Converting a DeWalt 110v battery charger to 240v for $1.75

I bought a DeWalt drill and impact driver set from a recent trip to the US. The problem is that in Australia we have 240v electricity so I swapped a capacitor to make the charger work here in Australia.
If you want to do this yourself I accept no liability whatsoever. Do so at your own risk!

[@Tieigo0]

Things to be added mate /!MAKE ! SURE!!\ You use the same (uF) values and only replace the main cap's voltage (Example, 100uF 200v to a 100uF 400v) Replace the MOV's (again, same reference to 250v) Replace the Polyester capacitor (Same nF/uF to 275v) Replace the FUSE (Same Amps but 250v) Done this after converting a Yamaha XS205 Sega Saturn PSU Heat's not a concern, but i do recomend adding a Heatsink with Artic Silver (or any other) thermal paste. Also you won't burn down your house if a power surge goes through your device.

[@MohammadAbdeltawab]

for all the guys who ask about how is it that simple, well, this charger uses a pwm power supply that works anywhere between 85 and 240 volts, the circuit is universal, but they just installed a lower voltage capacitor. so when on 220, the rectified dc will be around 330 volts, the pwm.circuit will work according to the fedback setpoint from the output of the puls transformer , and the battery volt will not increase. one more thing, many mentioned a varistor, the varistor is only for protection againest a higher voltage, if your charges comes with a varistor you will need to change it with one that withstands abit higher than 240 to protect your charger against higher voltage. but the varistor itseld does not help in the conversion itself. well done Bruno.

[@adeeep]

انت معلم ..... في وجودك ماحد يتكلم .

[@6006HDAD]

Mohammad Abdeltawab منور يا باشمهندس محمد طيب ما نعمل حلقة عالموضوع ده لانه بصراحة عندي حوالي 10 شواحن كلها 110v نظام smps هل بس المفروض تغيير المكثف الرئيسي و الفايرستور و ايه الفكره بأن فولت الخرج بيفضل ثابت ما يتغير يا ريت لو حضرتك تعمل حلقة عليه و شكرا

[@libenasukro]

Hi, Mohammad. Does this mean that if I make the changes you outlined above in my 110 v Dewalt, provided I find the same circuitry, that if I take it back to the US, I could use it on 110v again without any changes? In other words, are you saying that Dewalt screwed all of us who might need multivoltage capability for the cost of a few pennies for higher rated parts???

[@alejandroleon3170]

Yes, that´s it. At today, I have converted 2 chargers with only capacitor replacement, they are working ok daily.

[@Mido0Rady]

hi, i have a Nintendo adapter(110v) which someone plugged it to the outlet (220v) so i opened it to find that the main capacitor (200v) has exploded so i changed it with 400v one and nothing happened, so i went through troubleshooting and found that one of the output schottky diodes was faulty , after changing that it worked perfectly, thank u. شكرا مهندسنا الفاضل لانك اعطيتني الثقة والمعلومة الأكيدة

[@namrur2]

I have a serious doubt that changing the capacitor only is enough for this conversion. Actually, in almost every power tool charger conversion I've done until today, I had to change the Thermistor. Other video here in youtube shows even the need to add a Varistor. Even if your charger works, it doesn't means it sends the right voltage or it won't burn on the long run, as well as damaging the batteries. It just have no sense to change the Capacitor alone.

[@pablopeu]

Another happy conversion from Buenos Aires, Argentina. Replaced the capacitor for a 47ufx450v (stock was 68ufx200) and added extra heatsink. Thanks!!!

[@pablopeu]

Follow up, after charging one of the packs (I bought the same combo as you) the transformer and heatsink is very hot, yours run hot too?

[@banarcus]

Pablo Untroib Yes mine does get hot too. I'm going to do a little more research into it. Thanks

[@pablopeu]

Mine looks exactly like yours: i.imgur.com/C8gkgxq.jpg

[@PabloMacchi74]

Hola Pablo, tengo el mismo tema que vos lo compre en usa y necesito convertirlo. ¿te funciona bien el cambio de capacitor?¿le hiciste algo mas? abrazo!!

[@supermanreturns3659]

you should replace the varistors too and modify the input polyester capacitor. You have twice the current on that rectifiers

[@crashtestcal6484]

Kogan’s got tiny little step-down transformers with twin 110v outlets for $20.

[@banarcus]

Wow that's a great deal. They didn't have these when I made this video.

[@crashtestcal6484]

They work great too. They run quiet and cool.

[@kataeb10452]

Very Helpfull and useful and it worked 100% here with 220v after the modification... thanks for the video 👍it easied my life....God Bless

[@roylauzon6661]

Old video, new question :) - is it possible to use 400V and 100 micro farad capacitor? (instead of the 450v and 10 micro farad in the video)

[@MT-gf9pg]

I've done what you said but after the fist battery charge capacitor heated up and failed.

[@moiskey]

in short, it is just the capacitor at the highest voltage. It would be good to know if the author of the video still works the charger

[@banarcus]

Hi Bruno. I changed the capacitor and added a heatsink to a transistor. Otherwise stock standard.

[@banarcus]

Fry no mate. I haven't removed any links.

[@juanmurillo9150]

Eyebrows Gone l

[@kaizen7852]

HII BROTHER bought 120v charger put it to 220v without noticing and then trhe capacitor blowed !! stock capacitor 100uf 200v now i changed it to 100uf 450v and a transformer from 220v to 120 to give the charger the voltage it wants i put the baterry the red light blinks couple of times and then it dies !! is there anything i can do about it ?

[@fasousa4798]

If you have a stepdown transformer where to plug the charger why did you change the capacitor? For this to worl at least the inner transformer needs to be changed it is the transformer that brings the voltage down to 20v not the capacitor.

[@kaizen7852]

burned the charger ! bought new one europe voltage! hope will not happen again loll!! thanks Wild ....

[@syowikrw622]

I have DW9116 so how to convert 120v to 220v

[@Illutorium]

In a "Impulse PCB's Power Supplies" as this it's will be a Basically change of Capacitors from 200V (120V) to 400V (230V) and even Repairning Capacitors - in a Traditionally of a "Transformer only": It's doesn't possible.

[@meal8641]

Hi Mark I have DC9310 the capacitor is 560uf 200v what do you recommend as a replacement ? 220uf 450v / 150uf 400v / 100uf 450v or something else? thanks

[@rjsracingdotnet]

Worked for me in Thailand. I installed a 68uf 400v .

[@banarcus]

j s nice work mate!

[@avitanmishel]

a 68uf 400v

[@leminhnhut6153]

can you help about dewalt charge DCB 101 from 110 to 220, thank you

[@ModulArt22]

hello!!! i have the same problem, my folks bought one on th USA and it's a 120v 0,7A, could you tell me wich parts to replace?? Thanks!!

[@ross1116]

All you need is a 2amp 2/1 step down transformer.

[@BiP00]

Thanks mate!

[@djaksdklssd]

This actually works. I have only changed capacitor to 400v. Thank you

[@banarcus]

Thanks Giorgi

[@rafi1082]

what ufr did you use?

[@toargames]

At what voltage does this charger stop charging with this mod? Mine goes past 20.5V.

[@thisisretropete]

I have also changed the power lead to a long uk one which works great

[@user-rn8jc4lm9o]

hey, can you please help me too? i need to convert

[@MrOrangeman18]

thats not a varister, its a 2a fuse

[@kingoftheput]

So,only thing you have changed is a capacitor??? I see,this video is four years old. Is it still working??

[@gf975]

Does anyone know how to measure the output voltage of the charger with a multimeter? I would like to measure the stability of the voltage.

[@AdminTuber]

Thanks ...I see you have only be using it for a short period .. the voltage on the capacitor is now double DC . I could not find the schematics anywhere ... it may fry the board after a while .. Hope your battery wont blow . I could only find a Russian video with some more components changed but nothing that made any sense ...

[@banarcus]

AdminTuber I used a site where they modded a Ryobi charger. The transistor mosfet got hot so I made a heatsink for it with some cpu paste.

[@banarcus]

Yeah Fry, I'm going to revisit this soon. Haven't had any problems with this but will check it out. Thanks

[@fun_ghoul]

@Fry I can confirm that a DeWalt charger runs at ~170V when plugged into 120V AC. I learned that one when I caught the business end of that fucking capacitor...ouf!

[@thisisretropete]

Hey just wanted to thank you for this video without this I would have just had an extra charger 🔌 from American but I needed a 240v for uk. Doing my 2nd one and was wondering how to make it a fast charger? Is it possible to convert the standard to a fast charger and even adding a usb charger maybe.

[@boutrosboutrosboutrosboutros]

Great video. I wonder if it will work OK if you tried to use it on 110-120v after conversion? I am brining my Dewalt tools to Thailand next month, and was looking into this. in 2018 they have step down transformers for sale online for about $12, so it is pretty cheap to keep your charger original, and use it for both voltages

[@banarcus]

beyackabiotch I'd say probably not. But for $12 it's not worth your while anyway.

[@larryb6886]

what step down did you buy and from where? tx

[@rogersbonettmb]

Hi. Thanks for this video. I have a Bluetooth speaker which is the Sony SRS XB 30 (it's a rechargeable battery powered device) and I want to convert it into AC power supply. Can you please tell me what's the volts and amperes that the adapter needs to supplies the sound device very well?

[@TorMelkson]

Dewalt in general is overpriced. At that cost why are there chargers not auto switching between 120/240V.

[@fun_ghoul]

You answered your own question, LOL.

[@peppysin1459]

I wonder how long it took to charge the battery. But I guess normal without blowing up? I have the exact same set of drills I want to bring back home. What was that part called again that was changed out?

[@raymorton7833]

CHEERS DID SAME NOW YOU HAVE HELPED WITH THE CONVERSION GO AUSSIES

[@Cbzlanz]

@Eyebrows Gone hi mate any update on the drill bit used to remove the screws behind the charger

[@melindakiss2083]

Can you please the number the parts change..resistor and more..can you please

[@EL90291]

Don’t you need to also change the fuse ? “half the current rating as the old fuse.”

[@whatyousaidbud]

American plugs don't have fuses I believe.

[@thepaddonman]

hey man, i am trying to work out how you got to knowing to use a 10uF capacitor from the original 68UF, i am trying to do a different charger so would be cool to know how you know which one to get. cheers

[@banarcus]

nzmopar1992 I cheated a bit and Googled a site where a bloke converted his makita charger. Very similar.

[@samsun01]

Well done Mate.

[@786otto]

I would not take a chance to convert it, 200 W step down transformer cost only $10 doll.

[@ross1116]

But there are many ways to perform the art of electronics.

[@memoo20110]

The only this that you changed capacitor?

[@karzankerkuki4935]

I want this answer !

[@CordlessToolsRawat]

Mohammed Al Shulayan sir I have dcb113 Dewalt charger so I can change the capicetor 440 v. And 220v not changing? So what I do?

[@FuriousHondaBoy]

Is it still work ? Have same situation here, for now don't see varistor what is ok, N-mosfet can handle up to 600V and 10A same ok only heatsink bigger upgrade and capacitor to handle double voltage is it correct ?

[@banarcus]

FuriousHondaBoy yes that is correct mate. This mod is still going great. Just a larger capacitor and an added heatsink for the mosfet transistor.

[@FuriousHondaBoy]

Thanks man, it's work :)

[@aaaruelas396]

Cheers! Thanks for the tip!

[@CitizenAtmaja]

I hope I've seen this video before I plugged mine on. Now the charger is completely fried and Cant seem to find any replacement here. Any idea on how to fix the fried charger?

[@armsr01m]

Maybe, the capacitor burst out. First of all, Check out those all part on PCB with naked eyes and use multimeter. It's simple. Just replace those parts that were burnt. 1.Capacitor 2. Fuse 3. MosFET 4. Diode. These 4 things are critical.

[@fun_ghoul]

Probably not much help to you now, but for anyone else...the thing that buddy didn't know what it was in this video? The little brown rectangle box? It's actually a fuse. Just bypass it. Can't guarantee this is the problem, but it's the FIRST thing to check for sure. Cheers.

[@solomonalozie7501]

please kindly confirm if all I need to replace is the capacitor ?

[@zamzamoil1517]

can you make any dewalt charger to work like DCB119 vehicle charger?

[@ross1116]

What im curious of is what is the exact voltage being supplied to the battery. Is it the intended 21v?

[@fun_ghoul]

Lithium ion batteries aren't (properly) charged at a constant voltage. You don't have to read this whole page, just look at the graph. You'll get it. batteryuniversity.com/learn/article/charging_lithium_ion_batteries

[@skittleseer1]

The MOSFET has a drain-source voltage of 600 volts and a RMS isolation voltage of 2000 volts - no worries on that component. The capacitor is used to filter out ripple voltage from a bridge rectifier (converts the incoming AC voltage to DC voltage), if anyone is curious. The reason why the capacitor needs to be rated for 400 volts or greater is because the DC voltage is way too high. Consider that your country uses AC voltage ranging from 220vac to 250vac. Remember, that is the RMS voltage. Multiply the RMS voltage by the square root of 2 (1.414). Once the AC voltage is rectified, your DC voltage will be 311-353.5 volts. Now, put that voltage through an electrolytic capacitor rated for 200 volts and...pop!

[@rafi1082]

hey is there a need for a minimal ufr? is 10 good enough of i should use 68?

[@yoEli35]

hi- no need to add other components? just replace the capacitor to 400V ?

[@EL90291]

2:20 I think it’s a Fuse

[@AmirBalak]

Good job , i hope u do something for dcb188 charger 2

[@bradevans7936]

What did you use to open it up. I have tried T15 and others. mine is broken and it's out of warranty so want to open it up to see what is wrong.

[@fun_ghoul]

You can sometimes get lucky with a "regular" T15 Torx, but the actual screw is a ST15 security Torx (with the nub in the middle). Might as well buy the set, especially if you intend to play with DeWalt battery packs too (they take a ST10 bit).

[@garymcfarlan4840]

So all you need to do is change the one cap to 400 then and use the plug adaptor?

[@banarcus]

I also used a heatsink after doing this video.

[@mohamedamjath7986]

I buy one compound kit because that one 110 voltage I need to 220 voltage in my country which parts I need to replace in charger please reply

[@mohamedamjath7986]

240v

[@joeyarcade6088]

do you think that the Ridgid type charger would be similar ? i am moving to Philippines need 220v

[@banarcus]

It would be similar no doubt, however every manufacturer has their own way of doing things.

[@Dr.D.Thomas]

Does this modification allow charger to work on 50Hz instead of 60Hz ?

[@AnishKaranPhotography]

Yes it will work with both 50Hz and 60Hz. When using 50Hz, the charge rate will be reduced by the ratio (50/60).

[@Jilanisky]

Dont forget to put the capacitor correctly.

[@Desi_d7j]

Hi , i bought a laser with battery charger from Amazon but my apprentice put the battercharger to 235 volt without reading manual . Smoke comes out -- any one can help me to fix this problem .

[@banarcus]

Sorry meechu, I wouldn't know.

[@NewsBroadcasting]

would it still work at 110v ?

[@BatiJuampe]

If I already burned mine because I plugged the 120v to 220v... do you know if I can save the charger by replacing some component? do you know what part burns?

[@lekkalavikramreddy7720]

Hi

[@lekkalavikramreddy7720]

Same problem as facing at now I am

[@rafagorgoris]

@@lekkalavikramreddy7720 Heelo, I have the same thing, do you recover the charger?, What component do you replace?. Regards!

[@BABATECHNICALKNOWLEDGE]

Good video bro like share & subscribe my channel 🙏

[@perwezabbas-tv6094]

Buy just a simple converter to convert 110V to 220V. That's it....No need for such a hassle.

[@alancotter2078]

Hey just seen this video I need help but the other way around I'm using 220 and moving to the us shortly how can I do this

[@djamelsibachir1417]

Hi mate greeting from 🇩🇿 I can swap dw9116 DeWalt charger Dcb107 all us 110V.

[@robertdekarz2808]

It works thank you

[@AdminTuber]

so did u only change the capacitor?

[@banarcus]

AdminTuber I later added a heatsink to a mosfet to draw away the heat.

[@Cbzlanz]

@@banarcus so is the charger still doing good , am from INDIA which uses 240v so can i go for this capacitor change and heatsink to mosfet

[@banarcus]

@@Cbzlanz yes no problems at all. Charges fine after doing this video time after time.

[@Cbzlanz]

@@banarcus what about the heating issue , charger hets heated you were saying , after heat sink addition is it solved, any other new modifications

[@banarcus]

@@Cbzlanz hi mate the internals do get warm. I wouldn't say hot so it will melt everything around it though. My case isn't deformed and after doing this mod and charging the batteries over and over, I can say I've had nil issues whatsoever.

[@CirrusCopernicus]

Hey Eyebrows, mine is a DCB095, also rated at 120. But this thing comes with a 400v 22uF capacitor. Do you think it’s enough? Should I swap it or give a go?

[@banarcus]

Keep it and heatsink the transistor.

[@Lakason]

is it still working

[@banarcus]

Lakason yeah mate. Working great!

[@washawkwilson8274]

Ahh ok see in comments need better heatsink for MOSFET and the bigger isolation capacitor, cool.

[@coloradowilderness3139]

Eyebrows Gone Is it still working ? Thanks ahead.

[@banarcus]

colorado wilderness hi mate, this going better than ever. The batteries charge normally and nothing is hit to touch. Thumbs up!

[@royrlgd]

SO, ORDER ONE FROM AMAZON USA AND IN MY COUNTRY ITS 220V. YOUR CONVERTION STILL WORKS?

[@fun_ghoul]

For sure, yes! Shalom.

[@davidkleinthefamousp]

I shipped a 220 volt to 20 li-ion to my son in Beit Shemesh. It was about $45 w shipping. Others were about $65

[@yoEli35]

hi - did you try to replace the capacitor only? did you have to remove the jumper also?

[@scherlockholmes4761]

I'll do that today, let me buy the capacitor. I'll be gladly to inform all of you about it. I have a Dewalt Charger from USA 110 V DCB107

[@djamelsibachir1417]

Hi Did you replace the capacitor only? Did it work?

[@hotenenko]

What a funny accent. Unoited stoits.

[@fun_ghoul]

People might say the same of you, Alex. "Kee-YEEV", LOL.

[@matthewpasco9772]

Can you just buy a 220v charger I have many dewalt tools I want to bring back

[@banarcus]

Matthew Pasco you would for sure. I just wanted to save a few dollars.

[@matthewpasco9772]

Eyebrows Gone ok cool thanks for that might try it on the 110 chargers first :)

[@ALL_OUT_OF_BUBBLEGUM]

I need to do the opposite of this... Got a sweet deal on a Quansheng UV-5R Plus but they neglected to tell me it had a UK plug on the charging cradle. (Do they use that in China too?) I have a 110v plug from an old Baofeng charger and since it's a major step down in voltage, this should be fairly easy, no? Great (simple) video. And thanks for not shitting on the US of A. Technically, we deserve it lately because the World is going to hell and "American" leaders and special interests seem to be the engineers and conductors.

[@arek431]

somebody know number mosfet ?

[@dannyf4995]

???????????? Don't do this!

[@memoo20110]

Danny F why?

[@dannyf4995]

Because the difference between the chargers (110/220) is not only the condenser.

[@sanjalon]

Hello, thanks for the video. Anyone might be able to point me in a direction to help me convert my old (2006) Dewalt DW9116 charger from 110 to 220v?

[@djamelsibachir1417]

Hi mate Did you get any help? I have the same problem.

[@andersonbruno0201]

only change the capacitor?

[@banarcus]

Anderson Bruno that and added a heatsink to a mosfet/transistor

[@andersonbruno0201]

done its working thanks

[@100redpillcolourblind5]

hope someone can help before I go down this path want to be sure I only have to change the capacitor I have same model charger dcb107 just got it from ebay USA didnt even think about the 110v issue? stupid me. Found the capacitor on ebay $2 450v / 100 uF. I live in Thailand so sending the stuff back means more time money shipping import duty etc. So dose this conversion really work? is it this simple? Is it still working? Any tips Im not an expert dose the capacitor go a certain way? Are the terminals easy to see and solder? would appreciate Any advice . will 450v/ 100 uF be ok? cant find the 10uF? Thanks ant

[@100redpillcolourblind5]

I saw the Russian video too, different model charger. He added two extra components verisistor ? and heat resistor looked a bit doggy to me but it worked older dewalt model dcb 112 ? i think? Hope this isnt a stupid question but what's a heatsink? you mentioned adding it to somthing? massive ask but anyc chance of an updated video of exactly how you removed the circuit board and soldered the capasitor. best regards ant. Just dont want to F.....k it up bro.

[@100redpillcolourblind5]

wats a mosfet/transistor....you added a heatsink too? whats a heatsink? would appreciate any heads up....