Lithium Ion Battery Charger with Microchip MCP73831
MCP73833 USB powered Li-Po charger Circuit – Electronics Projects Circuits
DFR0564 USB Charger for 7.4V LiPo Battery - DFRobot | Mouser
GitHub - e-radionicacom/Lithium-ion-charger-with-protection---Eagle-files: Eagle files for Lithium-ion battery charger based on TP4056 with protection.