Comments on: Dead Dewalt battery charger repaired. Model: DCB105

By: paul

paul — Thu, 02 Dec 2021 00:21:42 +0000

My dewalt charger is dcb100, and i found a burnt out smd transister & a smd resistrer, the resister is totally trashed, but transister still looks like a trany, but no numbers or markings.
Is this repairable?

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By: Edd Whatley

Edd Whatley — Sun, 18 Oct 2020 15:29:26 +0000

In reply to stanley rose.

A bit later add on . . .
but here is the specs on the " mystery " transistor that you encountered.

https://alltransistors.com/pdfview-s.php?doc=stbv42&dire=17

In the future a cheap "free " parts source might be one of the good transistors used in CFL lamp boards that you might have held onto for "parts".
The lowest of the very commonly used 13003 series numbering use that same TO-92 case, but I can not confirm the same basing at THIS instant .
The higher end 13003-7 series use the somewhat large heatsink tabbed TO-126 case.

That's it . . . . .

73's de Edd . . .

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By: stanley rose

stanley rose — Mon, 16 Mar 2020 14:44:41 +0000

Hi! I would like to ask the details about R12, R14, R35, R34, R20. Hope you can help me

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By: Ozer

Ozer — Tue, 10 Sep 2019 13:38:39 +0000

In reply to That Guy.

I need dcb105 charger diagram/shema.can u help us about that

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By: That Guy

That Guy — Fri, 21 Jun 2019 14:43:30 +0000

Another great Palestinian, making things work again with nothing but his brain and some discarded parts. Solidarity, comrade. ✊

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By: hac

hac — Fri, 09 Jun 2017 03:33:37 +0000

In reply to roy harel.

Hi sir, you can do what you want with a electronic triac dimmer.
Adjust your dimmer to minimum, and plug a light bulb on it.
Place an RMS multimeter on the bulb and adjust your brightness corresponding at 110 V RMS. Don't touch the adjusting anymore and place a new bulb with different power on the outup, and check again if there is the same voltage on it, meaning 110V.If yes, that's ok, if not, stop all.
At this point, place a 10 ohms power resistor in serial with the 11O Volts charger and plug it to the dimmer, and the 22OV. The charger will work now on 220V

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By: roy harel

roy harel — Tue, 25 Apr 2017 03:45:03 +0000

It was nice to read!
I am searching the net trying to understand what is the principal for converting dewalt Charger from 110v input to 220v input.
Mybe here is a good place to ask

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