Portable Emergency AA Battery Charger Extender suitable for the Garmin VIRB Ultra 30 - with Gomadic Brand TipExchange Technology
GMICP902937 010-12389-15 Dual Battery Charger for GARMIN VIRB® Ultra 30 4K Action Camera - AliExpress
Amazon.com : 2 Amp (10W) Mini Car/Auto DC Charger Compatible with Garmin VIRB Ultra 30 - Amazingly Small and Powerful 10W Design, Built with Gomadic Brand TipExchange Technology : Electronics