20 Most Recent Makita 2 Bl1830 18v Battery,dc18ra Charger Lxt Fr Drill Questions & Answers

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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/
10/24/2022 6:10:48 PM • Makita 2 Bl1830... • Answered on Oct 24, 2022
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My charger is accidentaly connect

Is this a 110Volt version that you plugged into 220v?

There is a ceramic Fuse inside the unit that might be blown. It is the first thing on the circuit board near the power cord connection.

Open the unit up and post a photo of any burned components ?
12/31/2021 1:08:38 AM • Makita 2 Bl1830... • Answered on Dec 31, 2021
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Where can I get a schematic diagram of Makita

go to the makita site and ask for one
4/27/2021 8:38:02 PM • Makita 2 Bl1830... • Answered on Apr 27, 2021
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Drill is not working

first measure of the batterie if its loaden ,only if the brushes are to short replace also anyway the armature and brushes BOTH . it is not good to switch only the carbonbrushes because of a marketing technical design concept because of the heat dissipation that playing tricks insite the armature and it is cheap made by Johnson sometimes the half value compared to other brandnames. Armatures are new designed in a short time 23465970-2oroqqetjko0hjqmfukebeah-4-0.jpgleft the armature of the old but same cdd 18 milwaukee no problems you can change only the brushes and its working again right the same modificated armature marketing technical a new design of this JOHNSON Armature (Johnson is also used in Panasonic powertools bv EY7441 ) it has much more force in the same armature but the heat dissipation plays tricks and if the brushes are to short replace anytime BOTH (the brushes and the armature look at the difference of the turns of the coil front right look the later design more and thiny wire on it more power force but a bad heat dissipation in about 2 or 3 years the brushes are on its end take by heavy work a more powerful tool its better longlasting then this machines Makita has oft a better armature but there are also posibillities in some tools.
12/5/2020 7:37:27 AM • Makita 2 Bl1830... • Answered on Dec 05, 2020
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Can my makita bl1830 battery

This battery has a known design defect that causes premature failure. The battery is still probably good, but the safety circuit n the battery spuriously locks it, due to a bug. Once locked, it won't charge in the Makita charger (flashing red and green lights). Makita knows about this problem but so far is not actively recalling the batteries. Makita will replace the pack if the charge count is under 150 (some people say 300?) regardless of warranty status, but you have to take or mail it to a Makita Service Center -- the dealers won't handle this unless it's in warranty. http://www.makita.com/en-us/Modules/Service/ServiceCenters.aspxIf Makita won't fix it, you can try to repair it. If the red and green lights are flashing, the battery is probably locked and cannot be repaired in a way that will let it be charged in the Makita charger (but it can be charged in off brand chargers). Buy a clone charger on eBay for $60 and try it. If it charges, just use it, no repair needed. Be aware that lithium batteries do lose capacity permanently at a rate of about 20% per year. So, 3-6 years is about the best battery life you can expect - from date of manufacture, so if it sat in the store a while that adds. Makita derates the cells to allow for some shelf life (down from 2400 Mah to 1500 Mah rating). If the battery is weak, and only gives brief usage, you can replace some of or all of the cells in the battery. These are expensive and worth repairing. See this video:http://www.youtube.com/watch?v=Z5taguEdlkYIf just 1 or 2 cells are weak, you can replace them with the same Sony 18650 size 2400 Mah capacity battery, green sleeve. The Sony's are not sold retail, and are hard to find other than from another Makita pack or from some laptop packs. If more are weak, you're better off just replacing all of them with new 18650 2400 Mah (or higher) batteries with tabs. Look for Tenergy or other quality brand. Hope that helps.
12/5/2020 7:35:06 AM • Makita 2 Bl1830... • Answered on Dec 05, 2020
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I have makita bl1830 battery

If both red and green lights are flashing after you put the battery on the charger, the charger is reading the battery as bad or defective and it will not charge the battery. It may be because there is a short in the battery, one of the cells is bad or the battery is just old and won't charge anymore.
12/5/2020 7:34:37 AM • Makita 2 Bl1830... • Answered on Dec 05, 2020
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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.
11/13/2020 4:18:10 PM • Makita 2 Bl1830... • Answered on Nov 13, 2020
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How can I reset chip on my Makita lithium ion 18v battery

Based on experience I can tell you that it is is generally the temperature/cutoff/individual cell monitoring sensor in charger that dont allow the batteries to take a charge. Once the same condition is detected 3 times by the same charger it considers the batteries to be bad and refuses to accept it. I have 2 batteries that wont charge on one charger but works perfectly fine when i charge it on my other Makita charger so basically there is no problem with my batteries.
I would suggest first you check the voltage of your drained battery by a test multimeter. For 18volt battery if it is close to 18volts 1-2 volts less is just fine! Then there is no issue with your battery. Makita chargers are very expensive hitech which is useless in my opinion the lipo chargers (used in rc hobby) example skyrc are better quality cheaper and does a better job and you can easily charge your makita battery with it as well but this is only recommended if you decide not to go with Makita charger any more. Some basic information about multi chargers for Li-ion battery to follow the safety is make sure you use the right connectors with correct polarity. For 18v volts max voltage should not exceed more than 20.50 and the allowable charge current is 2.7amps also ensuring that batteries dont heatup.
9/20/2020 10:55:43 PM • Makita 2 Bl1830... • Answered on Sep 20, 2020
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Black & decker battery

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3/10/2020 7:00:40 AM • Makita 2 Bl1830... • Answered on Mar 10, 2020
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Usb charger from a makita battery

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3/10/2020 6:58:43 AM • Makita 2 Bl1830... • Answered on Mar 10, 2020
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Green light stays on 14.4v black and decker charger

Having same issue with different model charger...skil....
Might be a fuse or something inside charger blown maybe, as I'm reading it could be somewhere online. Not positive on this.
4/21/2019 5:52:45 PM • Makita 2 Bl1830... • Answered on Apr 21, 2019
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Makita DC18RA charger conversion

You can't use the same capacity as it gives you a very
large and expansive capacitor.
I used the max. diameter of 30mm that could go into the PCB of the model I have and it is 470uF 400V
You'll need to replace another capacitor, see my mod page !
This works !

I added another HowTo page for modding the DC18RA from 110V to 220V , you can find it here
all the components details are in it

Have fun and good luck
11/24/2017 8:52:55 PM • Makita 2 Bl1830... • Answered on Nov 24, 2017
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My makita dc18ra charger is blinking green

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9/12/2017 2:16:59 PM • Makita 2 Bl1830... • Answered on Sep 12, 2017
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How to fix bl1830 battery when flashing red to green in charger

Take the liberty to disturb:Our company is a Shenzhen battery factory, engaged in battery industry for 14 years, in 2010 began to set foot in the tool battery pack accessories industry, the MAKITA 18VBL1830 14.4V BL1430 opening 10.8V BL1013 series battery pack, Bosch 12V lithium battery pack and charger.Milwaukee 12V M12 1.5A 3.0A M12 M18 charger etc..Manufacturers supply quantity of large amount of pricewelcome to 86+15014034610 QQ 47018380 Mr. Miao
1/2/2017 6:36:31 PM • Makita 2 Bl1830... • Answered on Jan 02, 2017
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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.
11/26/2015 9:49:10 AM • Makita 2 Bl1830... • Answered on Nov 26, 2015
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