Was looking for a power bank to top up phone when travelling and found this one. Seems good from reviews and looks to be a reliable brand.
ROMOSS Sense 6PS+ 20000mAh also $26.99 with better display(amazon.com.au)
ROMOSS Sense 6+ 20000mAh at $24.74 with no display(amazon.com.au)
I've had this bank for a few months now.
Would recommend. Fast charges my galaxy 21 in about an hour around 4-5 times before it needs to be recharged.
Remaining percentage goes from 7 to 0% in around 20 seconds tho lol