I builded a Lithium Battery Charger & Booster Module. I used a TP4056 Li-Ion Battery Charger IC and a FP6291 Boost Converter IC. The result is battery module for a single-cell Lithium battery that can be very useful for powering electronic projects. Since the most famous boards like Arduino, NodeMCU, ecc.. are regulated to 5V the purpose of my module is to safely charge a lithium battery and guaranteed a stable 5V output. For now i designed it with a charging current of 1A, and also the output current is 1A with the voltage of 5V as specified before. In my mind I have the second version of this project in which the output current will be increased at least to 2A.