Monday, March 24, 2014

The problems of the Dewalt Charger and how to solve it

Dewalt chargers are the ultimate solution when it comes to charging most of the cordless electrical gadgets. The batteries that are chargeable by the Dewalt charger are those with the following specifications: 7.2V- 18V NiCd/Li-lon/NiMH (univolt batteries apart). They charge batteries in less than an hour and are fitted with LED indicators that displays the battery charging status whether it is charged, too hot or cold, charging or has power problems. When purchasing the battery it comes with an amazing 3 year warranty and 1 year free service. 



how to fix a Dewalt Charger




Sometimes the Dewalt charger may fail or send out different power problems that mystifies the user. The common problem associated with the Dewalt charger include users not being familiar to the various LED indications and their meaning. The Dewalt charger indicates a red blinking light while charging and lights green when fully charged. When connected to an unchargable battery, the Dewalt charger blinks in red color.

Another problem associated with the Dewalt charger is making high pitched volumes when fitted with a battery to charge. Usually the charger is not charging the battery at these instances. Some of the solution to this problem is checking the voltage of the battery to see whether it is below the discharged level or near it, if so the charger might not be the issue. Some other cause for the high pitched sounds could be weak or faulty capacitor which might need replacing.

Certain Dewalt chargers have fuses at the bottom; faulty fuses may cause the charger to fail. Changing a fuse is quite easy and the fuses are also available in most of the electrical shops. Suppose you need to change the fuse first disconnect the charger from the electrical supply, locate the fuse position, it varies across different chargers but, usually it is at the bottom. The fuse cover might be screwed, unscrew it to access the fuse then gently pry out the fuse from the holder and replace it with the new one. Put back the cover and screw it. If the fuse was the problem the charger should now work when plugged into power.

Powerline is another problem indicated by Dewalt chargers in certain occasions. This is common especially when charging new batteries. The cause of this might be a loose capacitor in the charger. It is advisable to get a technician to sort out this so that there are no future problems.

Dewalt chargers are a recognized brand known for producing quality appliances. When faced with any problems with this battery charger it is best to consider whether to troubleshoot the issue or contact the company. This is because it is considered a breach of contract to tamper with the gadget before the warranty offered during purchasing expires. Therefore, one should consider whether to go ahead and fix the charger or contact the seller to service your battery which is usually free under certain conditions. Though having that background know-how on the working of the Dewalt charger is of immense help to the user.


5 comments:

  1. Is this article a joke? Nothing here tells me how to fix the darned thing. "Background know-how" ?!? LMAO!

    Dewalt's chargers and batteries are recognized for being junk.

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  2. Agree with previous view. Always trusted DeWalt quality but this time it is absolute joke. Charger for our twin pack-drill/impact has failed for the 5th time! Each time being checked by DeWalt agent, piece by piece, only once batteries were replaced, problem still exist, we are on 4th charger and still can't find answer what is wrong with it. Absolute joke! The other twin set from competing brand is fine, 2 years in service. My advise: buy equipment with a "M" at the beginning and "a" at the end of the brand name. You wont regret it.

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    Replies
    1. Amen! I'm partial to Porter Cable as well... I have successfully rejuvenated my dead 18v NiCad Porter Cable battery just recently. I reckon the problem arose from just simple lack of use. I work on a tow boat so I'm gone for long periods at a time. One battery took charge fine but the other was hammer dead wouldn't do squat, and for no reason it seemed! I checked on a replacement and at around 50 bucks or so I could be the proud owner of a brand new battery. I just couldn't have that...
      So through some searching, and a lil studying, I've come across a useful bit of information that literally zaps ur batt back to life. All you have to do is determine which terminal is positive, and which is negative on the faulty 18v battery. Have yourself another, fully charged, 18v batt of the same brand or another brand it can even be higher voltage, which is what they recommended I believe. figure out the positive and negative sides to the jumper battery. When established, take a short wire and hook the grounds together from the charged battery to the faulty battery. With another short wire, hold one end on the positive terminal of the good charged battery. Take the free end of the now hot wire and tap it on the hot terminal of the faulty battery. It should have a healthy spark the first poke, but go ahead and poke it 10 times or so. I held mine against it for 2ta3 sec or so but I was using same Batts.... When done with that, unhook wires and slide in charger, batt should be charging as normal... If this works for you I'm happy I could help save that ridiculous amount of money it costs to replace a battery. There are also a few other tricks i got up my sleeve. Haha
      The batteries i used were NiCad 18v

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  3. I have taken 4 students on at my building site for "practical training" and one plugged my 110v input 18v output DeWalt charger into the 240 volt supply. When I try to charge the battery the charger indicates "problem powerline" my electrician friend opened up the charger and what appears to be a sealed fuse tests as an open circuit. Could this be the only issue with the non charging or could the rest of the circuitry be cooked?

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