How to maintain your cell phone, the "4th R"

[WendyBG]

@Tuni

Using iPhones here, as far as replacing battery every 3 years, instead I usually do a trade in via Apple about every 3 years .

@Tuni, the article discusses this but I didn’t post it because I can only post a few small snips without violating copyright rules. The article was specifically aimed at people who do what you do.
Wendy