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if you let the battery go completely dead, that's not exactly good for the battery. The phone itself won't be damaged besides maybe needing to update the OS if newer versions are available
 
Will it have an adverse impact on performance and battery?

Ok? what do you consider ‘a while‘? You’re kind of vague here.

The biggest contributor would be lithium ion technology, when it’s fully depleted and remains depleted, sometimes you can’t revive the battery back to its current state. That’s why you want to regularly charge lithium ion batteries, as it’s not healthy to keep it depleted for a prolonged amount of time without any usage.
 
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Ok? what do you consider ‘a while‘? You’re kind of vague here.

The biggest contributor would be lithium ion technology, when it’s fully depleted and remains depleted, sometimes you can’t revive the battery back to its current state. That’s why you want to regularly charge lithium ion batteries, as it’s not healthy to keep it depleted for a prolonged amount of time without any usage.
I’m just not going to use it as my daily driver for a while but not planning to turn it off and drain the battery. I’ll insert my secondary sim in it but I will barely use the phone. My concern is if it’s going to affect the performance since I’m just going to charge it when needed be and that’s it for a while like maybe a month.
 
I have my previous phone (6S) as a backup/iPod and it spends a lot of time powered down. The only thing I make sure is that it is always between 40-80% charged at all times.. If I was going to leave it on all the time I would do the same.
 
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I’m just not going to use it as my daily driver for a while but not planning to turn it off and drain the battery. I’ll insert my secondary sim in it but I will barely use the phone. My concern is if it’s going to affect the performance since I’m just going to charge it when needed be and that’s it for a while like maybe a month.
A month doesn’t do anything.

Imho it takes longer from production in china until u have it in your hands for most phones and not even thinking of billions of other devices.
 
Boot it up every month to check the battery charge level. A lithium ion battery is happiest in storage when it's state of charge is 40%. Charging it to 50% and then storing it (for one month) is acceptable. The charge level will drop during storage. If it's left neglected for too many months it'll deplete the battery to zero - and that's really hard on the battery and could permanently damage it.

The electronics don't care if you don't use them. - it's the battery
 
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After a few months to a year the data is at risk of corruption from charge dissipation in the flash memory. Multiple years without powering on the device is seriously rolling the dice
 
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Will it have an adverse impact on performance and battery?

Are you talking about turning off the phone for possibly days or weeks? In that case, posts I've seen indicate turning it off with 50-70% battery storage. That storing with close to 0% or at 100% is detrimental.
 
I had my 11 pro max as a back up phone for 3 weeks. Never really used it, but kept it powered on and with WiFi on. The stand by is insane on Apple devices.
 
I had my 11 pro max as a back up phone for 3 weeks. Never really used it, but kept it powered on and with WiFi on. The stand by is insane on Apple devices.
I know right. That's exactly what I'm doing. I haven't been using for it few days now but I keep it ON all the time and I update the apps daily. Once in a while, I'd watch a video or two on YouTube and that's it. Standby is crazy. Also, a 2-hour "downloaded" movie on Netflix only consumes 10% of the battery. Amazing.
 
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I know right. That's exactly what I'm doing. I haven't been using for it few days now but I keep it ON all the time and I update the apps daily. Once in a while, I'd watch a video or two on YouTube and that's it. Standby is crazy. Also, a 2-hour "downloaded" movie on Netflix only consumes 10% of the battery. Amazing.

I ended up switching to my 11 pro max for my daily and I’m in love with it again.
 
It gets lonely and resentful. Probably won’t recognize you in Face ID as well, since you’re practically a stranger. Sad.
 
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