In-Vehicle USB Charger for BC 1.2 Profile - Molex | DigiKey
ThermoElectric Generator: USB Charger powered by a Candle - YouTube
IPOWER TOWER Anodized GOLD Thermoelectric Generator 10W TEG Generator 5V USB & 1.2V-12V POWER Built in Dual Output Charger Controller 1.2V to 12V Battery Charger Free Burner Included Free Turbo Current Booster
Mobile Charging With Heat Using A Thermoelectric Generator TEG Module