I recently bought a Raspberry Pi 3B+ and a 5V 2.5A Power Supply (not the official one), but I'm having the Under voltage warning, so i decided to get a new Power supply. My first thought was to buy the official 5.1V 2.5A, but I have searched the internet and some people use higher ampere power supplies.
So my question is if I want to use several peripherals at the same time on my raspberry pi, such as mouse, keyboard, pen drive, controller, usb extenders... will I need a higher ampere power supply to power all these peripherals? Or will the official Power Supply work fine to power all these peripherals?
Sorry if this is a dumb question but i don't know much about voltage and amperage!
Thank you for your attention!