Question about Makita 2 Bl1830 18v Battery,dc18ra Charger Lxt Fr Drill

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Hi, My Makita DC18RA won't charge anything it just flashers the red and green light simultaneously it is not the batteries because I can charge them fine using anther charger. What is wrong with the charger??

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  • rios_jj
    rios_jj Sep 12, 2012

    what charger are you using to charge these, now?

  • rios_jj
    rios_jj Sep 12, 2012

    What Charger are you using to charge these, now?

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None of these answers help. you cant return old chargers to the store, and the poster said his battery charged on a different charger. i have the same problem with 2 makita battery chargers and need to know if there is a part inside the charger that can be replaced.

Posted on Aug 25, 2012

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SOURCE: where can I get a schematic diagram of Makita

go to the makita site and ask for one

Posted on Oct 16, 2009

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SOURCE: Makita DC18RA Makstar Li ion Charger three lights

Alternate Red and Green flashing means bad battery. Buy a new one, or take it to a Makita Service center for replacement if it's under warranty.

Normally the yellow light indicates hot battery, but it could also mean dirty battery contacts so the heat sensor can't be read, or that the fan is clogged with dust and unable to cool the battery. The manual says let the battery cool and try again. If the yellow still flashes, it's contacts or the fan.

Read the manual online at:
http://www.makita.ca/data/upload/accessorypbim/417_im_english.pdf

Posted on Nov 04, 2011

  • 165 Answers

SOURCE: Brand new Makita DC18RA charger wont charge the batteries.

Return to store for replacement.

Posted on Feb 27, 2010

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My dc18ra makita battery charger flashes red and green lights no matter how many bateries i try


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Mar 17, 2012 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

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Makita DC18RA Makstar Li ion Charger three lights


Alternate Red and Green flashing means bad battery. Buy a new one, or take it to a Makita Service center for replacement if it's under warranty.

Normally the yellow light indicates hot battery, but it could also mean dirty battery contacts so the heat sensor can't be read, or that the fan is clogged with dust and unable to cool the battery. The manual says let the battery cool and try again. If the yellow still flashes, it's contacts or the fan.

Read the manual online at:
http://www.makita.ca/data/upload/accessorypbim/417_im_english.pdf

Oct 28, 2011 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

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Hi both red and green lights are flashing and it wont charge battery bl1830 lith ion


If both lights are flashing it means the battery is defective so it won't charge it. By defective it could mean the battery is just worn out or there may be a short in the battery. If the battery is under warranty you can get it replaced at a Makita Service Center, if not you have to buy a new battery.

Sep 13, 2010 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

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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.

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When put on charge the green and red light flash


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Jan 19, 2010 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

1 Answer

Battery charger


Sounds like a bad battery. If so, be sure to recycle it. You can carry them to Lowes or Home Depot and drop in the recycle bin, usually by the front returns desk.

Jan 26, 2009 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

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