How and where to replace your old, depreciated iPhone battery

Apple has confirmed that processors used in the iPhone 6, 7, and SE are intentionally slowed down by newer iOS updates to address aging lithium-ion batteries. The change is meant to reduce random shutdowns by throttling the phone’s CPU, but that also leads to slower performance. While the slower performance might persuade some Apple users to switch over the latest iPhone, there’s a more affordable fix — simply switch out the battery.
To first identify whether your battery is re