micro:bit Battery Holder - 2xAAA (JST-PH) - STEM Education Works
Amazon.com: Geekstory Battery Holder - 5 PCS 3V AAA Battery Case Cover Storage Box with ON/Off Switch and Wire Leads PH2.0 JST Connector Male for BBC Micro:bit Arduino : Electronics
Display battery capacity on the micro:bit : Help & Support
powering your micro:bit : Help & Support
Battery Connector Puller for micro:bit - YouTube
Powering a Micro:bit from a 3.7V LiPo Battery | MicroBit Spy