High-Capacity Portable 5v Power | Multi-Cell LiPo Charging | Adafruit Learning System
2S LiPo/Lion Battery Charger Using Micro USB 5V/2A Power Supply : 3 Steps - Instructables
2S LiPo/Lion Battery Charger Using Micro USB 5V/2A Power Supply : 3 Steps - Instructables
I2C-Controlled Li-Ion Power Management IC with Integrated Power Devices Charges High Capacity Batteries from Any 5V Source While Keeping Cool | Analog Devices