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

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

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5 Answers

Repair Ahjoshe

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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.

Posted on Sep 13, 2010

Testimonial: "thank you verry helpfull"

  • kingzinoz1 Dec 06, 2010

    I was told that by placing the faulty battery in the freezer,this might help get rid of the fault.Is this true?

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Anonymous

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Mine is doing the same but if i used my other charger my batteries charge fine

Posted on Nov 19, 2011

  • paul mc
    paul mc Dec 09, 2014

    bingo! thats my situation,also.....and I do not need some flunky to instruct me to go to the service centre.....D'uh! lol

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John Thomson

John Thomson

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I found that there is a thermister in the battery.
Then placed my battery on a radiator for while, then
it charged. Batteries had been in a cold garage.

Posted on Nov 13, 2020

mirzasaj

mirzasaj

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Instead of throwing away your tools you can connect it with 18v adapter to make it work thats the last option that i will ever choose.

Posted on Aug 23, 2014

  • paul mc
    paul mc Dec 09, 2014

    kind of not an option,when your 30 ft. up,installing on a building,thats why I need cord-LESS

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Anonymous

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I have( 4) 3 amp 18 volt lithium ion batteries for makita tools that will not charge. the charger flashes red and green at me, at 100 $ a piece , i might as well throw the battery saw, impact and cordless in the F' in trash can!! oh and its been just over a year since i bought them

Posted on Dec 03, 2010

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Red light flashing will not charge battery have left over night with no result
Sometimes, this is a result of a battery that is too cold (below freezing-warm it up). Sometimes it can be too hot (discharged under heavy stress-let it cool down). Sometimes there may be insufficient voltage, I have had problems in older houses, get closer to the electrical panel to plug in, or you may have to wait until you get home. Red flashing may mean https://www.youtube.com/watch?v=8rZqYmPsZycthe charger or battery is to hot and must cool down before it will charge. The charger will not charge a battery if the lights are flashing. Solid Red light means it is charging and solid green light means it is charged. Plug the charger in first before putting the battery on the charger. If the charger has been dropped or hit the floor the coil inside could have broke loose and damaged the charger requiring it to be replaced. Below is an unconventional way to charge the battery if the charger is no good. BE CAREFUL
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When put on charge the green and red light flash
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