IPhone Backup Questions?

[Delly10 0]

Hi. Not sure which subforum to post this on but can the mods move it to the correct one? Have an iphone 13 mini that I will most likely need a battery replacement. Have an older iPhone SE 1st generation where the battery shows service and basically unusable. I most likely will get a new battery for the iphone 13 mini.


I only have that 5gb of icloud free and never paid for more icloud. Seems to be $0.99 for 50gb or $2.99 for 200gb. I do have over 50gb on my iphone 13 mini. I know you should backup your files on the iPhone before you do a battery replacement. I considered getting a battery replacement for the older iPhone SE 1st generation but I don't think I probably will do that as the cost of it is more than the samed phone on ebay. Of course the battery would be 100% though if new battery.


I want to backup both my iphone 13 mini and my iphone SE 1st generation. Both of them use the same apple id email. What I like to do is first back up my older iPhone SE 1st generation. I think I have like under 40gb used up. I would back it up. Then factory reset it. Then try to use it to see if it's as bad as it is now. Phone is not usable. When you click on anything It might work but then it would shut off. Then if it turns back on, battery might show 35% or something or show 10%. Would a factory restore probably help or not? I know the main issue is the battery. I then would sync the phone back with the backup. But if I do that, would it at least function better than it is now or not?


For my iphone 13 mini, I want to do the same thing. Is there any harm in doing this or not? The thing is my iphone 13 mini is a bit slow and lag a bit but it isn't that bad. It is usable. I feel like I could still use it without a battery replacement for a bit though the battery is below 80% almost where people say that is when you should replace the battery. The thing here is how do I create a backup of each iPhone where I won't backup the data on the old iPhone to the newer iPhone 13 mini and vice versa? I don't want those files to mix. Would I need to use 2 different emails on each iPhone? All I recall was when I got the iPhone 13 mini years ago, I did not have any paid icloud and never did. I think it did backup my important information like contacts even if I didn't have paid icloud. Is that correct or not? I don't think I remember myself manually adding each phone number to my contact. I believe when I downloaded WeChat and Whatsapp, everything was there except my chat history though for WeChat. I know my whatsapp messages from then was backed up as I notice the old Whatsapp messages from before I bought he iphone 13 mini being there.


Does anyone have advice on how do I do this for each of these iphones? The thing that has me confused is how do you make sure the backup for each iPhone isn't mixed with one another? I want to make sure when I backup the data on iPhone 13 mini, when I sync the data back, it's only that and vice versa. The thing is if I use 2 separate apple IDs, could one icloud account still do this? I would only sign up for that icloud $2.99 for 200gb probably for a month and then cancel it probably for this reason. But that is not good because if I have something happen to phone, then I lose all my information right except the small amount that is saved from icloud? So which of the 5gb does icloud save for free then? I know it does because when I got a new iPhone 13 mini years ago, I did sync my contact I believe and Whatsapp. Can someone tell me the best way to do this? How long does it take on average for 10gb to backup assuming cable internet? So that way I know of 50gb or 100gb of backup.