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

3 Answers

Makita DC18RA charger conversion

Hi magua73,
I have read your messages regarding conversion of the DC18RA charger. I have the same problem, but my DC18RA charger is slightly different: the capacitor (condensator) is 1000uF, 200V. Do I need to replace it with one that has larger capacity, or just with one that is for 380V and above, with the same capacity? Of course I would also change the varistor with one rated for higher voltage.
Regards
Josip

Posted by on

  • Zuluratnik Jan 10, 2009

    Thank you very much for your effort. I will reward you for this. Where did you found the capacitor? It's very hard to find one with such characteristics. The smallest one I found has diameter 35mm.

  • magua73 May 11, 2010

    Hei Zuluratnik!

    You MUST change the capacitor for one that takes at least 380v, in fact I would even say a 450v would be one safe range in case of electrical spikes. The capasitator I used was 140uF and it was ok, so it seems it is not so important as the voltage in this case.

    I hope it help.

    Regards
    RH


×

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.

    Sniper:

    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.

  • Expert
  • 66 Answers

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

Posted on Jan 10, 2009

  • Avi Jan 10, 2009

    Hey, I found it in a local electronics supply store.

    35mm will NOT fit this PCB because of the metal heatsink and other nearby components.
    The one I used 470uF-400V is 30.6mm diameter and I had to clean
    some of the white adhesive Makita spread in this area in order to make room
    for this large capacitor.
    This capacitor is 30.6mm in diameter and is much longer ~50mm than the 35mm diameter type.
    There is no problem with components height in this area.

    Here is a sample I found on eBay

    If you want to go the safe way, you can use a lower uF value than 470uF and
    you'll get a smaller in diameter capacitor. I didn't test this but reading other modding
    pages it is said to be working as well.

    Hope this helps
    Avi


  • Avi Mar 18, 2010

    Sorry to read that plimbob71
    If you reply to my mod, than
    does your PS model is: DC18RA T , P/N:
    630516A7 ?
    My mod is clearly stating it is ONLY for this model as there are few on the market.
    My page also recommend to replace 2 capacitors (not 1) and the MOSFET. You should check those as well.
    and $40 for the components ? someone is making a lot of profit from you.



×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

I have had a problem with replacing the large capacitor as I replaced it with a 200v unknowingly, the original was 250v! It went pop and smoke came puring out, it was a $15 cap that lasted about 1.5secs. I believe if you replace the large cap with a 400-450v 180uf-380uf and the varistor with one that will handle over 250v or something and make sure ur mosfet won't overheat, you should be fine... But I can't say just yet as I can't get another cap until after the weekend.

Posted on Aug 14, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

I purchased a new capacitor, varistor, fuse and a new plug and carefully soldered in the new parts. I connected a battery and with a long extension lead stood back. As soon as i flicked the switch on a tiny puff of smoke and a small pop came from the charger. I have spent hours trying to work out what went wrong. $40 in parts and it destroyed a perfectly new battery. Big disappointment.

Posted on Aug 22, 2009

4 Suggested Answers

  • 66 Answers

SOURCE: MAKITACHARGER 220v to 110v problem after using of right converter

hi all,
I added another HowTo page for moding the DC18RA from 110V to 220V , you can find it here
Have fun and good luck

Posted on Jan 10, 2009

SRF518
  • 232 Answers

SOURCE: where can I get a schematic diagram of Makita

go to the makita site and ask for one

Posted on Oct 16, 2009

  • 165 Answers

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

Return to store for replacement.

Posted on Feb 27, 2010

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

DC18RA battery charger i.c number


call Makita...they've always been real good about warranty'ing their products... (they'll probably just send you a new one on your word?!) it's definitely doesn't hurt to ask...?!

May 08, 2014 | Makita DC18RA Rapid Battery Charger For...

1 Answer

DC18RA battery loader is not working anymore.


Makita chargers are designed to check a battery before charging them. If both the red and green lights are flashing after you put a battery on the charger, it is reading a problem with the battery and will not charge it. It could be a bad cell, a problem with the circuit board, etc. but as long as it reads the problem it will not charge the battery.

Jan 04, 2013 | Makita DC18RA Rapid Battery Charger For...

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

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...

1 Answer

Where can I get a schematic diagram of Makita DC18RA Charger?


my battery charger ic broken for a.c power flechuvation so iam not seeing that i.c number so i will ask you model DC18RA

Feb 14, 2011 | Makita DC18RA Rapid Battery Charger For...

1 Answer

I bougth reciprocating saw, model BJR 182Z and circle saw, BSS611Z while I was in the U.S.A.These tools use the 18 volt LXT Lithium-Ion battery BL 1830. I also bought this battery.However I am going to use...


Why can't you buy the 230 volt DC18RA charger in europe (amazon.europe country) and use it. I had the same issue yet i burned out the fuse in the 110 volt DC18RA charger because i plugged it into the wall just using an adaptor. Lesson learned. Therefore, my first solution was that i bought a converter from 220V-to 110 Volt. This showed me that my charger was done. So instead of getting another 110 volt charger sent here to Europe from Canada, I returned the converter and have on order a 230 volt input DC18RA charger from amazon.de which has the same 7.2-18V output. I have been told this will work yet the fear, and I don't know why, is that it will burn out the batteries in a year or so. It is difficult getting specific information from Makita, but I hope it all works out. Best of Luck for you

Dec 16, 2010 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

1 Answer

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...


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.

May 16, 2010 | Makita 2 Bl1830 18v Battery,dc18ra Charger...

Not finding what you are looking for?
Makita 2 Bl1830 18v Battery,dc18ra Charger Lxt Fr Drill Logo

Related Topics:

1,479 people viewed this question

Ask a Question

Usually answered in minutes!

Top Makita Drills Experts

John Trevino

Level 3 Expert

1383 Answers

EugenesDIYDen
EugenesDIYDen

Level 3 Expert

479 Answers

Mike

Level 3 Expert

4336 Answers

Are you a Makita Drill Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...