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tech / sci.electronics.repair / Re: Dewalt Battery Charger Output Voltage

Re: Dewalt Battery Charger Output Voltage

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Date: Mon, 8 Jan 2024 03:39:42 -0800 (PST)
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Subject: Re: Dewalt Battery Charger Output Voltage
From: alexshab...@gmail.com (Alex Shabi)
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by: Alex Shabi - Mon, 8 Jan 2024 11:39 UTC

A voltage output of 47 volts from a charger that is supposed to charge a 14..4V battery is definitely not normal and indicates a potential issue with the charger. The charger for a 14.4V Dewalt cordless drill should provide an output close to the rated voltage of the battery, typically around 14-15 volts.

Here are a few things to consider:

Charger Regulation Issue: The charger may indeed be out of regulation, and this could be causing the excessively high voltage output. If the charger is not regulating the voltage properly, it could have damaged the battery.

Battery Damage: The high voltage from the charger could have damaged the battery. Lithium-ion batteries, like those used in cordless drills, can be sensitive to overvoltage conditions.

Faulty Charger: The charger itself may be faulty, and its internal components may need inspection or replacement.

In any case, using a charger with a significantly higher voltage than the battery's rating is not safe and could lead to further damage. I would strongly recommend against using this charger to charge the battery until the issue is resolved.

Here's what you can do:

Check the Charger Manual: Look for the charger's manual or specifications to confirm the correct output voltage. If it specifies a much lower voltage, the charger is likely faulty.

Contact Dewalt Support: Reach out to Dewalt's customer support or service center with the charger model and details. They can provide guidance on whether the voltage you measured is within the acceptable range.

Consider Replacement: If the charger is indeed faulty and has damaged the battery, you may need to replace both the charger and the battery. Using a proper and compatible charger is crucial for the longevity and safety of your cordless drill and its batteries.

In summary, a 47V output from a 14.4V charger is not normal and could indicate a problem. It's recommended to consult with Dewalt support or a professional technician for further guidance and to ensure the safety and functionality of your cordless drill. Answer Copied from https://iceagetools.com/hot-cold-delay-on-dewalt-charger/

Subject	Author
Dewalt Battery Charger Output Voltage	Alex Shabi