Bests & Worsts Reviews from Amazon

So yeah, how do I know if the unit itself is charging? A yellow light flashes until it is fully charged. How do I know if my device is charging? A steady green light will show until it is finished. What does the flashing green light mean? It means your charger battery level has dropped below that where it is of use and needs recharged. What does it mean when you don't get instructions with a new product? It means you waste time looking for them. Fully charged this will bring my HTC EVO 4G LTE up from grave to full pretty close to twice. It will charge a iempire 5s grave to full twice with a bit left over. So why are they so secretive about what the operations functions are? Oh wait, it's because I'm old. Turns out everyone already knew what those lights meant.