YwRobot Power Shield - 1500mAh Li-Po Battery - for Arduino - YWR-ARD080913
Solar Charger Shield V2.2 | Seeed Studio Wiki
Amazon.co.jp: Cool Soft ESP32 ESP32S 18650 Battery Charging Shield V3 Micro USB Type-A USB 0.5A Test Charging Protection Board for Raspberry Pi Arduino : Computers
18650 shield v3 mobile power bank for Arduino and Raspberry pi - HUB360
BS001 Lithium Battery Shield - Rechargeable 16340 Single Cell - 3.3V/1A 5V/1.3A Micro USB - Power Bank Battery Charging Module - for Raspberry Pi, WiFi Router, arduino ESP8266, ESP32
Portable Power- 18650 Battery Shield for Raspberry Pi & Arduino
Agoal ESP32S ESP32 0.5A Micro USB Charger Board Shield Module