I use the ESR HaloLock battery that you have listed for my iPhone 14 Pro. I absolutely love it and would recommend. I think I got it for half the price of the apple battery pack on Amazon (Australia).

It makes the phone a bit thick (the battery pack is a little bit thicker than the iPhone) but honestly I either have my phone on the desk or hold on to it, so it doesn’t bother me that much.

Bonus is that it is also USB-C charging and none of that Apple non-usb-c sh*t, which means I can carry just one cord in my backpack for my laptop, phone, headphones and chargers!

EDIT: Made a typo