How To Reset A Schumacher Battery Charger?

Resetting your Schumacher battery charger could be a smart troubleshooting step if you're having issues with it. If you would like to learn how to reset this battery charger, you are on the right page. This is what we learned after conducting thorough research to assist you.

Resetting your Schumacher battery charger is easy. All you have to do is unplug it from the outlet for a short while, then plug it back in. Doing this will let the charger go through a recalibration process before it is ready to charge a battery again.

In this article, we’ll address further troubleshooting of the Schumacher battery charger. We’ll also share with you the proper usage of this battery charger and some of the best models available. More information is ahead, so keep on reading.

How To Troubleshoot A Schumacher Battery Charger

A Car battery with red and black battery Jumper Cables with copper clamps attached to the terminals.

The Schumacher battery charger can help your battery charge quickly and protect it from problems like overcharging.

You can sometimes fix issues with the Schumacher battery charger by just resetting it. You can reset the charger by simply unplugging it or momentarily removing the negative battery clip. If necessary, choose your preferred battery type and charge rate once more.

In order to reset it, the charger must first be linked to a battery and connected to an AC outlet. A reset is a must when the light-emitting diode (LED) on the “CHECK” of your charger’s control panel continues to blink before the battery is fully charged.

This will take place if the battery's full charge hasn't been achieved after 24 hours. A really large battery or bank of batteries may require more power than the charger can supply in 24 hours. 

In addition to resetting, here are more troubleshooting methods you may use for specific issues that your Schumacher battery charger may encounter:

The Charger Is Connected But The Battery Is Not Charging

The charger may not be in charger mode—it could be in tester mode. Try pressing the “CHARGE RATE” button to choose a charge rate and start charging.

Indicator Lights Flash Erratically

Possible flaws with the charger. When the charger was plugged in, a button may have been depressed. You can go to the store for a replacement. You can also unplug the device and then plug it back in, making sure nothing is touching the control panel.

Charger Remains On Even After Being Unplugged

It's possible that the battery is powering the charger’s display. Detach the battery or press the switch for the charge rate or battery type. 

There are various situations with the battery charger that can seem problematic. The measured current may be significantly lower than the chosen current, the fan may abruptly go on and off, or the charger could make a clicking sound. These things happen normally, so you should not be concerned.

How To Use A Schumacher Battery Charger

Closeup of woman hand holding battery cable copper wire for repairing broken car by connect battery with red and black line to electric terminal by herself. Car maintenance and transportation concept. - How To Reset A Schumacher Battery Charger?

The improper use of a battery charger is sometimes the cause of its malfunction. To resolve this problem, follow these detailed steps.

1. Wear Safety Gear

Because you will be handling batteries, put on safety gear before working. Batteries contain battery acid, which is corrosive. Gloves and safety goggles can prevent contact and keep you safe.

2. Decide Where To Charge The Battery

You can remove the battery or leave it in the engine compartment. If you remove the battery, take the grounded terminal off first and move the battery to a flat, well-ventilated area.

To prevent sparks, make sure to turn off the engine and any accessories. Carefully clean the battery terminals.

3. Determine Which Battery Post Is Grounded Or Attached To The Chassis

This is usually a negative post but whatever it is, do the following connection:

For Negative Post

Attach the positive (red) output clamp to the battery's positive post. For a strong electrical connection, rock and twist the clamp back and forth. 

Connect the negative (black) output clamp to a substantial, unpainted metal component of the engine block or chassis that is far from the battery. Do not attach the clamp to the negative battery post, the fuel line, the carburetor, or other sheet metal components.

For Positive Post

Attach the black output clamp to the negative post of the battery. Next, attach the red output clamp to an unpainted metal area on the engine block or chassis. Do not attach the clamp to the positive battery post, the fuel line, the carburetor, or other sheet metal components.

4. Connect To A Power Source

Before connecting the source, make sure the battery and the charger have sufficient space between them. Due to the battery's gases, the charger may become damaged if it is near or on top of the battery. 

Plug the battery charger into an alternating current (AC) outlet or properly grounded outlet. To lower the risk of electric shock, the charger must be grounded. After you plug in, the charger will configure to the regular battery type tester mode.

5. Select The Proper Controls

To choose the preferred charge rate and battery type, press the relevant control buttons on your charger. The charging procedure should begin as soon as the charger's LED illuminates yellow. If the light is red, check for proper cable connections.

6. Disconnect The Connectors And Plug

Before attempting to unhook the output clamps from the charger, unplug its power cable. Remove the output clamp from the engine block or chassis while keeping a safe distance from the battery. 

Last but not least, take the output clamp off of the battery post. Then clean the charger and store it in a dry area.

What Do The Lights On A Schumacher Battery Charger Mean?

Maintenance car battery by yoursalf

By observing the indicator lights on your Schumacher battery charger, you may learn a lot of valuable information. The following are the meanings of its LED indicator:

  • Steady Red Light: Properly connected battery.
  • Flashing Red Light: Connection with reverse polarity detected.
  • Steady Orange/Yellow Light: Battery is charging.
  • Flashing Orange/Yellow Light: Charging has ceased because it is in an abort mode.
  • Steady Green Light: Maintenance mode for the battery charger.
  • Flashing Green Light: Charging is finished.

What Are The Best Models Of Schumacher Battery Chargers?

Battery in a boat being charged with a small battery charger

Here are a few reliable Schumacher battery chargers you should check out if you're shopping for a new one.


It is an efficient battery charger that produces 13 volts (V) and 15 amperes (A) of current. It takes 16 hours to fully charge a 105 amp-hour (Ah) battery, which is relatively fast. The SC1280 is portable, lightweight, and simple to set up and operate. 

Click here to see this Schumacher SC1280 battery charger on Amazon.

The battery voltage may be automatically detected, and it can switch between 6V and 12V modes. Motorcycles typically have 6V batteries, but most cars utilize 12V batteries.

This charger features trickle charging, desulfation mode, and a two-year warranty. To prevent overcharging, it also features an automated shutoff mechanism. 


The Schumacher SC1281 model combines tremendous power and practical mobility. The item may supply 2A to 12A of electricity to charge a car battery slowly. For a quick boost, use 30A or even 100A to serve as a jump starter.

Click here to see this Schumacher SC1281 battery charger on Amazon.

The charging device itself features a handle so that moving it is easy. It weighs around 12 pounds. You don't have to worry about overcharging your battery because it is an automatic smart battery charger.

The charger runs more securely due to its reverse polarity protection, which ensures that it cannot be used if the clamps are linked to the wrong car battery terminal.


This SC1309 can both charge a vehicle and give a decent jump start. Battery charge levels can be determined using the built-in tester, which also offers certain diagnostic features.

Click here to see this Schumacher SC1309 battery charger on Amazon.

It is adaptable and charges quickly despite being a little heavier than our other top-rated car battery chargers. It has desulfation and float modes, and it is simple to use. A 105 Ah battery may be charged completely with the SC1309 in roughly 16 hours.


This charger weighs nearly 30 pounds and is about 2 feet tall. It has a handle and wheels, which makes the weight more tolerable. 

Click here to see this Schumacher SC1325 battery charger on Amazon.

It has charging and maintenance modes that deliver 2A or 6A of electricity. It can jump-start small engines with 250A or provide a 40A boost to restore a battery. Although there are hazards associated with these quick charges for your battery and car, they could be required in an emergency.


Charging battery car with electricity trough jumper cables.

A Schumacher battery charger is helpful for maintaining your batteries. However, problems can arise with the charger, so it is important that you understand the basic issues and how to fix them.

If you found this article helpful, check out these related posts.

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