Damn boy October is almost one year away and it already annoys you. Go for it.

only you can answer that. is $100ish worth it to you for your phone to last past 8pm?

I would turn off location, background app refresh and other battery draining settings. You could also put your phone in low power mode to save even more battery. 82% is low but you should make it until next year.

Apple won’t change your battery until it reaches 80% anyway.

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It’s not about timing, it’s about it literally not being useful to me in days where tracking and transporting are very important.

Resale would be higher

Is the battery replacement cost ok for you to justify not worrying about the battery for another 10-11 months?

Well, I could change decision to upgrade and keep it for longer