Just found this via a quick search: https://www.amazon.com/Sdoutech-10000-Portable-Charge-Oneplus/dp/B078K8TZQ1 no idea if
I personally would just find the highest wattage bank from a reputable manufacturer. I think anker has an 18w with usb c input which would be close enough for me.
This is the first Android device I haven't rooted out of the box. I used adaway for years with no issues on my previous devices. I have been using adguard VPN on my OP6T for about a week now. It runs well save for one hiccup today where I had to restart blocking within the app because ads were...
Just finished first full charge/discharge. It was connected to my PC for about a minute to transfer a file. I'll post another screenshot after a few cycles.
Sent from my SGH-I777 using xda app-developers app
I dont think you can say one rom is best, but so far I've used cyangenmod, unnamed, insan3android, and icscrewd. icsrewd has been my favorite: good battery, stable, and fast.