5 “It’s Fine to Use Cheap Chargers”
Not all charging accessories are created equally. You should avoid using cheap, knockoff or poorly made chargers — like those you pick up from the gas station or buy off eBay for a couple bucks. Why? Because those cheap chargers are actually a really serious safety hazard.
To be clear, you don’t necessarily have to use only first-party Apple chargers with your iPhone. But it’s strongly recommended that, if you do opt for third-party accessories, you only use MFi-certified hardware with your Apple device. It’s the surest way to avoid any charging-related problems.