Plug your power bank into a wall outlet if at all possible. Your power bank must have arrive with a USB cord and wall adapter. Plug the larger end with the USB cord to the wall adapter. Then, plug the smaller finish into your power adapter. Leave the power bank https://modernsmarthealth.com/product/highly-recommended/charger-wireless-wired-wallet/battery-charger-cases/battery-capacity-battery-charger-cases/5000-6999mah/for-galaxy-s8-plus-battery-case-5500mah-battery-portable-charger-protective-charging-case-pack-power-bank-cover-for-samsung-s8/