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How To Fix Dewalt Flexvolt Battery Not Charging

When faced with a Dewalt Flexvolt battery that is not charging, troubleshooting the issue can be a methodical process. From checking the battery connections to examining the charging port for any anomalies, each step plays a crucial role in identifying the root cause of the problem.

However, what happens when these initial measures fail to yield results? Is there a more intricate solution waiting to be unveiled to bring the battery back to life? Let's explore further to uncover the next steps in resolving this vexing issue.

Key Takeaways

  • Check battery connections, clean ports, and reset memory.
  • Test charger with another battery and update firmware if needed.
  • Verify power source, battery compatibility, and error messages.
  • Contact Dewalt support for detailed troubleshooting and repair options.

Check Battery Connections

To ensure proper charging of the Dewalt Flexvolt battery, it is crucial to meticulously inspect and secure the battery connections within the charger. When inserting the battery, make sure it is fully seated and securely connected to the charger to establish a proper charging connection. Any debris or obstructions that hinder the contact between the battery and charger should be removed to facilitate optimal charging performance. Additionally, verifying that the charger is plugged into a functioning power outlet is essential to ensure the battery receives the necessary power to charge effectively.

Cleaning the charging contacts on both the battery and charger is also vital to eliminate any dirt or residue that may impede the charging process. If, after these steps, the battery still does not charge, trying a different charger can help identify whether the issue lies with the battery itself or the charger. By ensuring these connections are secure and free of obstacles, you can maximize the chances of successfully charging your Dewalt Flexvolt battery to its full capacity.

Inspect Charging Port

Upon examination of the Dewalt Flexvolt battery, it is imperative to thoroughly assess the condition of the charging port for any potential obstructions or damage that could impede the charging process. Checking the charging port is crucial as any debris, dirt, or damage can hinder the proper connection between the battery and charger, leading to charging issues.

To effectively inspect the charging port, follow these steps:

  1. Look for Debris: Inspect the charging port using a flashlight to identify any debris, dirt, or foreign objects that may be obstructing the connection.
  2. Clean Carefully: Use a soft brush or compressed air to delicately clean the charging port and remove any particles that could disrupt the charging process.
  3. Check Alignment: Ensure that the charging pins on both the battery and charger are clean, properly aligned, and free from any dirt or corrosion to facilitate a secure connection.
  4. Contact Customer Service: If the charging port appears damaged or faulty after inspection, consider reaching out to DeWalt customer service for further assistance or repair options.

Clean Battery Terminals

Inspecting and maintaining the cleanliness of the battery terminals is essential to ensure optimal charging performance for your Dewalt Flexvolt battery.

To begin, use a clean, dry cloth to wipe the terminals and remove any dirt, grime, or debris that may be affecting the charging process. It is crucial to inspect the terminals for any signs of corrosion or damage that could hinder the connection between the battery and charger.

If corrosion is present, gently scrub the terminals with a wire brush or fine sandpaper to eliminate stubborn buildup. After cleaning, ensure the terminals are completely dry before reinserting the battery into the charger to prevent electrical issues or damage.

Regularly cleaning and maintaining the battery terminals is a simple yet effective way to prevent charging problems and extend the lifespan of your DeWalt FlexVolt battery. By following these steps, you can help maintain the efficiency and performance of your battery.

Test Charger With Another Battery

Consider evaluating the functionality of the charger by testing it with another known working FlexVolt battery. This step can help determine if the issue lies with the battery itself or with the charger.

Here are some steps to follow when testing the charger with another battery:

  1. Verify that the charger is functioning properly by charging a different FlexVolt battery.
  2. If the charger successfully charges the alternate battery, the problem may be with the original battery that was not charging.
  3. Confirm that the battery is securely connected to the charger to ensure proper charging and avoid any loose connections that could impede the charging process.
  4. Troubleshoot by isolating the source of the charging issue between the battery and the charger, as this can help pinpoint where the problem lies and guide further steps in resolving the charging issue effectively.

Reset Battery Memory

Resetting the battery memory of DeWalt FlexVolt batteries can be an effective solution for resolving charging issues.

When facing problems with charging, one method to try is discharging the battery completely by using it until it drains entirely.

After the discharge process, it is recommended to allow the battery to cool down for approximately 15-20 minutes before attempting to recharge it.

This cooling period is crucial as it helps recalibrate the battery's internal memory, potentially addressing charging issues.

However, if even after resetting the battery memory the charging problem persists, it could signal a more complex underlying problem that may necessitate professional intervention.

Update Charger Firmware

After resetting the battery memory of your DeWalt FlexVolt battery, the next step to address charging issues is to check for available firmware updates for your charger. This process involves ensuring that your charger is equipped with the latest software to optimize its performance and compatibility with the battery.

To effectively update the firmware, follow these steps:

  1. Check for Updates: Visit the official DeWalt website or reach out to customer support to inquire about any available charger firmware updates.
  2. Compatibility Improvement: Updating the charger firmware can potentially resolve compatibility issues between the charger and the FlexVolt battery, leading to more efficient charging.
  3. Enhanced Performance: Firmware updates may also improve the overall charging performance of the charger, ensuring faster and more reliable charging sessions.
  4. Careful Instructions: When updating the firmware, carefully follow the manufacturer's instructions to prevent any errors or complications that may arise during the process.

After updating the charger firmware, test the charging process with your FlexVolt battery to confirm if the issue has been successfully resolved.

Replace Faulty Charger

To address charging issues with your Dewalt Flexvolt battery, replacing a faulty charger is a practical solution to ensure efficient power replenishment. If your original charger, such as the DCB 115, is malfunctioning or showing signs of damage, it is advisable to purchase a new charger. When acquiring a replacement charger, confirm its compatibility with Dewalt FlexVolt batteries to guarantee optimal charging performance.

Before making the purchase, inspect the charger for any visible wear or damage that could be impacting its functionality. Once you have the new charger, test it with a known working battery to verify that it is operating as expected and effectively charging the battery. If the new charger fails to resolve the charging issue, it is recommended to contact Dewalt customer service for further assistance and troubleshooting guidance.

Contact Dewalt Customer Support

Facing persistent issues with your Dewalt Flexvolt battery not charging? Contacting Dewalt Customer Support at 1-800-433-9258 can provide you with expert assistance and guidance to address this concern effectively.

When reaching out to customer support, make sure to explain the specific problem you are facing with your Flexvolt battery in detail. Provide information about your charger, battery, and any error messages or indicators you have noticed.

Following the troubleshooting steps or recommendations provided by Dewalt customer support is crucial to resolving the battery charging issue. If the problem persists even after troubleshooting with customer support, consider exploring warranty coverage or repair options for further assistance.

Remember that Dewalt's customer support team is there to help you navigate through technical difficulties and ensure your tools are functioning optimally.

Frequently Asked Questions

Why Is My VAX Battery Not Charging?

The inability of a Vax battery to charge may be due to various reasons such as loose connections, power supply issues, physical damage, or a faulty charger. Troubleshoot these factors systematically to identify the root cause and resolve the charging problem effectively.

How Do You Revive a Lithium Battery That Won't Charge?

To revive a lithium battery that won't charge, troubleshoot by checking for visible damage, trying a different charger, and contacting customer support if issues persist. Do not attempt to open the battery due to safety concerns.

How Do I Know if My Dewalt Battery Is Bad?

To determine if a DeWalt battery is faulty, assess for physical damage, test voltage output with a multimeter, observe overheating or unusual smells during use, compare performance to specs, and consult DeWalt support if needed.

Why Do Dewalt Batteries Stop Charging?

Dewalt batteries can cease charging due to issues like improper placement on the charger, loose connections, unmonitored state of charge before charging, and the need for careful handling. Quick discharge during use may indicate charging problems.


In conclusion, troubleshooting a Dewalt Flexvolt battery not charging involves:

  • Checking battery connections
  • Inspecting the charging port
  • Cleaning battery terminals
  • Testing the charger with another battery
  • Resetting battery memory
  • Updating charger firmware
  • Replacing a faulty charger
  • Contacting Dewalt customer support

By following these steps, one can effectively resolve issues with charging the Dewalt Flexvolt battery.

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Alex Mitchell
Alex Mitchell

Alex Dockman is an IT Systems Engineer and tech enthusiast with a knack for making complex technology topics understandable. With a background in Computer Science and hands-on experience in Silicon Valley, he shares his insights on docking stations and connectivity solutions, helping readers navigate the tech world. Alex's writing is known for its clarity and precision, making technology accessible to all.

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