How To Fix A Dewalt Battery Charger That Got Wet

You are using an out of date browser. Information technology may not brandish this or other websites correctly.
You lot should upgrade or use an culling browser.

• Forums
• Other Sciences
• DIY Projects

Faulty DeWalt Battery charger for ability tools

• Appliances
• Thread starter DaveC426913
• Start engagement May 21, 2019

I've replaced the charger for my DeWalt tools several times, and now I may have to go out and go a fourth one.

I of them flashes a fault warning (steady boring flash), the other two do not light upwards at all.

At present, I exercise

not have care of my tools. All three of these chargers may have been exposed to a lite spray from rain getting into the slot where the terminals are (the chargers are protected, but air current carries mist). The terminals are non rusted; they look shiny.

The charging slot has a "drain" hole in the bottom, and the terminals are raised in a higher place the bottom, about as if it's designed to

preclude water from getting at the terminals.

I'm using the battery, so it'due south not entirely dead.

I find it hard to believe that a relatively simple device (it'due south just a transformer) could fail and then easily.

Can anyone advise some checks I might exercise to see if any ane of these chargers tin can be resuscitated?

Answers and Replies

One question Dave, have you tried the "charged" batteries with more than one tool? I assume you have just had to ask.

I only accept the one tool. I've been using my drill for the last week on the same charge, just it finally ran down (not all the way).
I've tried charging information technology with all iii chargers and I get a lilliputian action out of it, but it's not actually charging.

So I don't retrieve the drill is the problem. It is behaving fine.

I'll bet i of your neighbors has a Dewalt charger. See if they can accuse one of your batteries.

I'll bet one of your neighbors has a Dewalt charger. Run across if they tin accuse one of your batteries.

Ugh. The thought of asking my crazy neighbor for anything...

But seriously, I'yard pretty certain the batteries are fine. I've been using them for a year with no problem - until the charger gets a little misty.

Now, I practise not take care of my tools. All three of these chargers may have been exposed to a light spray from pelting getting into the slot where the terminals are (the chargers are protected, only current of air carries mist). The terminals are not rusted; they look shiny.

If moisture was able to get into where the terminals are, maybe information technology could also get into the guts of the charger, and corrode some of the connections or components inside. Information technology might exist useful to connect a voltmeter to the thing and see what voltage information technology's putting out. If the charger isn't working correctly, I would see what things look like within.
Likewise, I wouldn't leave it anywhere it could become wet.

Mark makes a good point. Can y'all take it apart and check for moisture-related corrosion/damage or it information technology i of those things where the didactics manual says something like "this first-class device can but be broken into by a qualified special person with a three-pronged framis, which if yous take one do not employ it or the device will probably explode and kill your entire family, including the goats" ?

I'm using the battery, and then it'southward not entirely dead.

But seriously, I'm pretty sure the batteries are fine.

Singular or plural? Both of my batteries slowly died over the years, so I bought new ones from Amazon recently and all is good now. My battery charger has never been left out in the rain, though...

Perhaps borrow a compatible battery from your crazy neighbor to run across if information technology works more than normally in your charger(south)?

If moisture was able to become into where the terminals are, peradventure information technology could besides get into the guts of the charger, and corrode some of the connections or components inside. It might be useful to connect a voltmeter to the thing and see what voltage it's putting out. If the charger isn't working correctly, I would see what things look like inside.

I will have to. But I swear information technology'southward not that bad.

Also, I wouldn't go out it anywhere it could get moisture.

That'southward crazy talk.

Singular or plural? Both of my batteries slowly died over the years, and so I bought new ones from Amazon recently and all is good at present. My battery charger has never been left out in the rain, though...

Perchance borrow a compatible bombardment from your crazy neighbor to run into if it works more normally in your charger(s)?

I already have some newer(ish) batteries. That's what I've been using. But I'll try that to rule out one cistron.

So the gist that I'one thousand getting is that at that place isn't some 'I got wet!' fuse in these things.

And so the gist that I'thousand getting is that at that place isn't some 'I got wet!' fuse in these things.

Well, no. They weren't designed to work underwater...

Tin anyone suggest some checks I might do to see if any one of these chargers tin be resuscitated?

The all-time is to cheque whether the output terminals are giving the proper voltage, with a multimeter or voltmeter.

If you lot go no reading (0 5), then a fuse has possibly tripped. Otherwise you take to cheque each and every component to come across if they are working.

Aww, come on. Google finds over 400 000 'dewalt charger schematic' (they make a LOT of different ones!) 'dewalt charger service transmission' finds ane 970 000 hits.

The label in your photograph shows that 1 is good for a broad range of different batteries; which probably means information technology has a rather smart IC in it that also senses what battery is inserted.

That said, first footstep is substitute the charger, and then substitute the battery. (cuts the search universe in one-half. )

The best is to check whether the output terminals are giving the proper voltage, with a multimeter or voltmeter.

If you lot get no reading (0 V), and so a fuse has maybe tripped. Otherwise you have to cheque each and every component to see if they are working.

I'grand not all that familiar with charger circuits, only I don't know if a no-load voltage cheque will work. It may be that the charger needs to sense a battery before it applies a charging voltage. I think that my 12V atomic number 82-acid bombardment charger (small one for motorcycles) behaves similar that.

DeWalt is a quality product. Have you lot considered their client service. You could recite yous deplorable history with multiple chargers. You lot might get tips from them, or yous might get a costless charger.

He might want to go out out the "underwater" part though...

I'chiliad not all that familiar with charger circuits, but I don't know if a no-load voltage check will work. It may be that the charger needs to sense a battery before it applies a charging voltage. I call up that my 12V lead-acid bombardment charger (pocket-size one for motorcycles) behaves similar that.

I'thousand not all that familiar with charger circuits, simply I don't know if a no-load voltage cheque will work. It may be that the charger needs to sense a battery before information technology applies a charging voltage. I call back that my 12V lead-acrid battery charger (modest one for motorcycles) behaves similar that.

Many chargers behave like that. Trickle chargers for vehicle batteries are examples, as you have said.

Only I don't think it would be difficult to connect the battery to the charger via 2

words wires, such that the charger terminals are still accessible past the probes. In one case the charger senses the battery, the multimeter can be used.

If the battery is in good condition, but the charger cannot sense it, then there tin be a gamble that the sensing excursion is faulty.

Edit: fixed typo.

Just I don't think it would be difficult to connect the bombardment to the charger via ii words ...

So, would these exist cuss-words or what?

And then, would these be cuss-words or what?

Typo, wires.

NiCd? Possibly fourth dimension to spring on the Li-ion band wagon. NiCd and NiMH base ability tools never really lived up to the "power" part, ever found them defective and very short lived in terms of charge so never bother with cordless. And so I tried a friends Milwaukee M18Fuel tools, was quite impressed and been replacing all my corded tools with Dewalt XR brushless, nada wrong with the red, I'1000 just a little OCD in that respect, so already having some black and xanthous, couldn't go alter color scheme now!

Deviation between NiCd tools of yesterday and the Li-ion+brushless is night and mean solar day, the brushless recip I accept gives my corded one a solid run for its money.

I'm not all that familiar with charger circuits, but I don't know if a no-load voltage check will work. It may exist that the charger needs to sense a battery earlier it applies a charging voltage. I remember that my 12V lead-acrid battery charger (small 1 for motorcycles) behaves similar that.

They exercise work like that. I watched a DIY video of a DeWalt charger not charging an extremely dead bombardment and it did exactly that. His trick was to give the dead battery a goose from another battery. Just enough so the charger could sense it.

DeWalt is a quality production. Have you considered their customer service. You could recite you sorry history with multiple chargers. Y'all might get tips from them, or you lot might get a complimentary charger.

Alas, that would exist pretty quack. At that place isn't really a glace slope hither, where I could blame it on something else and simply neglect to mention the water exposure. I'd have to outright lie.

You don't take to lie to ask questions. They should have better answers than PF.

You don't have to lie to inquire questions. They should have meliorate answers than PF.

Sure, merely the first question they're going to ask is: Are you storing them properly and keeping them dry?
And I'll accept to say "Well..."
And then they'll say "Great. Annihilation else we can help you lot with today?"

That's what I mean past no slippery slope. There's actually nothing to inquire that doesn't immediately provoke the obvious question.

Sure, but the first question they're going to enquire is: Are y'all storing them properly and keeping them dry?
And I'll have to say "Well..."
And then they'll say "Not bad. Anything else we tin assist you with today?"

That's what I mean past no glace gradient. There'southward really nothing to inquire that doesn't immediately provoke the obvious question.

Yeah, but that doesn't mean they won't have an answer (possibly preceded past, "Well, y'all're non supposed to Practise that").

Alas, that would be pretty quack. There isn't really a slippery slope here, where I could arraign information technology on something else and only neglect to mention the h2o exposure. I'd accept to outright prevarication.

You don't have to lie. You can tell them, "Yes, information technology got wet. Merely can you tell me how I can repair information technology now?"

If you open the charger, a close look will tell yous if the water has had bad effects - corrosion. If you tin confirm that none of the components/soldering is corroded, you can surely ask the client service how you can repair it.

Y'all don't accept to lie. You can tell them, "Yep, it got wet. But tin you tell me how I can repair it now?"

If you open the charger, a close look will tell y'all if the water has had bad effects - corrosion. If y'all can ostend that none of the components/soldering is corroded, you can surely ask the customer service how y'all can repair it.

Not that I want to vanquish this to expiry, but I know how this must go:

"There are no user serviceable parts within. We strongly recommend that you do not open the case, as burn, serious injury or death may occur."

They can't say anything else. If they were to offer even the slightest proposition of how one might fix something inside a closed electrical device, they would be opening themselves upwardly to legal liability.

If you lot can confirm that none of the components/soldering is corroded, you can surely inquire the client service how you tin can repair information technology.

That's not normally how Customer Service for appliances works, at to the lowest degree non in my experience. Commonly you are asked to have it to an Authorized Repair Center (where they will tell you that information technology would simply be cheaper to buy a new one in this case).

I used to service a lot of friends' TVs for gratuitous using SAM'Due south Photofacts schematics/repair manuals. Information technology was neat practise and experience, and information technology saved my friends a fair bit of money. Unfortunately, Television set manufacturers and other appliance makers generally do not publish schematics and repair manuals whatever longer for the general public. Information technology works better for them to only make those available to their "Authorized Service Centers"...

Epilogue:

I wimped out. I happened to be at the store, and so I just bought a new i.

I volition exist handing in my Man Card by end-of-24-hour interval.

The sad news is: looking at how the new one is behaving is making me suspect that ane of the originals was/is really working fine. Then now I have 2.

so I just bought a new one.

Makita sells chargers with every tool; try keeping them sorted ane from some other (voltage-wise) just with the screwdrivers/drills. In principle they're all "keyed" differently to avoid battery explosions and fires, but ....

Makita sells chargers with every tool; endeavour keeping them sorted one from another (voltage-wise) just with the screwdrivers/drills. In principle they're all "keyed" differently to avert battery explosions and fires, but ....

Sorry, I don't understand. All my chargers are 18V and DeWalt.

(Which won't terminal long since DeWalt is now pushing their 20V arrangement.)

In that location are no user serviceable parts inside.

Is a reliable indicator that there IS a fuse inside! Often soldered in.

Every one I've opened with that message had a fuse. Most WITHOUT that message did not have a fuse.

Thank you,
Tom

Non that I desire to crush this to death, simply I know how this must go:

"There are no user serviceable parts within. We strongly recommend that y'all do not open up the case, equally fire, serious injury or death may occur."

They tin't say anything else. If they were to offer even the slightest proffer of how one might fix something within a closed electrical device, they would be opening themselves upward to legal liability.

I bet @Wrichik Basu comes from a land where lawyers haven't ruined everything yet. I'g all the same waiting for a bill of fare or wristband I tin can carry that shows I've waived whatever right to this nebulous 'liability' idea and do non need to be treated like an unskilled child by technical departments. In that location is a stiff 'right to repair' movement over here, and the backlash confronting WEE is mounting. Hopefully soon we'll accept more serviceable (modular?) devices and perhaps even repair shops again.

*rant over*

Equally per @Tom.G , most things with a switch-style supply have either a fuse or equivalent, such as a fusible resistor. The latter seem susceptible to degrading over fourth dimension due to rut cycles and break the dominion that fuses don't blow for no reason.

... There is a strong 'right to repair' movement over here, and the backfire against WEE is mounting. Hopefully presently we'll have more than serviceable (modular?) devices and mayhap fifty-fifty repair shops again.

*rant over*

What is "WEE"?

I certianly agree that more products should be serviceable/modular where possible. I wish the Environmental groups would get on this. I try to repair most things, not always possible or worth it, simply most people simply throw them out.

I empathise if size/weight is critical, that a non-replaceable battery might be needed, simply if not, and then make information technology replaceable, please!

I certianly agree that more than products should be serviceable/modular where possible. I wish the Environmental groups would get on this. I endeavour to repair most things, non e'er possible or worth it, but virtually people just throw them out.

I sympathize if size/weight is disquisitional, that a non-replaceable battery might be needed, but if not, and so make information technology replaceable, please!

Companies want you lot to either call them directly for servicing, or throw away the product as a whole. I accept often been asked to completely become a new UPS, while the only matter malfunctioning in information technology was the battery.

Waste matter electrical/electronic equipment. Oft a whole device thrown away because of a croaky solder joint, because of lead-complimentary solder (RoHS) regs.

Suggested for: Faulty DeWalt Battery charger for power tools

• Final Mail
• Jan 4, 2010

• Last Post
• Nov 16, 2011

• Last Post
• Jun 20, 2018

• Last Post
• Oct 4, 2016

• Last Post
• Nov 30, 2019

• Terminal Mail
• Feb 23, 2019

• Final Mail
• Sep 22, 2020

• Last Postal service
• Jul 24, 2022

• Last Post
• May 5, 2021

• Forums
• Other Sciences
• DIY Projects

How To Fix A Dewalt Battery Charger That Got Wet,

Source: https://www.physicsforums.com/threads/faulty-dewalt-battery-charger-for-power-tools.972288/

Posted by: borismoseect1983.blogspot.com

Share this post