Check the recycling centers in your area. Some stores have drop offs for batteries.
When should you discard a PFD?
Anually
Discard and replace it - do not attempt to fix it
When is torn or has torn straps, discolored.
YES
Abdi
When is torn or has torn straps, discolored.
Discard
Discard the food
Revise or discard your hypothesis.
You can discard property that is left on your property. In order to avoid problems, you should attempt to contact the owners first but you don't legally have to.
Seriously, you discard an oven when it breaks, which implies as well that it is unsafe to use. If it works and is safe to operate it, you can continue using it, regardless of how old it is.