How charging worksĬharging is a factor of three things you probably remember from high school: power (watts), current (amperes or milliamperes), and voltage (volts). If you want to charge all your devices efficiently, you need to understand what’s going on.
Have you ever tried to charge your computer from a phone charger? Or an iPad from your computer’s USB port? It happens at a crawl. While this is largely a good thing, it’s not without pitfalls. Now, it’s possible to plug the same charger into your smartphone, tablet, laptop, and soon, I’m sure, your toothbrush. Almost 20 years later, most of the industry is moving toward USB-C, and even Apple, known for doing its own thing, uses USB-C for its latest MacBooks and iPad Pros. Some gadgets were a little more practical and used one of a variety of USB connections, but it almost felt like there were as many standards as manufacturers. Steve Johnson via Unsplashīack in the good old days of the early 2000s, every device had one charger. You can just use the charger that came with your device.
