A:AnswerThis charger is a simple vehicle outlet to USB. As long as you have the appropriate charging wire with a standard USB end, it will plug into this charger.
A:AnswerI would not recommend any fast charging device for equipment that is not compatible with these devices. The fast charger could cause overheating or over charging. This could cause the battery to leak, burn, or explode.
A:AnswerThe S9+ uses USB-C cable. This charger comes with a micro USB cable which is not compatible with your phone. If you have a USB-C cable, you should be able to plug it into the adapter of this fast charger as the cord is removable.