Pico Power Pico Power is a small power supply / battery charger for personal projects. It costs about $5 for fabrication and assembly on JLCPCB. It uses a USBC connector for power input and can charge a 3.7v LiPo battery (I used this one). ⚠️ My projects are pretty voltage insensitive & can take the 3V of a LiPo battery or a 5V USB input.