How to shut off Led on buck converter

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Discussion Overview

The discussion revolves around the issue of an LED on a buck converter that drains a battery when the converter is not in use. Participants explore potential solutions to disable or remove the LED to prevent battery loss.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant describes the problem of a buck converter with an LED that drains the battery when not in use.
  • Another suggests disconnecting the buck converter when not in use as a possible solution.
  • Some participants propose removing the LED or replacing it with a different component, though they express uncertainty about the circuit design.
  • A later reply mentions the need for a circuit plan to better understand the situation.
  • One participant indicates they could not find a circuit plan and considers adding a switch as a solution.

Areas of Agreement / Disagreement

Participants express various suggestions and uncertainties regarding the best approach to address the LED issue, indicating that no consensus has been reached on a definitive solution.

Contextual Notes

Participants acknowledge the lack of a circuit diagram, which limits their ability to provide precise solutions. There is also uncertainty about the role of the LED in the circuit.

Puglife
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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!
 
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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.
 

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