[TechAssist] Re: Charging Circuit--Riobi 14.5 drill Charger
- From: "Tel-Tek" <teltek3@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 24 Sep 2004 23:48:47 -0400
Well Warren...
I have. Now give me your time spent..including L/D phone calls.
Be honest;-)
Sounds very Labour Intensive.
-Ed-
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx
----- Original Message -----
From: "Warren C." <warrenca@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, September 24, 2004 11:03 PM
Subject: [TechAssist] Re: Charging Circuit--Riobi 14.5 drill Charger
> Hi All For those who have been following this!
>
> I tinkered with this drill a bit today and found out a few things
> I hope that this helps others.
> The output device is a 7018 regulator probably on the negative side as the
> bridge
> rectifier + goes straight to the
> battery + terminal.
> The third connection on the battery goes to a thermal fuse then onto the -
> terminal of the battery (all inside the battery of course)
> I also jumpered out the regulator and this turned off the (green) fully
> charged
> light and brought on the (red) fast charge light. Voila!
> Testing the battery voltage it started to rise fairly quickly. I left it
> this way
> for about 1 minute to see how the drill itself would respond. It responded
> very
> well.
> Interesting thing-- with my jumpers now removed the charger now goes to
> fast
> charge on it's own when you plug in the battery.
> I will have to see if I jump started it or damaged it. ( nothing to loose
> right).
>
> Tomorrow!!
>
> Old TV Man wrote:
>
>> I just bought a 14.4 drill with charger and several accessories for
>> $29.99 and am getting a $10.00 rebate. www.heartlandamerica.com
>>
>> Max Bonnell
>> Bonnell TV
>> Robinson, IL
>>
>> Sender: techassist-bounce@xxxxxxxxxxxxx From:
>> teltek3@xxxxxxxxxxxx(Tel-Tek=A0Electronics) Date: Thu, Sep 23, 2004,
>> 1:08pm (CDT+1) To: techassist@xxxxxxxxxxxxx Subject: [TechAssist] Re:
>> Charging Circuit--Riobi 14.4 drill Charger Reply=A0to:
>> techassist@xxxxxxxxxxxxx
>>
>> Same thing goes for you...you cheap bugger. With your money...go out and
>> buy a new one. If he lets you dump your Garbage in his bin....you have a
>> good starting point.
>> =A0=A0=A0=A0=A0=A0=A0=A0I sort of kid about this stuff, but you are all
>> starting to realize, it's really not a worthwhile effort, unless your
>> own time is written off.
>> But an answer to Secondary would be at least 25 to 30 volts.
>>
>> -Ed-
>> Ed Gaidies
>> Tel-Tek Electronics
>> Ontario-Canada
>> teltek3@xxxxxxxxxxxx
>>
>> ----- Original Message -----
>> From: "Gary McCartney" <gary@xxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Thursday, September 23, 2004 9:27 AM
>> Subject: [TechAssist] Re: Charging Circuit--Riobi 14.4 drill Charger
>>
>> Speaking of drill chargers, I have one here that I need to replace the
>> power transformer in it. The primary is open and no thermo fuse. The
>> drill is a Mastercraft (Canadian Tire, ED- your favourite :) ). How do I
>> know what secondary voltage to use? The drill is a 14.4V. Off hand, I
>> would think that around 18V to 20V winding would be about right. The
>> filter cap on the circuit board is rated 35V. Any ideas?
>>
>> Now to satisfy the "pitch it and buy new theory", this drill belongs to
>> a guy who lets me throw all my scrap electronics into his garbage bin in
>> return for repairing a few things he brings in. I at least need to put
>> in an effort on these items. In this case I do have a number of power
>> transformers sitting around doing nothing so parting with one is not a
>> big deal and it woulf keep me in good company with the bin.
>>
>> Gary McCartney
>> McCartney Electronics
>> Guelph Ontario Canada
>> Est. 1984
>> email: gary (at) number63.ca
>>
>> Edward Gaidies wrote:
>>
>> Warren;
>> Depending on the Charger, I would presume you have 12.2V from white to
>> red, and 12.2V from white red. The white is normally fed back to the
>> charger to determine when to go into trickle charge mode. The
>> question.....why are you pissing around with this, when you can go to
>> Canadian Tire, and buy a Drill with 2 Batteries and a Charger for
>> $79.95?:-)
>> Reason these Solid State Components have no part numbers on them, is
>> because they are not meant to be repaired, and even if there was a part
>> number, you don't expect to find a Parts Department for this
>> company....do you????
>> Come on...Get with the program;-)
>> I was using a B&D drill for 7 years, Had Internal NI-CAD battery packs
>> (2). When I wanted to replace the battery packs, they were $47 each. The
>> new version of this drill was $49 Retail. You must have a Birthday
>> coming up, or an Anniversary...Treat yourself...and if you can't find
>> your favourite color.....Paint it. HEHE. Typical Canadian.
>> -Ed-
>> **********************************************
>> Ed Gaidies
>> Tel-Tek Electronics
>> Ontario-Canada
>> teltek3@xxxxxxxxxxxx
>>
>> On 23-Sep-04, at 7:59 AM, Warren C. wrote:
>> Are you suggesting that this three legged device in the charger is a
>> protector of
>> some kind?
>> A white wire leads to it. The other two wires are red and black of
>> course.
>> When you test for vlotage at the battery itself to this third connector
>> one finds
>> that it is almost at
>> ground potential. It's so stupid when companys take the numbers off
>> parts!! This
>> ticks me off!!
>>
>> Warren C.
>>
>> Roger G wrote:
>> Third connector usually goes to a thermal protector or some kind of
>> protector
>>
>> Roger G.
>> Mr. Fix-It
>> Harrisburg, PA 17110 =A0 WebSite- http://mrfixit.netfirms.com
>> rogerfixit@xxxxxxxx
>> FAX 510-740-3641; Tel: 717-763-7098 (shop) 717-652-1703(home)
>> At 11:19 PM 9/22/2004, you wrote:
>>
>> I hope no one minds this question.
>> Does anyone have a circuit diagram of this charging unit. The fast
>> charge light does not come on , only the other two lights.
>> I also would like to know what the third connector on the battery is
>> for. When you follow this wire into the charger you come to an output
>> devise (transistor??) that has no numbers on it. (figures eah)
>> My theory is that this devise may be bad and the drill batteries are
>> fine.
>> BTW the main (-) and (+) connections to the battery are on the left
>> and
>> right side and they connect fine.
>> When you test for voltage in the charger at these two points you get a
>> reading of 24.6 V
>> Can you help???
>> TIA
>>
>> Warren Campbell
>> Campbell's TV & Appliances
>> Cannington ON
>> ----------------------------------------------
>> --------
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