I recently came across a small gadget that’s become a go-to for monitoring how some devices charge. It’s an adapter you pop onto any USB cable, showing real-time charging speeds on a little display. The wattage info it gives is surprisingly useful—especially if, like me, you’ve ever wondered if your cable or charger is delivering the speed it promises and your power source does not give you any detailed info about that.
 
The cool part? It works with all kinds of devices, even ones that don’t usually show charging data. For example, I’ve used it with NPF-Sony batteries, which don’t give you much insight on their own. With this adapter, I could finally see how fast they were charging and whether the setup I was using was efficient. Even your massage gun with the USB-C input port that keeps living on that last flashing LED light now shows you that it’s only charging with 3 watts and is pretty much ready to be unplugged.
 
It’s a cheap, handy tool to upgrade your kit instead of reinvesting in a new kit.
There’s no fancy setup or extra apps—just plug it in, and it does its thing. It’s a simple way to make any standard USB-C cable a little smarter, and it’s especially helpful for troubleshooting slow charging problems.

Click here to take a peak at your new favorite charging adapter