I found an old iPhone in a drawer this morning with other old iPhones (some of which can be salvaged) and this one was so swollen that it popped the screen off. Definitely a fire hazard I hadn’t thought of as much.

Definitely recycle any lithium battery showing signs of swelling as they have a risk of exploding I think.

lithiplus.com/…/understanding-the-dangers-of-lith…