For Arduino Nano V3.0 Prototype Shield I/O Extension Board Expansion New Module 3.3V|module board|nano v3.0nano arduino - AliExpress
18650 Battery Shield V8 Mobile Power Bank 3V/5V For Arduino ESP32 ESP8 – diymore
Arduino Nano to UNO Shield - ElectroDragon
Small Footprint Arduino Nano With USB Charging Circuit (Li Ion or LIPO) That Can Turn Itself Off (soft Latch Power) : 8 Steps (with Pictures) - Instructables