Update: EC Technology 26800mAh Powerbank with QC3.0
A look at the operational characteristics of this enhanced capacity power bank.
PB05 powerbank on Amazon.co.uk: http://amzn.to/2yRgrWD
Other links:
http://www.diypowerwalls.com/t-LG-LGABF1L1865-Cell-Specifications
http://www.injoinic.com/doc/pdf/IP5318%20datasheet_en%20V1.0.pdf
http://www.injoinic.com/doc/IP5310_Datasheet_V1.21.pdf