is checked. During testing, disconnect the battery’s positive and negative terminals from any load or charging system. Tests should be done using a multimeter set on the DC voltage.

Compare the cell voltages with the limits specified by the manufacturers. If the cells’ voltages align with the specified limits, the battery is okay and fully charged.

What Are The Most Effective Battery Testing Methods

High voltages indicate overcharging, resulting in high temperatures and grid corrosion. Low voltages show that the battery is not fully charged. A halfway charged battery is unable to supply the required power capacity. Standard voltage tests may be caused by cell plate sulfation.

Ohmic resistance test

The ohmic test involves measuring the internal resistance of the battery. Weak intercell connections may lead to poor performance of the storm. Use a low-resistance ohmmeter to check on the intercell relationship.

Consider measuring the ohmic resistance across and diagonally to test the intercell connection.

The IEEE recommends that the difference between two cell interconnections be less than ten percent of the total ohms. Ohmic tests, also known as impedance tests, indicate the life span.

How To Test A Lithium Motorcycle Battery?

A battery plays a very crucial role in a motorcycle. Therefore, it is essential to test your lithium motorcycle battery for abnormalities. Check in with a professional in case of some test failures and change your battery. Always plug the battery to be tested in a charging system for 1hour.

How To Test A Lithium Motorcycle Battery

Use of a multimeter

There are two types of multimeters – the digital multimeter that uses the LED to display the readings and the analog multimeter that uses a pointer. The digital VOM is the best as it gives accurate readings. 

The drill battery is best for areas without electricity. However, the battery gets worn out easily. While replacing the battery, it is advisable to test it. While testing lithium-ion drill battery, plug the battery into a charging system.

Unplug the battery and attach the multimeter’s positive and negative battery terminals to the battery. Ensure the red cable is connected to the positive battery terminal. The black line should be connected to the negative battery terminal.

Use of a multimeter

The voltage capacity will be displayed on the multimeter upon successful connection of the probes and the terminals. For a fully charged battery, the voltage will be slightly higher than the indicated voltage on the battery. 

If the multimeter voltage corresponds to or is lower than the indicated capacity, the battery is about to die and needs to be replaced. 

How Do You Know When Your Motorcycle Needs a New Battery?

It is hard not to know when your motorcycle needs a new battery. However, you don’t have to wait until the battery fails to operate. With frequent tests, you will be able to suspect a problem with your battery and address it accordingly. The machine’s charging system will also be able to sense a failing battery.

How Do You Know When Your Motorcycle Needs a New Battery

The following are the key indicators of a failing battery that needs replacement.

  1. Ignition problem. Starting problems are the first sign of a failing battery. If your motorcycle has a problem starting up, consider testing the battery for replacement.
  2. Age – with old age, the battery loses its power capacity and needs to be replaced with a new battery. Seek to replace the battery with the manufacturer’s recommendations.
  3. Long periods of no use – If you leave your motorcycle without service for a long time, the battery cells get corroded. Reviving the dead cells may prove to be a challenge. Consider replacing it with a new battery.
  4. Having several electrical appliances is another indicator that you need to replace your battery with a new one. Modern motorcycles come with high power consumption appliances that may drain your battery capacity.
  5. If your headlights and horn are fading, consider changing the battery. The headlights and the horn are an essential part of the motorcycle. Poor performing headlights may cause accidents. You will notice fading light and reduced horn volume when riding at night. 


Battery testing is an effective way to track battery health and thus enhance its reliability. The motorcycle is as good as the condition of the battery. Care and maintenance should be done once or twice a week with the lithium battery. You don’t have to wait until you notice some abnormalities.

With frequent tests, you are assured of stress-free rides. Testing your battery will help you determine when to replace your old battery with a new one.

For safety purposes, wear protective gear while handling the electrolyte. Handle the battery with care to avoid breaking the battery cells.

Leave a Comment