In this video we explain in easy to follow, step-by-step instructions how to charge the battery of a fake JBL GO 4 Bluetooth speaker.
You can either use the supplied USB Type C charging cable together with the charging cube of your smartphone (or other USB ports, like e.g. on your laptop).
Another option is to use the charing cord from a Nintendo Switch or your laptop (depending on if it is charged via USB-C).
The charging time for a full charge is 2.5 hours.
The LED on the side of the speaker will start blinking in red when the battery is low and you should start charging it soon.
The speaker does not transmit the battery percentage information over Bluetooth.