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

4 Answers

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

Hi ! recently I bought an DC18RA μakita charger 110v to use it in my country
at Europe and bought also a converter from 220v to 110v-1600watt 50-60Hz.
When I put the converter in 220v and after the charger on converter I heard
a sound like bzbzbz and a smell like melting plastic all that keeps above 2 or
3 seconds.After that I saw the 10 A fuse of the converter that has been burn.
Next step is that I was opened the charger and take a closer look inside of it and
what I saw it was the mellting plastic capsule around the varistor ...
Also I measure the Ohm between the power outlet and it gives about 41Ohm.
What I can do from this point and after...?If I m going to replace the varistor and
capacitor it will works?
Thank you in advance!!

Posted by on

  • mdd0204 Jan 22, 2009

    hey . after conecting the charger to 220V (by mistaken the 240w to 240v) i blew up the VD101 and replaced it . now after checking it with 1000w adopter its working .

    i saw the pag about how too modefai to 220v but iv got the p/n 630504b4 will it work ?



4 Answers

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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

  • Avi Apr 12, 2010


    sorry for your lose

    In my
    mod page
    it says you might also need to replace the MOSFET

    this is not always necessary as some users reported it works w/o
    replacing it. In addition, did you replaced 1 or 2 capacitors ? I was
    experiencing the same issue and thus wrote 2 capacitors needs to be

    As for the cost, please note that someone is making a profit from you,
    it should not cost that much ;-(

    Hope this helps



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...The adapter who I had buy it is incompatible because it uses an electronic circuit to control the thermic
energy depended on it by ohms device you choose to plug ...So I was lucky that day,because the circuits
beyond the varistor damage further than by voltage did not hapened!
I Changed the varistor with a new one from a dead pc power supply and replaced the capacitor with
a new 400volt 220uf and finally it works better than fine ...!!!So if anyone else want
buying a 110volt charger and make it uses with 220volt he can follow 2 ways:
Buy a simple transformer 220volt - 110volt - NO electronic adapter 220volt- 110volt !!!- it will be a
little big and heavy for external use ...OR do the modifications
as I done following the instructions from this very remarkable site !!!
Thank you..!!!

Posted on Jan 09, 2009

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I purchased a new capacitor, varister, 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 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 disapointment.

Posted on Aug 22, 2009

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See below the submodel of your charger. If the submodel is T than you can't convert it by replacing only the high voltage capasitors. If it S type than the converting should work. The battery itself is ok. Only a little fuse inside is damaged. You can weld a bypass wire on it, else if you can get a new on to replace.

Posted on Aug 22, 2009

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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
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Have fun and good luck

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