I bought my original iPhone5 when it was first launched. It’s in pretty good condition considering its age. What was not so good was the battery. It would drain quickly and would jump from 30 or 40% to dying and demanding a recharge.
I took it to my local apple store and they ran some battery diagnostics. The output looked something like this.
Basically this shows that its on its last legs holding about a quarter of its original charge and with only a quarter of its expected charge cycles left.
So I bit the bullet and paid a Genius to put in a new battery for me and they did this in about a half-hour.
So I should now have another two years of life with my phone.
Until iPhone6 comes out then one of the kids will have it to play with….