YUNIQUE Belgium 2 Pcs Rechargeable Lithium Battery 3.7 V 802540 Battery 3.7 V 1000 mAh with Protection Panel for WiFi Kit ESP32 Development Kit for Arduino Nodemcu : Amazon.com.be: Toys
Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits