BlitzWolf BW-P9 10000mAh 18W QC3.0 PD3.0 Power Bank External Battery Supply Dual Input & Dual Output - Black is down to around $18 delivered from an Australia warehouse on Banggood at present with the coupon BG5f265e. Over 900, 5 star reviews. Overall the reviews look very good.
Specification:
Brand: BlitzWolf®
Model: BW-P9
Color: Black
Capacity: 10000mAh
Battery Type: Lithium Polymer Battery
Ports: USB A + Type C + Micro USB Ports
Power: 18W Total
Input: TYPE C/Micro USB Input:5V=2A,9V=2A,12V=1.5A
Output: TYPE C Output: 5V=3A,9V=2A,12V=1.5A
USB A Output: 5V=3A,9V=2A,12V=1.5A
Fast Charging: Type-C Input: Compatible with PD3.0 PD2.0
Type-C Output: Compatible with QC3.0 QC2.0 PD3.0 PD2.0
USB-A Output: Compatible with QC3.0 QC2.0
Size: 1397015.5mm
Net Weight: 200g
Weight: 230g
Certifications: CE, FCC, RoHS
Must admit I do like this powerbank. It's build quality is way below Xiaomi (all plastic) but can't fault the actual performance. Wish they'd just do away with the microusb and add another usb c but otherwise nice and thin, lightweight and pd charges nicely