A power bank is a portable rechargeable battery that allows you to connect to an external charging source when you don't have access to a wall charger. The market for power banks has exploded, making it one of the most popular electronic products available.
There are three basic components that make up a power bank that is created for sale. A Li-ion (Lithium Ion) or Li-Po (Lithium Polymer) rechargeable battery, a DC-to-DC converter module, and a battery charger module (often based on TP4056 IC). To connect the power bank to any external device, you will also need a Micro USB cable.
Components Required for Power BankAs you can see there are only a couple of parts required to build this power bank. You can buy these parts at the links given above and build this power bank circuit by yourself.
There are three basic components that make up a power bank that is created for sale. A Li-ion (Lithium Ion) or Li-Po (Lithium Polymer) rechargeable battery, a DC-to-DC converter module, and a battery charger module (often based on TP4056 IC). To connect the power bank to any external device, you will also need a Micro USB cable.
Components Required for Power BankAs you can see there are only a couple of parts required to build this power bank. You can buy these parts at the links given above and build this power bank circuit by yourself.