That’s a good advice. I checked the process for my city. I had to go to the city office, and after I provide my proof of residence they would give me a voucher. I could then use that voucher to dispose any hazardous household waste at a designated waste collection center.

For my battery, I went to Batteries and Bulbs. They did not charge me anything, even returned my lipo bag.

First fellow relay user I find in this thread. Are most of us still in reddit because app still works?

Other way round makes more sense, I think.