You haven't had a problem.... yet. Or that you're aware of. Maybe you're damaging the battery/charging circuitry little by little and aren't aware of any long term effects? Or maybe you're doing no harm at all. Who knows, but why not use the charger that came with the phone and eliminate all doubt?
I'll never understand why some people will spend upwards of $600+ for a phone and insist on charging it with $5 knockoff, all the while a factory-supplied charger is included at no extra cost. To each his own.....
