6 Troubleshooting Fixes When Craftsman Battery Charger Blinking Red

craftsman battery charger blinking red
craftsman battery charger blinking red

Multi-power tools have become a crucial part of our lives, whether it is minor projects or robust usage.

So, you will find many owners relying on decent battery packs and similar options to get through the project. In most cases, you will have to do the same.

Otherwise, going through all of the extra hassles just to get a power tool without the power is not that great of an idea.

So, be sure to get a robust system from brands like DeWalt, Ryobi, or Craftsman. All of these brands offer amazing and decent systems to the owners.

Craftsman chargers are also pretty great when it comes to charging the batteries since they are safe, effective, and won’t cause your batteries any major harm most of the time.

Craftsman Battery Charger Blinking Red

Yet, there are certain reasons that your battery charger from Craftsman might be blinking red light on it. 

There can be several instances and different reasons, and after that, you will need to make sure that you are fixing the problems. A few such reasons that your craftsman battery charger might be blinking red are:

  1. Blinking Red fast

If the red light is blinking too fast on your craftsman battery charger, that is a clear indication that your battery might be deeply discharged or it might have been too hot.


To fix up that problem, it is better to connect a voltmeter to your battery in order to ensure that you are checking up on all the voltages there.

If it might be deeply discharged, it is better to consult an authorized craftsman support center, where they can charge your battery with a commercial charger, and that is going to help you out just fine.

In addition to that, you should never let your battery over-discharge at any time. Once you have that sorted out, you will also need to lightly check the battery to see if it is too hot.

If the battery is too hot, you will need to make sure that you disconnect the charger for a while and let the battery cool down since trying to charge a battery that is overheated can be a dangerous thing for you.

  1. Blinking Steadily

Yet, you might also see the red light blinking steadily, and that is a clear indicator that your craftsman battery charger is getting the job done and charging all those batteries perfectly.

With that, you don’t have a thing to be worried about, and it should be helping you out just fine to charge the batteries on your craftsman charger.

The red light that has been blinking for too long, steadily, might be the indicator that the battery might not be charging as it should.

That is certainly something that you will need to check upon, and anything can be bad, including the battery or your charger.

You should be getting that checked up properly from the Craftsman, and that will allow you to enjoy the perfect experience with the battery charger that you might have been using earlier.

  1. Limitations


There are lesser indicators on these battery chargers from Craftsman, and you can only figure out these conditions, and there is not much that you can do about these.

That is why you will need to make sure that if you are facing any problems with these craftsman batteries or the battery chargers, it would be better to get it checked by an authorized technician.

They will be able to properly figure out what is going on and fix it in the right manner as well.

  1. Check the Alignment

At this point, you just have to check the alignment of the battery with the unit itself. The issue might not even be that serious, and you will have to make sure that the terminals or contact points are properly engaged.


Any gunk on the contact points should be wiped to get a better response here. All that you’re trying to do is make sure that the flow of power from the charger to the battery is optimal.

There might not be any errors with the unit itself, and you will avoid many issues down the road by fixing the alignment.

Similarly, a bit of cleaning will do you well as you’re trying to rid the unit of the gunk and debris associated with the system. So, all that you need to do is to grab a can of compressed air and then wipe away all the gunk from the system.

It will barely take a few seconds, and you will be able to avoid hours of hassle. From now on, you need to also focus on proper storage of the battery charger, as it can have a huge impact on the final performance of the unit.

  1. Check For Hardware Issues

Hardware issues with the charger itself can also lead to the blinking red light. While it shows that there is power going into the charger, that doesn’t mean that your battery is picking up this power.

hardware issue

There are a ton of issues that can be at play here, and you need to call the dealer. There is no point in trying to go at it alone when you find the charger to be damaged.

Instead, you need to reach out to the dealer. He will take a bit of time to figure out the issue with you. From there, fixing the unit will come easy to you. 

It all comes down to claiming the warranty and engaging the dealer. The only two components involved here are the charger and the battery pack.

Once you’ve made sure that the battery pack is not to blame, then all issues point toward the hardware of the charger.

warranty claim

Sadly, you cannot fix the hardware yourself. You need to either take your charger to a certified repair center or try to get a new one by claiming the warranty.

There are no third options, and you might end up further damaging the charger in the process.

In some conditions, opening up the charger will also void the warranty. So, there is no point in taking that risk, as you will miss your shot at getting a new unit from the dealer.

  1. Check The Voltage

This should be the last thing that you need to check when you can’t seem to find any issues with the methods mentioned above.

check voltage

The issue with the voltage can be linked to a faulty outlet, and you can try your luck with a new one.

Be sure to also check the output from the main source, and it is a good idea to hire a technician to help with the power connections. You can’t fix these connections yourself and will run into more errors down the road.

So, be sure to involve the technician, and he will fix the power outlet for you. From there, you won’t have to deal with voltage errors or any appliance damage associated with the faulty outlet.

It is a good practice to hire an expert every six months to keep your connections in good condition.

Wrapping Up

These are the specifics that you need to keep in mind when the battery charger is not responding to any input. Most of the time, it is the battery to blame and not the charger.

However, that doesn’t mean that you will never run into errors with the charger. It all comes down to the operating conditions, and you need to check on the charger as well as the battery to solve the problem.

Usually, adjusting the alignment or jumping the battery will do the job. However, if you’re not too sure about the lifespan of the battery, you will have to get a new one.

Similarly, if you find the cord to be damaged, then installing a replacement is the only real option.

You can’t try to find the right angle or the orientation to get the cord working again. So, be sure to check up on the cord as well as the charger itself to figure out the issue.

Lastly, you will have to claim the warranty on the unit if you get a damaged charger out of the box.

You’re not liable for any of the hardware damages before the unit is delivered to your doorstep. So, you will have to demand a replacement, and the dealer will take charge of this situation.

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