Volpower Power bank 50000 mah per PC 19-22V laptop portatile 5V cellulari 3.0
46,800mAh（173WH. Super power bank. By Micro-USB: about 25 hours(need 2.1A adapter) By DC: about 7 hours. OV, UV, OC, OT. Circuit protecton. USB1:5V/2.1A USB2: QC2.0 5V/2.1A 9V/2A 12V/2A(MAX). EC5: 12V/10A.