How to shut off Led on buck converter

Click For Summary
The discussion centers on a buck converter used for a USB charger that has an LED indicator, which drains the battery when not in use. Users suggest that removing the LED or replacing it with a better diode could potentially solve the issue, though there is uncertainty about the LED's relevance to the circuit. One participant expresses a desire for a circuit diagram to better understand the components involved. Ultimately, the consensus leans towards installing a switch to disconnect the converter when not in use as a practical solution. The conversation highlights the need for effective energy management in battery-powered devices.
Puglife
Messages
157
Reaction score
2
I am using a buck converter with a battery pack, for a usb charger. The issue is, is that the buck converter I have ( http://www.ebay.com/itm/DC-Converter-Step-Down-Buck-Module-7V-24V-to-5V-3A-5V-usb-output-power-adapt-/261030150117?hash=item3cc69bffe5:g:Q3UAAMXQTT9R0Qos ) has a led on it, which slowly drains the battery, so it loses its energy in about a day, without any load on the usb port, because of the led.

My question is, what can I do to stop this? Thank you so much for all of your help!
 
Engineering news on Phys.org
Disconnect the buck converter if you don't use it?

If the LED is not a relevant part of the converter (as those converters use a diode, it might be), it might be possible to simply remove it, or replace it by a better diode. I don't know the circuit they use...
Are you sure it is the LED?
 
mfb said:
Disconnect the buck converter if you don't use it?

If the LED is not a relevant part of the converter (as those converters use a diode, it might be), it might be possible to simply remove it, or replace it by a better diode. I don't know the circuit they use...
Are you sure it is the LED?
well, it is a really small red light, that looks a lot like a square led, with that circular diode in the middle of it, I cannot afford switches at the moment, and was hoping if someone could confirm or deny me being able to remove it, or burn it with something.
 
A circuit plan would help.
 
mfb said:
A circuit plan would help.
I could find none, in the past few hours of searching, I will take your advice and put a switch in. Thanks for your time, I appreciate the help.
 
Thread 'I thought it was only Amazon that sold unsafe junk'
I grabbed an under cabinet LED light today at a big box store. Nothing special. 18 inches in length and made to plug several lights together. Here is a pic of the power cord: The drawing on the box led me to believe that it would accept a standard IEC cord which surprised me. But it's a variation of it. I didn't try it, but I would assume you could plug a standard IEC cord into this and have a double male cord AKA suicide cord. And to boot, it's likely going to reverse the hot and...

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 27 ·
Replies
27
Views
6K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
1
Views
4K
  • · Replies 8 ·
Replies
8
Views
1K
Replies
1
Views
2K
Replies
19
Views
6K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 12 ·
Replies
12
Views
7K
  • · Replies 7 ·
Replies
7
Views
6K