Question Doubt AA and AAA batteries leak

No, all batteries are prone to leaking at some point. Batteries self-discharge, which causes a build up of gasses within that will breach seals eventually. The gasses are harmless, but the seals breaching allows for the chemicals within the battery to leak out.

And no, they can't build a battery to contain the gas build up. At worst, you have a grenade. At best you make a battery that's built like a brick, will be expensive, and have less charge within because of the case material needed. Also it's still a grenade.
 
After 5 years, will it be impossible to keep the AA or AAA batteries inside the joystick because they will certainly leak? Today every day when I turn off the device I remove the batteries
 
After 5 years, will it be impossible to keep the AA or AAA batteries inside the joystick because they will certainly leak? Today every day when I turn off the device I remove the batteries
If your batteries still work after 5 years of continuously working you can call the yellow press to report on it...
They will stop working long before they start to leak.
 
AA Ni-MH battery suffers some type of permanent degradation if its charge drops to 0%, can you keep AA Ni-MH battery with 0% charge for the long term?

Here where I live the temperature varies from 33-35C if I charge the AA Ni-MH battery to 100% and store it, what is the time interval to charge again without damaging the battery’s useful life?
 
AA Ni-MH battery suffers some type of permanent degradation if its charge drops to 0%, can you keep AA Ni-MH battery with 0% charge for the long term?

Here where I live the temperature varies from 33-35C if I charge the AA Ni-MH battery to 100% and store it, what is the time interval to charge again without damaging the battery’s useful life?
AA and AAA batteries are not rare or hard to find items.
Unless, of course, you live deep in the Amazon jungle.

Why are you storing these things for years?
Use and recharge until they die. Replace.