These products generally charge batteries and are compatible with most smartphones that support wired charging via USB-C and wireless charging. Anker wireless chargers typically blink in a specific color, depending on the model, to warn that a particular problem is disrupting normal operation. Depending on the Anker charger you own, you may see a light blinking in a different color, including blue, white, orange, and green. A fast-blinking behavior (once every 0.25 seconds) can indicate that foreign (metal) objects may be found between the wireless charger and the handset. The blinking white light will turn to solid white after those two flashes.