6 Reasons Why Vape Pen Flashing Red When Charging (Fixed!!!)

Vape pen flashing red when charging

Did you ever plug in your vape pen to charge only to be greeted by an endless red flashing light? Maybe you were hoping for a speedy charge, but now you’re left wondering what’s causing this problem. This red light is a typical occurrence among vapers, and it’s not always evident what’s causing it.

In this article, we’ll look at the probable reasons for this problem and offer ways to help you troubleshoot and solve it quickly and easily. So, let’s get to the bottom of what’s causing that obnoxious red flashing light, and fix it once and for all.

Why would a vape pen flash red when charging?

When a vape is connected to a charger and begins to recharge, the battery LED indicator may begin to flash red. This may be a sign that the battery is not charging properly or that there is a problem with the charger or USB cable.

There are several reasons why the indicated lights may flash red on these devices. Some of these include:

1. Low Battery

The most common reason for your vape pen flashing red when charging is a low battery. Most vape pens will flash red to show that the battery is charging, therefore this is typical and anticipated behavior.

To resolve this issue, simply wait for the vape pen to finish charging. When the battery is fully charged, the red light should go out, indicating that it has reached its maximum capacity. It is crucial to note, however, that charging times might differ based on the type of vape pen, battery capacity, and charger used.

If you want your vape pen to charge quickly, we recommend using the charger that came with it. Using a different charger, especially one with a greater voltage or amperage, can cause the battery to be damaged and cause it to flash red while charging. Also, avoid charging your vape pen for extended periods of time, since this can cause overheating and battery damage.

It is important to remember that the battery life of a vape pen might vary based on how frequently it is used and the type of vape juice utilized. If your vape pen constantly flashes red when charging, it’s time to replace the battery or upgrade.

2. Battery Connection Problems

Because of a loose connection between the battery and the charger, your vape pen may flash red while charging. This can occur if the charger or charging port on the vape pen is unclean, damaged, or not aligned.

If there is dirt or debris in your vape pen’s charging port or on the charger, it can inhibit the connection and cause the vape pen to flash red. To resolve this issue, use a small brush or compressed air to clear the charging port of any dirt or debris that may be causing the connection problems.

If the charging port is not properly aligned with the charger, try moving the vape pen or the charger to see if it helps.

3. Overheating

Overheating is another typical cause of a vape pen flashing red when charging. Overheating can be caused by a variety of circumstances, including using the incorrect charger, charging the vape pen for an excessive amount of time, or a faulty battery.

Use the correct charger for your vape pen to avoid overheating and perhaps damaging the battery. It is critical to always use the charger that came with your vape pen or a charger built exclusively for it. Chargers with greater voltage or amperage ratings might overcharge the battery, resulting in overheating.

If you charge your vape pen for an extended period of time, it will most likely overheat. You need to always follow the manufacturer’s charging instructions, but if you believe that your battery is malfunctioning, stop using your vape pen immediately and take it to a repair shop for evaluation.

4. Faulty Battery

Faulty Battery

Credit: reddit

During charging, a malfunctioning battery or charger can potentially cause your pen to blink red. If you’ve tried cleaning the charging port, using the proper charger, and making sure the vape pen and charger are properly aligned but the problem remains, it could be an indication that your battery or charger is defective.

Because a malfunctioning battery can potentially do you injury, it is critical to replace it as soon as possible. Similarly, a defective charger can disrupt charging and potentially damage the battery. If you suspect this, you should replace it with a new one that is compatible with your vape pen.

If you need help diagnosing a defective battery or charger, you should take your vape pen to a repair shop or contact the manufacturer. They can fully see the problem and make recommendations for what’s best for your vape, as well as replace the broken component.

It’s important to remember that a malfunctioning battery or charger can be hazardous to you and those around you, so only use high-quality components that are compatible with your vape pen.

5. Voltage problems

Voltage issues are another explanation why a vape pen may flash red when charging. This might happen if the voltage output from the charging device is too high or too low, or if the voltage regulator in the vape pen is malfunctioning.

To resolve this, try an alternative charging device or cable compatible with your vape pen. You can also try replacing the batteries to check if they were the issue, but remember to drain them beforehand.

6. Software Glitch

In some cases, a vape pen may flash red while charging due to a software glitch. This can happen if the software on the vape pen is outdated or if there are issues with the firmware.

To fix this issue, you may have to update the software on your vape pen or reset the device.

Updating the software on a vape pen can vary depending on the manufacturer and the specific device model. Some devices may have an option to update the software automatically through the device itself or through a companion app.

If updating the software does not fix the issue, you may need to reset the vape pen to its factory settings. This will erase all data and custom settings on the device, so be sure to back up any important data before proceeding.


What more can you do to fix this?

What more can you do to fix this

Credit: aldvapor

There are several things you can try to fix the issue of a vape pen blinking red while charging:

  1. Check for battery connection issues: As mentioned earlier, one of the most common causes of a blinking red light is battery connection issues. Check to make sure the battery is properly connected to the charger.
  2. Inspect the battery: If the battery appears damaged, swollen, or otherwise abnormal, it may be time to replace it. Damaged batteries may not charge properly and could cause further issues.
  3. Clean the charging port, cartridges and battery contacts: Dirt, debris and even e-liquid can get stuck in the charging port or on the battery contacts, interfering with the connection between the battery and charger. Use a cotton swab to carefully clean your device.
  4. Try an external charger with a different voltage: If none of the above solutions work, try using an external charger to charge the battery.


How do you properly charge your vape?

Charging the vape pen is a simple and quick process that can be done in a few minutes. To get started, you need to have a rechargeable battery and a USB cable that fits the vape. All you need to do is connect the e-cigarette to the power source and it will automatically start charging, showing a green light.

It generally takes between one and three hours for the battery to fully charge, depending on its capacity. During the charging process, it is important that you monitor the charging and the blinking lights it shows. Most vape batteries have an LED indicator that lights up when charging is in progress, so you can always check on it.


A vape pen blinking red while charging can be concerning for vapers, but if you understand the potential causes and try out some of the suggested solutions, you can help resolve the issue and get back to your hobby. Remember to always use high-quality components for your vaping device and keep it clean to avoid potential issues in the future.

On top of that, if you experience any persistent problems, don’t hesitate to seek out professional help from a reputable vaping shop or even the manufacturer. And if you still have questions, let us know in the comments, and we will get back to you.


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