I too rich a 13pro and it's a great service. Pretty sure I'm still on the same battery from purchase. It doesn't last 1.5 days like it used to, but I also make sure to turn off all of the tracking, location services, GPS, and any other superfluous features and limit apps to system resources when not in active use leaving only the apps I need it wasn't notifications for to run in background and it's made it so it'll still cruise through 30-40 hours of normal use without much trouble. I don't need to upgrade, but this whole lightening thing is getting supremely annoying now that many people don't carry them anymore, it's constantly something I need to keep around, and between the airpods and my 13, everything ender in my life is usbc. I'm so over it at this point and as a creative professional, the new video features are finally something I can realistically consider upgrade worthy.

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