Question about Hitachi 12v 3/8" Driver Drill Kit with Flashlight DS12DVF3

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Charger what is the secondary voltage of the transformer on the battery charger?

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Re: charger

Your primary input voltage is of course 110V and the secondary would be anywhere from 14.5 to 15 volt.

Posted on May 23, 2008

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I need to replace the transformer inside my 12 volt charger. I can not find who makes the ES -66-287rev5 transformer. Need help.

If you have the skill to determine the transformer input is open, I would expect you have the skill to replace a transformer. Based on this assumption: determine the input voltage (120 vac?), determine the output voltage (14 vac?), determine the power requirements (output voltage times the charging current), find a transformer at or or

Sep 15, 2014 | Drills & Drill/Drivers

1 Answer

Charger not working

3 possible reasons:

1. Usually the cable of the charger is cut inside (the wire inside the cable).
Try to change just the cable.

2. The battery is Dead so it cannot be charged. Change battery.

3. Inside the charger, the fuse or transformer are dead. Change them one by one and test in the middle.

Another brilliant solution is: Buy a cheap Charger that fits your voltage and change the plug so as to bit your tool.

Jul 21, 2011 | McCulloch Drills & Drill/Drivers

2 Answers

Charger not charging,charging led not lite. Reading approx 3.2Vac out of terminals. On a good charger the reading is 4.8Vac Dewalt Charger ( Model DW9118) 7.2V-14.4V

You can try warranty services. However, if they are having an event in your area you might just try going down there. I have taken bad batteries to them in the past and they just GAVE me a new one.

May 04, 2011 | Dewalt Drills & Drill/Drivers

3 Answers

Charger broke

common problem, go here

May 14, 2010 | Black & Decker 18V Cordless Drill/Driver

2 Answers

Powa Force drill charger is dead

Powaforce battery charger.

  1. Measure the dc output (with multimeter) on female plug. Should read ±16 – 20V DC. If no voltage here open charger and measure 220v AC on input wire before transformer. No voltage faulty input cable or 3pin plug. If ok check for dc voltage after transformer. If transformer faulty (not worth repairing) replace with same dc volts and amp (important)output. Check now output cable.
  2. If voltage is on cable but base does not light up, probable faulty capacitor. If light is on but does not charge, probable rectifier that gives too little amps.
  3. Any good tv repair technician can help you. My tv tech already fix about 9 of my torch and drill chargers. Parts usually about R5 – R10.
ps. email me the specs of your charger the input, output, the current (MA) and the voltage 14.v or 21v to

Dec 04, 2009 | Drills & Drill/Drivers

1 Answer

Schematic / service information for Black and Decker VP 130 battery charger

Power supply for the VP130 is a 4.32v 210ma AC transformer.
The AC supply is fed to the charger battery box where there are two diodes one for each battery.
each battery is 3.6 volts.

Jan 17, 2008 | Dewalt DW056 18 Volt Cordless Impact...

3 Answers

Battery charger model 1400666 not charging The red led is not on.this is a 12 volt charger.

I have two 18volt chargers doing the same thing. I have had them apart and it seems to be the transformer not pushing any power thru. If you can find a transformer that fits and has the right voltage that should fix the problem. From what I can make out if you leave the battery in for too long on charge it cooks the transformer. Hope this helps

Nov 19, 2007 | Ryobi Multi-Volt Battery Charger

7 Answers

Drill battery charger doesn't work

Hi Firemedic13; Most chargers like yours have a fuse inside them. Remove the screws that hold the charger together. The fuse will be on the low voltage side of the transformer. Un-solder and replace it with one of the same value. If the charger is not held together with screws (doubtfull) you will have to carefully cut along the seam where they were glued together. A dremmel tool works good for this. After repairing use some ABS pipe glue to re-seal them together. If the fuse is not blown then the unit will require testing by someone that is proficient with a multimeter. Most times it is the transformer that has fried a wire. If the sides of the transformer have any burnt spots on it then it will be the culprit. Hope this has helped. Best regards; HELP2DIY Please dont forget to rate my answer.

Jul 03, 2007 | Hitachi 12v 3/8" Driver Drill Kit with...

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