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Why won't makita dc1804 charger work?

Battery will not charge even though it shows a green light

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: makita dc1804f charger will not charge new i-mh 1834 18v battery

I think your tryiong to charge NIMH batteries oon a charger designed for Lithium Ion batteries. With all the new style batteries such as NICAD, NIMH and LI-ION, charging becomes difficult. Most chargers pre NIMH and LI-ion, were designed for NICAD's. The best advise, match your batteries with the correct charger

Posted on May 23, 2008

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  • 625 Answers

SOURCE: Makita LXT 18V will not charge

looks to me like a defective batterie

Posted on Aug 21, 2008

  • 2 Answers

SOURCE: I have a li-ion Makita BL1830 18V 3.0Ah battery

Sorry Mate your battery is dead...
The makita lithium batterys dont like getting worked hard quickly.
There is a chip in them that recognice each battery to each specific charger. Try another charger. This has not worked for me. Try anyway

Posted on Nov 27, 2009

rowdy45176
  • 2176 Answers

SOURCE: hi i have a makita charger that flashes red and

there is a problem with the charger and given the age I would take it to an authorized dealer and get a replacement. If you give me your general area I will try and locate one close to you. Please before voting if you need more assistance let me know. Thank you

Posted on Feb 02, 2011

Asbestos 56
  • 191 Answers

SOURCE: I have two drills, two

I have to agree, I assume you have tried the the same battery on both chargers? is it possible that one charger ruined all the batteries? I wish I could offer some real help other then to say "hmm." But my best guess is that one charger ruined all the batteries. unless you use them both at the same time, then it would be hard to have them all quit at once. -

Posted on Jun 20, 2011

Testimonial: "Thank you for your fast response! I now see one charger does not seem to work at all. I might have used the bad charger to charge all of them. Thanks!"

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2 Answers

My charger only charges for 3 min then green light comes on saying it's fully charged


You could disassemble the battery and replace only the small 6 or 8 accumulators inside. Pay attention to the correct wirings. I replace the original accus NiMh with Li-ion and another charger, off course.

Nov 19, 2014 | Makita Universal Charger DC1804

1 Answer

Makita DC1804T charger


No, batteries age even if not being used.

Mar 28, 2014 | Makita Univ Volt Charger

1 Answer

Red and green flashing lights on 18v lxt charger


Batteries don't always look degraded but if they've been in use for a while or have a bad cell, they will show up bad on the charger and it won't charge them. The only way to test the batteries is to try to charge them on another charger. If the batteries show defective on another charger, they are bad and you'll have to replace them. Also try to charge some batteries you know to be good on your charger to see if it's the problem. If your batteries charge on another charger, your current charger is bad and they don't have any replaceable parts in them so you'd be looking at replacing it.

Feb 21, 2012 | Makita Tools & Hardware - Others

1 Answer

What does a red blinking light mean on a makita dc1804 charger?


I would clean the contacts on the battery to be charged and the charger. You can do this with a discharged battery and the charger unplugged usins a small mechanics wire brush,they can be had made like a tooth brush and work well for tight places. Gently brush and then blow out with air. Make sure that battery is firmly seated in charger and if light continues to flash you probably need a new battery. Thank you.

Mar 07, 2011 | Makita Garden

2 Answers

Faullty makita DC1804T charger red lights keeps flashig and wont turn green.


I think if you have a battery that is pretty much dead, the Makita charger will never fully charge it and so it blinks. My newer battery charged up in 1/2 an hour but my old-as-the-hills one just keeps on blinking. I removed it and it works. It never really held a charge long though, for years now. It would be nice if the charger had some kind of manual telling you what all those universal symbols(I don't know who's universe they're talking about) mean.

Dec 05, 2010 | Makita Univ Volt Charger

1 Answer

Switch and bateries


Makita makes two 12V Ni-Cad pod batteries: Battery 1222/2.0Ah (PN: 192598-2) and Battery 1220/1.3Ah (PN: 192681-5). Makita's universal charger (PN: DC1804) will charge any Ni-MH or Ni-Cad pod or stick battery from 7.2V to 18V.

Aug 18, 2010 | Makita 12 Volt Cordless Drill/Driver Kit

3 Answers

MAKITA LXT BL1830 18V LITHIUM-ION 3.0AH BATTERY


If the charge count on the batteries is under 300, Makita will replace them. Makita has a known defect in this battery that causes the battery to shut down before it is dead. So as of now they are exchanging ones with low use.

If they are truly defective and makita won't replace, you have to open them, find the dead cell or blown fuse, and replace. Search youtube makita battery for a video on repairing this battery. But once the red and green lights on the charger flash, the the battery can't be charged on a Makita charger -- it's been locked. So use a third party charger.

Apr 18, 2010 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

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