dewalt 20v battery charged but not working: Fix It In Minutes!

Possible answer: if your dewalt 20v battery charged but not working, it may be damaged. Check the contacts and terminals for dirt, corrosion, or damage, and try a different tool or battery to isolate the problem.

Dewalt power tools are trusted by millions of professionals and DIY enthusiasts for their performance, durability, and versatility. However, like any mechanical or electrical device, they may encounter issues over time, especially if subjected to heavy use, extreme weather, or improper handling.

One common problem reported by dewalt 20v users is that the battery appears to be charged, but the tool won’t run or runs weakly. This can be frustrating, as it may disrupt your work or delay a project. In this article, we will discuss some possible causes and solutions for this issue, and help you get back to work with your favorite dewalt tool.

dewalt 20v battery charged but not working

Dewalt 20V Batteries

Overview Of The Technology Behind Dewalt 20V Batteries

Dewalt 20v batteries utilize lithium-ion cell technology, which results in a high energy density, low self-discharge rate, and long cycle life. Additionally, the batteries feature advanced electronic controls that optimize their overall performance.

How do The Batteries Operate And What Could Cause Them To Malfunction?

The lithium-ion cells in dewalt 20v batteries are designed to deliver power at a consistent voltage until they reach a prescribed state of discharge. Once discharged, the battery will need to be recharged.

  • Overheating: Overheating can be caused by exposing the battery to high temperatures, such as leaving it in direct sunlight or placing it in a hot car.
  • Exposure to moisture: Exposure to moisture can cause the battery’s electronic components to short-circuit and stop working.
  • Overcharging: Overcharging the battery can lead to a shortened cycle life or permanent damage to the battery.
  • Physical damage: Physical damage to the battery, such as dropping it or exposing it to extreme force, can cause the battery to malfunction.

Importance Of Inner Workings Of The Battery For Effective Troubleshooting

The ability to troubleshoot battery charging problems can save time and money. By understanding how dewalt 20v batteries operate and what can cause them to malfunction, you can identify the root cause of the problem and take appropriate action. It is important to understand that dewalt 20v batteries have advanced electronic controls that regulate their overall performance.

This means that if you are experiencing issues with charging your battery, it may not necessarily be a problem with the battery itself. It could be an issue with the charging device, battery contacts, or other external factors. Understanding the inner workings of the battery can help to eliminate any guesswork and ensure that the appropriate steps are taken to remedy the problem.

If your Dewalt battery is issuing, should read that article: Dewalt 20v Battery Says Fully Charged But Not Working.

Reasons For Dewalt 20V Battery Not Working Despite Being Charged

Dewalt 20v batteries are reliable tools for many professionals. However, sometimes these batteries may fail to work despite being fully charged. This can be a frustrating experience, especially when you are in the middle of an important task. In this section, we will discuss the possible reasons for the dewalt 20v battery not working despite being charged.

Battery Age And Wear And Tear

Like all batteries, dewalt 20v batteries have a limited lifespan. After continuous use, they will eventually lose their capacity to hold a charge, making them unable to power your tool.

  • The battery takes longer to charge than usual
  • The battery drains faster than it used to
  • The battery is unable to hold a charge at all

If you notice any of these symptoms, it may be time to replace your battery.

Incorrect Charging Procedures

One common reason for the dewalt 20v battery not working despite being charged is incorrect charging procedures. It is essential to follow the correct charging procedures to avoid damaging your battery.

  • Always use a genuine dewalt charger designed for your specific battery model
  • Charge your battery in a cool, dry area
  • Do not overcharge the battery

Incorrect charging procedures can lead to battery damage, reducing its overall lifespan.

Issues With Battery Contacts

Another possible reason for the dewalt 20v battery not working despite being charged is issues with battery contacts. Battery contacts connect the battery to the tool, allowing it to power it. If these contacts are dirty or damaged, they can interfere with the power flow, preventing your battery from working.

  • Clean the battery contacts with a dry cloth
  • Check the contacts for any visible damage
  • Replace the battery contacts if they are damaged

Overheating And Temperature Fluctuations

Overheating and temperature fluctuations can also cause dewalt 20v batteries to fail to work despite being charged. Heat can reduce the overall lifespan of your battery, leading to damage and the inability to hold a charge. Temperature fluctuations, on the other hand, can also make your battery unstable, preventing it from charging properly.

  • Do not leave the battery in hot areas
  • Store the battery in a cool, dry place
  • Allow your battery to cool down before charging it

Deep Discharging Of The Battery

Deep discharging is another common reason for the dewalt 20v battery not working despite being charged. Deep discharging occurs when the battery is completely drained, which can damage your battery cells, reducing its overall lifespan.

  • Recharge your battery when it reaches 30 to 40% charge
  • Do not completely drain your battery
  • If you do not plan on using your battery for an extended period, store it with a 50% charge

There are various reasons why dewalt 20v batteries may fail to work despite being charged. By following proper charging procedures, checking for any visible damage, and storing your battery in a cool, dry place, you can extend the overall lifespan of your battery and continue using your tool without any disruptions.

Troubleshooting Dewalt 20V Battery Not Working Despite Being Charged

Dewalt 20V Battery Charged But Not Working

Dewalt’s 20v battery is a powerful, reliable, and long-lasting tool that can serve you well on any work site. However, even the best technology can sometimes run into problems. If you find that your dewalt 20v battery is not working despite being fully charged, don’t worry.

We have put together a troubleshooting guide to help you diagnose the issue and fix it in no time.

Step-By-Step Guide To Checking And Fixing Common Problems

Before you jump to any conclusions, you should check if there’s a common problem that’s preventing your battery from working.

  • Firstly, check to see if your battery is securely connected to your dewalt device. If the connection is loose, it may prevent the battery from working.
  • Secondly, check if the battery pack has been completely charged. If it’s not, it will not work. Also, check to see if there are any loose battery connections preventing the battery from charging.
  • If the battery is fully charged and securely connected to the device but still not working, try using a different dewalt device with the same battery. This will help you determine if it’s a problem with the device or the battery.
  • If the battery works with another dewalt device, the problem could be the original device’s battery contacts. In this case, you should clean the battery contacts and try to connect it again.

How To Diagnose The Issue?

Diagnosing the issue with your dewalt 20v battery is vital, and here are a few steps that can help you identify and fix the problem:

  • If your battery is not charging, check the charger to ensure it’s functioning correctly. Look for any visible damages or loose connections. If the charger has any problems, your battery won’t charge.
  • Check to see if there’s any corrosion or damage to the battery contacts. This could be preventing the battery from working correctly. If so, wipe the battery contacts with a clean cloth or use a small brush to get rid of any corrosion.
  • The battery may have reached its lifespan and needs replacement. Check the battery’s age and see if it’s beyond its recommended lifespan. If so, you need to replace the battery to ensure optimal performance.
dewalt 20v battery charged but not working

How To Properly Handle And Maintain The Battery To Prevent Future Problems?

Proper handling and maintenance of your dewalt 20v battery are vital to ensuring it works correctly and lasts longer.

  • Store the battery and charger in a cool, dry place, away from dust and moisture. This will help prevent any damage to the battery.
  • Clean the battery contacts regularly to get rid of any buildup or corrosion. Use a clean cloth for this.
  • Never use a battery that appears damaged or cracked. Such batteries are hazardous and should be disposed of responsibly.
  • Finally, keep your battery away from extreme temperatures or direct sunlight, as this can damage and reduce the battery’s lifespan.

Using the dewalt 20v battery can be an efficient way of powering your tools, but when it stops working unexpectedly, it can be frustrating. However, with this troubleshooting guide, you can diagnose and fix the problem quickly. Additionally, following the instructions on handling and maintaining your battery can help extend its lifespan and keep it working correctly.

Frequently Asked Questions(FAQs):

Why Won’t My Dewalt 20V Battery Hold A Charge?

Batteries have a lifespan, try replacing them or checking for any defects.

How Can I Fix My Dewalt 20V Battery?

Try recharging it multiple times, if unsuccessful, replace it.

What Causes A Dewalt 20V Battery To Stop Working?

It could be due to a faulty charger, battery defects, or age.

Can I Use Other Brands’ Chargers For My Dewalt 20V Battery?

It is not advisable, to use only dewalt authorized chargers or batteries.

How Long Does A Dewalt 20V Battery Last?

The lifespan depends on usage, typically 3-5 years under optimal conditions.


After all, a dewalt 20v battery that is charged but not working can be frustrating. But, the good news is that such issues can be resolved with a little troubleshooting. As discussed in the article, it could be due to a faulty connection, a dead battery, or a malfunctioning charger.

Hence, it is essential to check all of these components to identify the root cause of the issue. In addition, to ensure the longevity of your battery, it is advised to keep it charged according to the manufacturer’s instructions. Regular maintenance and care can also prevent such problems from occurring.

Remember, a well-maintained battery will always provide optimal performance and save you from unnecessary expenses. Lastly, always purchase genuine and authentic products from reliable sources to avoid any quality issues in the future.

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