Question about Dewalt 7.2-18.0 Volt One Hour Charger

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I want to change 120v charger to run on 240v.What components have to be changed?

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  • Graeme Apr 12, 2012

    Can be done for the DW9116.

    Has been done.

    Read the post by panariga here:
    http://dewaltownersgroup.com/index.php?t...

    you can buy appropriate charger for 220v at ebay or from the local dealer.

    P.S. I have dc9310 charger. It is desined for 120v AC.
    It seems that most components in charger are universal. Only one capacitor was rated for 200v. And this capacitor heating very fast.
    I changed capacitor from 200v to 350v. And it is work fine in Ukraine (220v AC).


    If you are using in 240V (as opposed to panariga where he is in a 220V country), you are better off using a 400V 100uf capacitor and not the 350V he used.

    Also, a complete circuit diagram of a 220-240V DW9116 can be found here:
    http://obrazki.elektroda.net/57_12883870...

    Note: If you can't solder you don't want to try this, as it required desoldering a component and soldering in a new one. Also, if you do not know how to select and buy an appropriate replacement capacitor this is not for you. And the modified charger my not be legal where you live. And if you don't do a good job, it may be dangerous to use.

    Remember also AC voltage can kill. Take precautions. Do any of this at your own risk!

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  • Master
  • 2,019 Answers

Can't be done.
Even if there was a safe way to put power to the neutral wire, the fact is you would still be running more than twice the power through it, and it would blow up. It would get much hotter.
Nor would the charger put out 7.2 to 18 volts any more.
It would put out over twice that.
The only way it could be done is if the unit was intended to also be run on 240 volts, and had a European selection setting switch.

Posted on Mar 12, 2011

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Posted on Jan 02, 2017

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SOURCE: change 120v chager to run on 240v

all you needs is a step tranformer from 110v to 220v ac

Posted on May 28, 2008

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What to do if a 120v machine gets plugged in to a 240v outlet?


Just buy a new one. Every electrical component has been stressed to the point of destruction. Any fuse if there is one is there to blow in the event of a dead short, but you applied double voltage to every component.

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Hi. I have a charger for 18v Dewalt Li-Ion (dc9130 120v 60hz) and I'd like to find a circuit diagram so I might be able to convert it to use with 240v 50hz. So I probably need the diagram for the 240v one...


most chargers will fuction on 240/50 hz, look closely at the writing on the charger, it may say. I have laptop chargers and have used the overseas with no problem, that being said, you might try contacting dewalt and asking them if you can do it. Like I said, it probably already will work without doing anything. i have seen some devices (amplifiers mostly) that have a switch on the bakc to switch voltage, ( I don't recall ever seeing a switch to change line frequecny though), hope this helps a bit

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1 Answer

Can you put a aussie 240 volt plug on an US battery charger


Look at the specs on the label, if it says that the charger is capable of taking a 240v input then you can change the plug and use it at 240v with no problem. If it says 120v then you won't be able to, you'll want to use a transformer or some other 240 to 120v supply.

lp

Dec 26, 2010 | Dewalt 7.2-18.0 Volt One Hour Charger

1 Answer

How to wire a intermatic timer T104 240 v to a 120v?


T104 is 240volt timer.
Timer has terminals A 1 2 3 4
T-104 clock motor must receive 240Volts to operate.
Clock motor wires are white-colored and can be seen connected to terminals 1 and 3.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
http://waterheatertimer.org/images/Back-of-WH40-2b.jpg

There are two work-arounds for using T104 for 120V.

1) Diagram 1 showing how to change wiring:
http://waterheatertimer.org/images/T-104-control-120V-Load-500.jpg
Move 240V clock motor wires to terminal 1 and A.
Connect 240V Hot leads to terminals 1 and A. This will power the 240V clock motor
Hot wire going to 120V load connects to terminal 2. This wire will be turned on each time timer turns on, and 120Volts will power the 120V load.
To complete 120V circuit, neutral wire that comes from neutral busbar in breaker box connects to 120V load.

To control additional 120Volt circuit, run jumper wire from terminal 1 to terminal 3.
Connect Hot to second load to terminal 4.

2) Second method is to change T104 timer into T103 timer:
http://waterheatertimer.org/images/T-104-control-120V-Load-2-5.jpg
Replace T104 240V clock with identical 120V clock motor from Grainger
http://www.grainger.com/Grainger/INTERMATIC-Time-Clock-Motor-1PNK1?Pid=search
Neutral wires connect to terminal A.
Hot wire from Breaker connects to terminal 1
Hot going to Load connects to terminal 2

To control additional 120Volt circuit, run jumper wire from terminal 1 to terminal 3.
Connect Hot to second load to terminal 4.

Dec 26, 2010 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

Dear sir I am trying to connect Model Et104, my questions are as follows: I am having a problem connectiing your system. Both power source 110v and 220 volts have to connect to your system???? If my...


Fixya answers questions about other people's products.

I specialize in timers.
Intermatic is changing their product line
I suggest you download the manual:
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/et104c%20-%20english.ashx

The manual is generic across all the ET100 series products.
The manual does not describe individual models.
The instructions are on the timer door.
Look for the clock voltage.
The clock voltage tells the story of your timer model.

NOW lets say your clock voltage is 120V.
I believe you suspect the clock voltage is 120V.

To make this timer work with your 240V cable, there are 2 methods

Method 1) To meet code, run a white wire from nearby 120V receptacle.
This is a Neutral wire.
Connect the Neutral to terminal 1
Connect one leg from the 240V cable (1 of the 240V wires) to terminal 2 and that will complete the 120V circuit and the clock will run.
This is true because each leg of a 240V circuit is actually 120V, and only when the two legs are combined do they produce the 240V circuit

Method 2) Connect bare ground wire to terminal 1 and to grounding screw
The bare wire connects to the Neutral busbar in the main breaker box, so it will complete the 120V circuit just as described above.
This is not code, but your clock will operate.
Then connect one leg from the 240V cable to the terminal 2

IF your clock is 240 V, then connect both legs of the 240V cable to terminals 1 and 2

7:59 CST Add a comment if you need more assistance, I will be here later this evening

Nov 06, 2010 | Intermatic INC ET104C 24 HOUR ELECTRONIC...

3 Answers

Drawing


OK, sorry, because my internet connection went down for near a month, so ...
No problem for that, just give me your e-mail address.I will e-mail you ASAP.

Jul 03, 2008 | Dewalt 7.2-18.0 Volt One Hour Charger

1 Answer

Changing Dewalt charger from 120V to 240V


all i can say get a seperate step up transformer fron 110v to 220v.then just plug in charger to the step up transformer. make sure that u have 2 consider the frequency in ur country.

Jul 03, 2008 | Dewalt 7.2-18.0 Volt One Hour Charger

2 Answers

Change 120v chager to run on 240v


all you needs is a step tranformer from 110v to 220v ac

Nov 13, 2007 | Dewalt 7.2-18.0 Volt One Hour Charger

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