Nikktech tried the CHJGD 21000mAh Magnus Opus Premium Powerbank
A quote from the article:
If you own mobile devices compatible with Qualcomm's Quick Charge 3.0 or if you just want plenty of juice for even your large tablet the 21000mAh Magnus Opus premium powerbank by CHJGD is well worth your attention.CHJGD 21000mAh Magnus Opus Premium Powerbank Review @ NikKTech