20 Most Recent Dewalt 7.2-18.0 Volt One Hour Charger - Page 6 Questions & Answers

Here is a link to a number of 220v chargers that will work for you. You can, of course, use the 110v charger with a down converter.

http://www.google.com/products?hl=en&resnum=0&q=dewalt+220v+charger&um=1&ie=UTF-8&ei=zn8SS52hCcmUtgfUpezqCg&sa=X&oi=product_result_group&ct=title&resnum=4&ved=0CCsQrQQwAw

usually it is a number 1 or 2 phillips or they used a #10 Torx drive bit for the screws. if it is star in shape it is the torx.

it doesn't change to green, the solid red light means it is fully charged, there should be a legend on the front of the charger to help you with this. If it flashes real fast the battery is malfunctioning and slow flashing is charging and again solid is fully charger.

that is normal it happens when u plugged and unpluged. after a second it should show no blinking. then when u insert the battery pack it would show the diagnostics. with the blinking pattern.

if you need the manual , you can get at www.dewalt.com or call us at 407 657 0474 and we can fax it to you.

http://www.220converters.com/ GO TO THIS WEB SITE AND YOU CAN FIND ALL THE CONVERTERS YOU NEED ALSO READ THE NOTES ABOUT WHAT YOU NEED TO TAKE WITH YOU BATTERY AND POWER WISE . HAPPY TRAVELS AND HAVE A GOOD TRIP

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

I'm disappointed that Dewalt does not have the full specs on their website so . . .
Check the specifications on the charger's label; they should read something like 120 VAC or Volts AC and 2.0 (or similar) amperes or just 'A' after a numerical value.
If the label does not give you an amperage value you can use the output value instead and substitute the output voltage at the high end if a range is listed.
To get the adaptor (step-down transformer) wattage, multiply the AC values such as:
120 X 2=240 watts input power.
If these AC values are not available;
Take the high end charge voltage if it is a multirange charger, and multiply those values;
One we own DW9108 (- yours is 7.2 - 18) is spec'd at 9.6 to 18 volts and 2.8 amperes:
2.8 X 18=50.4 watts.
You can see that the values do not correspond but it is a multirange device so the maximum current taken from the AC line can be ~ 2.0 amperes but this is charging a specific pack and the peak input current is only momentary so the maximum output current and voltage are the values one should use as a guide. In other words, the output wattage is closer to the value needed.
Since there are losses in any transformation (mostly heat), the required stepdown transformer must be capable of more than the indicated 50 watts.
A safe factor would be 1.5 X 50 (W) or ~ 75 watts minimum to ensure the charger receives the 120 volts it wants.      
Anything that will step down your (?) 220 volts and is rated at 75 watts or more will do the job even if the Dewalt draws a little more current at your line frequency of 50Hz which it may.

for his charger the output volatge is 36v to 52 volts dc.

It will be marked on the fuse, it varies with each charger.

sorry unit are non repairable. not even a wiring diagram for it.

sorry dewalt charger are non repairable. can't even get a wiring diagram for the unit.

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.

when charger is plug in to ac it will blink once.normal voltage out for the unit in between 36v to 55 volt. the reading u have is normal.

did you consider the freq. hertz in your country & US.
50 to 60hz

Ok, for easy way, you can just put a 1~2A diode in series of the input 240v power wire, so the after voltage would be around 120v, but for precaution it is better that you put two diode in series, it will give you same result. In addition, I have already tested it on a similar charger, it works fine.
p.s: I do have a similar one that is also 110v, I compared it with other 240v one. They worked same.

Inside my (older, non nano) dewalt charger there is indeed a fuse, which has never blown (yet).
I'd be suggesting that you contact dewalt before you void your warranty by opening it up though.

The DW9116 is actually a 120 volt charger so it should cope with 130v AC supply, what is the supply from?

It is normal for a standard 110v supply to run at around 117V

See THIS INFO on power supplies

I did a little hunting and it seems you really want to use your 110v charger on a 230v supply.....

So you could use a transformer (LINK)

or you could get a local power supply pack.

Read the label on back of power pack that attach's to wall socket and charger base, see what input it can handle, some gear can handle like 110v-230v, others cant ie will read 120v

Any adaptor that puts out the same output as the original would work ie 18v DC 2.5 amps is your specs i beleive so use a transformer or another suitable adaptor

Please check my quoted specs are the same as listed on power pack of your charge ie I am assuming you are using your 110v A.C. to 18v 2.5amp D.C power pack

Possible reasons for this behavior: Blinks Long (Red Light): If your battery is too hot, the charger will blink the red light rapidly and for an extended duration. To prevent this, ensure that your battery is not exposed to direct sunlight or excessive heat. Give it some rest to cool down. Blinks Short: If the battery is too cold, it will blink short and fast. This could be due to prolonged exposure to cold temperatures or the battery being idle for an extended period. Allow the battery to charge for a while or bring it to room temperature to resolve this issue. Blinks Very Fast (Doesn't Go Away): If the light is blinking very fast and persists, it indicates that your battery has gone bad and needs replacement.