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Hi Ed, I only get 14v when the battery is open circuit. The charger was only used to charge this batt.
hi tpetar, it's NiCd. https://www.blackanddecker.com/attachments/HPB18.aspx
I didn't try to repair the charger because the casing is not openable. I will need to cut it open.
What...
Hi all,
I posted this question before but the solution provided didn't work. So let me try this again.
I have a black and decker 18v batt but the charger blown.
I have been trying to charge the batt with a computer psu. I know I need 21v to charge it.
The cheapo comp psu pumps out 22v...
Hi Frank,
Thanks for the reply. However, I have a problem, I am using a Pc power supply. When i use 10 ohm resistance, the current is drawing more than 2A!! To set it to 300mA, I used a POT and found that I have to use 18.6ohm, but the voltage drop across it is 5.6volt. The psu only...
Hi there,
I removed the resistor and just connect the 6 diode (rectifier) in series between the +24v terminal to the positive of the battery. However it's drawing 4.0A into the battery. Should I be using a resistor? What value should I use? Do I have to look at the power rating of the...
Ah.. Thanks for the lesson, this is the second pot I blown. But the small blue one with the little gold dial on it didn't blow, I used it on a breadboard. It gets a little warm only. Does that one has a higher watt rating?
They looks like this
**broken link removed**
:razz:
Thanks, using diodes sounds like the simplest way to go.
I tried using a 5k pot to bring down the voltage to 21v but it was smoking and melting after 10 second. Why is that?
Hi all,
I have a black and decker drill powered by a 18v ni cd battery. It comes with a charge which output 21.4v 210mA 9w. However the charge blown.
So we a did was charge the battery with a pc power supply with 17v terminal. It starts off with 300mA and after a day the current dropped to...
Hi there,
I came across a YouTube video. That guy was doing exactly I wanted to do. I have the same led stripe for drl. I don't have an optocoupler but I have a few relay kicking around. Can I do what the guy do in the YouTube? Is he connecting it right? He seems to be short circuiting it...
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