This Power bank circuit have both type B and Type C charging Socket. 2 USB port comes for charing multiple phones. 4 Led indication where each led shows 25% of battery charge. Circuit cintains switchs to check out battery charge any time. This power bank support fast charging. You can connect many battery to this power bank. Battery should be 3.7v 18650 lithium ion battery.
2 USB, Type C & B charging Port Power Bank Module
1 x USB power bank module with Type B & C Charging Port