Supercap/Goldcap - Replacement in my receiver after 14 years of daily use

[marabella]

Hello

After 14 years I decided to replace the supercap for my Denon AVR-1910.
It's a 1F, 5.5V Elko.
I just want to let you know what my measurements showed:

The capacitor now is loosing about 1V per day.
So, after 5.5 days it will be near to 0V if not charged.
The memory for the settings probably is lost earlier - I don't know it's critical voltage.

I hope this gives you a clue as to the ageing of these supercaps.

Best regards

 

[jean-paul]

If you treat them like rechargeable batteries with an extended and maximum lifetime of 10 years you'll always replace them in time. Just before settings are lost and, more importantly, before they start to spill their acidic electrolyte 🙂