Could a cheap quick charger damage my phone?

Episode 1227 (1:29:22)

Greg from British Columbia, Canada
Anker Charger

Greg wants to buy a quick charge charger. Could he damage his phone with a cheap one? Leo says no, but a cheap plug could overheat and catch fire. The quick charge circuitry is developed by Qualcomm, and they handle most of the processors in phones. So if it says Qualcomm on it, it'll be fine. But if it doesn't, then it's probably a cheap knock off. Even then, the wattage won't hurt his phone. Leo recommends Anker chargers.