Aukru Raspberry Pi 3 Charger, 5V 3000mA Power Supply 3A Micro USB Charger for Raspberry Pi 3 Model B /3 B/Pi 2 Model B/B Plus, Banana pi

Works as intended, RPi no longer complaining about low voltage. Nice and small too, fits with other bulky plugs very well.

IF you are having difficulty with a proper power supply for your Pi 3B+ (just that few extra millivolts) then this will help you sort things out.

As has been said already, the output voltage at low load exceeds the Raspberry Pi specification, although the chance of damage is low. It runs a Pi3B with no complaint. I have run two supplies for a couple of hours each on a full (3A, resistive) dummy load: there was no problem during that time.I chose this supply partly because it has no switch: switches increase the supply impedance, so can give "brown-out" errors at the Pi.

I needed a power supply for a Pi 3 donated to me and have had no issues at all with this one whilst running the Pi 24/7.

No under voltage messages are sent to the RP anymore so must be good 😁

Using to power the raspberry pi 3b+

I originally ran my Pi 3 from a generic USB cable from a phone charger socket. It worked, but would sometimes show a Low Voltage error on the console, basically because it wasn't getting enough power. I bought this instead and those errors have completely cleared up.

No more little lighting bolt tried lots of usb plugs but always get under power symbol but this is the answer