The other day, I was going through a bag full of old tech — I mean, really old tech — trying to convince myself to finally get rid of phones that I hadn’t used for 10 years or so when I came across a battery. One of the batteries that I used to carry around in case my phone ran out of juice.
You see, once upon a time, smartphones had replaceable batteries. Instead of having to carry around a portable charger or search desperately for a wall socket so you could charge up your failing phone (assuming you had a power cord with you), you could pull off the back of your phone, replace the out-of-power battery with a fully charged one, and proceed happily on your way.
