Question about Dewalt 7.2-18.0 Volt One Hour Charger
What wattage should i buy for my DW9116 bought in U S for use in G B
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.
Posted on Oct 09, 2008
a 6ya Repairman 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 repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 19, 2015 | KitchenAid Food Mixers
Nov 16, 2015 | Audio Players & Recorders
May 19, 2014 | Skil RAS800 Router Table
May 05, 2014 | Cuisinart CSB-79 Smart Stick 2-Speed...
Oct 01, 2017 | Vacuums
Sep 17, 2011 | Logitech X-530 Computer Speakers
Jul 12, 2011 | Emerson MW8102SS 1100 Watts Microwave Oven
May 21, 2010 | Dewalt 7.2-18.0 Volt One Hour Charger
Sep 22, 2009 | Toshiba Satellite L305D-S5895 Notebook
May 21, 2014 | Dewalt 7.2-18.0 Volt One Hour Charger
356 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: