CHARGING GUIDE
SG188 – Power & Charging
Follow these simple steps to charge your SG188 Bluetooth sunglasses.
Step 1 – Connect the Charging Cable
- Use the charging cable included with your SG188.
- Connect the cable to the charging contacts on the arm of the sunglasses.
- Connect the other end to a 5V USB power source (0.5–2A), such as a phone charger.
Step 2 – Check the Charging Light
Solid Red – Charging
The red LED stays ON while the sunglasses are charging.
LED OFF – Fully Charged
The LED turns OFF automatically when charging is complete.
Step 3 – Wait Until Fully Charged
- Allow approximately 1.5 hours for a full charge.
- Wait until the red LED turns OFF.
- Disconnect the charging cable. Your SG188 is ready to use.
Charging Light Not Turning ON?
- Check that the charging cable is properly connected to the sunglasses.
- Try another 5V USB power source (0.5–2A).
- Check the charging contacts for dust or dirt. Gently clean them with a dry, soft cloth if needed.
- If the LED remains OFF, disconnect and reconnect the cable. The LED may also be OFF if the sunglasses are already fully charged.
Something Doesn't Look Right?
If your SG188 still will not charge or turn ON, contact Avantree Support for help.
Contact Avantree Support →
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