Long-term Capacitor storage questions

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Discussion Overview

The discussion revolves around the longevity and maintenance of aluminum electrolytic capacitors in electronic devices, particularly in the context of long-term storage and the effects of environmental conditions such as temperature and humidity. Participants explore the implications of energizing older devices and the potential for capacitor failure due to disuse.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant questions the maximum interval for energizing devices to prevent failures in electrolytic capacitors, given specific environmental conditions.
  • Another participant suggests that if devices are kept off for an extended period, such as 100 years, there would be no issues with capacitors drying out, but acknowledges that some capacitors may still need replacement when the devices are turned on.
  • A third participant emphasizes that the temperature of the capacitor itself is crucial, rather than the ambient temperature, and notes that the service life of capacitors can vary significantly based on design and manufacturer quality.
  • A later reply identifies the original question as potentially trolling and mentions that it is linked to a banned member who has previously asked similar questions.

Areas of Agreement / Disagreement

Participants express differing views on the implications of long-term storage and the necessity of energizing devices. There is no consensus on the best practices for maintaining older electronic devices with aluminum electrolytic capacitors.

Contextual Notes

Participants note the importance of factors such as the specific temperature of the capacitors, the quality of components, and the unknown history of device usage, which may affect the discussion's conclusions.

augustaa88
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where I live, the temperature varies between 33-35C and humidity ranges from 57-67% without rain, and I have electronic devices manufactured in the early 90s. What is the maximum possible interval for me to energize these all devices and for at least how many minutes to prevent failures in the aluminum electrolytic capacitors caused due to disuse??
 
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This is a bit of a troll like question.

If you can keep the devices turned off for 100 years, you will never have a problem with the electrolytic capacitors drying out.

If you turn the equipment on when you need it, you may sometimes have to replace one or more electrolytics. You will have to replace an electrolytic capacitor now and then anyhow, even if you turn it on sometimes.
 
The temperature that is important is that of the capacitor, not your temperature. Also, the service life can vary by an order of magnitude depending on design characteristics. Another point is the reputation of the manufacturer and the quality of the components they use. Your devices are about 30 years old, and not knowing how long they were used is anybody's guess on what life is left.
 
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Baluncore said:
This is a bit of a troll like question.
Your instincts are good. Turns out this is a sockpuppet of a banned member who keeps asking this type of question here (over and over and over...). This version of him is no longer here, so I'll close off this thread.
 
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