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

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How to fix bl1830 battery when flashing red to green in charger

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Have a look at https://youtu.be/vuGIkkYFt5g to solve this problem forever

Posted on Jan 02, 2017

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Posted on Mar 18, 2015

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To fix "bad" Makita batteries that won't charge: Put them in the charger FIRST and then plug the charger in.

Posted on Mar 12, 2015

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Posted on Aug 19, 2013

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Posted on Jan 02, 2017

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SOURCE: Hi, My BL1830 battery is

You need to recycle it in the charger. do you have a button on the charger to do that with? If not try switching chargers.

Posted on Feb 26, 2011

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SOURCE: hi both red and green

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"

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SOURCE: I have makita bl1830 battery

Not true, my second charger works fine with the same batteries

Posted on Nov 19, 2011

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1 Answer

Makita bl1830 charges but stays on static red light


Chargers have been known to lie about what they are indicating. Even though you say the batteries were charged only a hanful of times, they may, in fact, have expired

Apr 03, 2013 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

2 Answers

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


The pcb inside the battery has a microcontroller that monitor the charges and charge cycle. When the cell falls below a certain voltage, it will instruct the charger not to charge and will show with a red-green flashing light. If the battery has been tried 3 times in succession then the pcb will brick itself from the makita charger. So first replace the bad cells. There are 2 solutions at this moment: charge with a 3rd party lithium charger like the imax b6 or replace the pcb with a working one. check out my blog on http://mkbl1830.blogspot.com/

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

1 Answer

Flashing red and green how to fix it


If you have both red and green lights flashing, the charger is reading the battery as defective and will not charge it. It's very rare to be able to fix either a battery or charger, you just have to find out which is bad and replace that one. It's almost always the battery but sometimes chargers do go bad. The only way to test them is to try charging the battery on another charger or try charging different batteries on your charger.

Mar 10, 2012 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

1 Answer

Battery will not charge, charger flashes red and green


If both lights are blinking on the charger after putting the battery on to charge, the battery is no longer chargeable. Most likely it's bad cells inside the battery, the charger is reading the battery as bad and will not charge it. The only fix is to buy a new battery.

Feb 16, 2011 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

1 Answer

Red and green light flashing on 5 of my bl11830 battaries and they will not take a charge


If you put a battery on your charger and both red and green lights flash it is indicating that battery is defective. There may be a short in the battery or they just may be too old and worn out to charge anymore. If the charger is reading the battery as defective it will not charge the battery. The only fix is to buy new batteries.

Jan 20, 2011 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

4 Answers

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...

1 Answer

Red and green light flashes alternatingly with only one of my batterys of my makita 18v li-ion fast charger


unplug charger to let it reset. plug back in and then try again, if it still flashes red/green that would indicate a battery failure. check for warranty replacement.

Aug 26, 2010 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

3 Answers

Battery flashing red and green indicating battery is broken


i have had the same problem with red and green flashing on my makita charger --- cleaned the contacts blew out the fan problem solved

Feb 27, 2010 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

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