What recommendations on how to prevent deformation of the dielectric layers in aluminum electrolytic capacitors from stored electronic devices that were manufactured in the early 90s and early 2000s and store in my home at a temperature of 33-36C, humidity 57-67% and energized devices at 220v AC 60hz?
How many more years do you intend to store the devices?
I would charge them slowly to the mid voltage level through a 2K2 resistor for about half an hour.
Then increase the charge voltage to full and give them another half an hour.
Finally remove the resistor and give them full voltage for about 60 seconds.
No idea -try google.
The first hits give you some clues, the forum is worth a search too.
They do naturally die off , but unsure of the reason , but your 33C can't help.
maybe you could look to circuit design changes to minimise usage ?
my electronic devices is:
1)90s: console SNES FAT and SNES Jr, power supply 5v or 12v
2)2000s: PS2 Slim 90000, TVs CRT 29" Philco and Toshiba, PC internal DVD SATA drives, power supply 5v or 12v
3)recent: TVbox T95 Max Plus
all electronic devices uses Aluminum Electrolytic Capacitors
and I am confused about the long and safe range to energize all these devices in the 220v AC 60hz power of my house and prevent failures in these aluminum electrolytic capacitors caused by disuse
the storage of these devices in my house are temperature 33-36C humidity 57-67% without rain
is there any study or article or pdf with analysis in conditions similar to mine?
And I am confused because none of the devices you mention use capacitors at 220VAC. All electrolytic capacitors are designed/built with active chemistry in the capacitors. Those capacitors will eventually fail whether they are continuously powered or never powered. They fail for chemical reasons.
Suggest you either use the devices or replace them. Why the question in the first place?
- Throw out the old, buy new when you need to.
Hi, @cloudff1987
From looking at previous threads you have posted you have a serious worry about component longevity.
What is the full story , are you a collector of electronic devices?
Since personal computers became popular in the 1980s, there have sprung up a large number of component manufacturers, some producing components of doubtful quality.
Even shelf-life quality.
Electrolytic capacitors is one of the main sources of device failure due to component deterioration.
Unfortunately because of this lack of component performance consistency, these components are not very predictable when it comes to the sort of parameters you are searching for.
I work in the industrial electronic repair industry, and a device can be 12 months old or 5 years old and still fail due to component working within their stated parameters, but failing due to quality.
It could have been sitting on the shelf or been powered up 100% of its life.
There are methods, as discussed earlier in this thread to power up devices that have been on the shelf for long periods of time, this may help restore some components or it may allow you some safety margin of circuit damage if a component fails during these methods.
Tom.. 
For My case and conditions what recommendation interval energize devices
Haven't you been reading what has been said?
There is no recommended levels because you are dealing with unknown devices of unknown quality.
You need to look at the manufacturer's history! At one time ALL Dell computers would die early because of cheep electrolytic caps. They almost went out of business because of that. Do you have any devices made by companies with similar manufacturing problems?
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