In a video published today on its YouTube channel, iFixIt shows the surprisingly analog process of fully assembling and testing an iPhone battery. Watch it below.

How iPhone batteries are made

The folks at iFixit recently took a trip to China, which has yielded several interesting videos on the company’s YouTube channel.

Just last month, iFixit published a video showing the differences between genuine and knockoff versions of the Apple Watch Ultra 3, AirPods Max 2, and AirPods Pro 3.

Today, iFixit published yet another interesting video, this time walking through the step-by-step process of assembling an iPhone battery.