Troubleshooting a Schumacher Battery Charger

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Schumacher Electric has been a premium manufacturer of auto parts and electronics for over fifty years. With that in mind, Schumacher battery chargers are recognized around the world as high quality pieces of equipment. In fact, the company is an official supplier for NASCAR.

Of course, not every manufactured product is going to operate perfectly for its entire lifespan. Even the best battery chargers can malfunction. In this article, we are going to outline some basic checks, guidelines, and troubleshooting methods for Schumacher battery chargers.

How To Check The Condition Of Your Battery

First and foremost, it is important to understand that your battery charger may not be the problem. Very often, your battery may be experiencing issues, rather than your battery charger.

Before you begin to diagnose any symptoms of your Schumacher battery charger, you will want to properly check the condition of your battery. Here are some steps to help you do that:

  • Use a voltmeter to ensure the voltage is between 12.4 and 12.7 volts.
  • Alternatively, you can test your battery with a multimeter or a power probe.
  • You should always look for any leaking or corrosion on the battery.

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Schumacher Battery Charger Problems And Solutions

Schumacher battery chargers are relatively simple machines. Here, we will explore some of the most common problems and fixes for typical, routine issues.

1. The battery charger does not recognize a battery

If a battery charger does not recognize a battery, is it very likely that there is an issue with the battery, rather than the charger.

In order for the battery charger to turn on and work properly, the battery must reach at least 4 volts. Oftentimes, the battery has been deeply discharged. In this case, it will almost always be a battery issue.

2. The charger will not turn on when properly connected

If your Schumacher battery charger will not turn on while it is properly connected, you may need to replace your main power regulator board. Double-check to make sure your connection is secure and that your battery is working properly before replacing a part.

3. Battery will not charge when the charger is connected and turned on

If the display on your Schumacher battery indicates that is on, but not charging, follow these steps.

First, jiggle and rock your clips back and forth. This will ensure the problem is not with the connection.

Next, try a different appliance:

  • If you discover that you are able to charge a different battery with the charger, then the original battery is defective.
  • If you are not able to charge another device, then you may have to replace your battery charger.

4. There is a clicking sound while the battery is charging

Clicking sounds are very common when using a Schumacher battery charger. If you begin to hear a clicking noise, simply allow the device to continue to charge for up to 20 minutes. Ensure that the leads are on the correct poles.

If they are and the clicking continues, it is likely a problem with the battery. If the problem persists with a new battery, there may be an issue with the connection.

5. Your Schumacher battery charger is clicking on and off

There are a few reasons why your battery charger may switch from on to off. Schumacher battery chargers have built-in protection systems.

If your battery may overheat, the charger will automatically switch it off in order to prevent damage. If the temperature seems normal, then unplug the charger and reverse the connections.

Reversed connections is the reason causing the Schumacher battery charger cannot charge your battery.

6. Your Schumacher battery charger is blinking a yellow light

Normally, the light on a Schumacher battery charger is either yellow or green. Yellow indicates charging and green indicates that the battery is full.

If you see a blinking yellow light, this means that your battery is in “Abort mode”.  Unfortunately, abort mode prevents a battery from finishing its charge. Simply unplugging, waiting, and replugging in your charger is the best way to overcome a blinking yellow light.

Guidelines In Using A Schumacher Battery Charger

Find the right place to charge your battery

Overheating is the number one problem that causes batteries to defect. Choose a sensible place to charge your battery when using a Schumacher battery charger.

For example, a good place to charge any battery is a well-ventilated room with plenty of space for the battery to “breathe.”

Use the right charging mode for different battery types

The technology your battery uses is the most important thing to know about your power system. The most common types of battery seen on the market today are flooded, gel cell, AGM, and lithium-ion.

More advanced technologies come with the ability to prevent damage from overcharging. This will help determine the types of charging modes you can use.

Float mode (also known as maintaining mode), is a type of automatic charging that uses cycles to prevent a battery from overcharging. Trickle charging does not have this circuitry included.

In order to fully understand which kinds of charging you can use, you must fully understand the capabilities of your battery. Researching online and reading battery manuals is the best way to learn about your individual charging capabilities.

Always use the correct voltage charger

The voltage of a battery will always determine the best charge controller to use. In most cases, automobiles and smaller appliances will run using a 12V battery.

Smaller appliances like lawnmowers may use a 6V battery. Thankfully, some of Schumacher’s battery chargers are designed to handle both 6V and 12V loads.

Unfortunately, if you were to use too high of a voltage battery charger, you can potentially damage your battery. Incorrect voltage regulation can lead to loss of performance or overall battery life.

Final Thought 

In conclusion, even the best instruments may experience problems. In this case, it is very important to understand the basic malfunctions of your battery before setting blame on the battery charger.

We hope that this guide was helpful to you when troubleshooting your Schumacher battery charger.

RELATED: Schumacher SC1343 vs Battery Tender Plus vs Noco Genius2: Which Is The Best Trickle Charger?

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