FMB003 voltage zero

Hello just received a device, connected to a PC/USB and I can find the device but it’s voltage is always 0mv and battery status is not charing. Battery is connected… actually it was already connected when I received from Amazon. Is it normal or I was scammed?


This is normal to charge the battery of FMB003 you need to connect it to the OBD port and connect the internal battery.

Please visit our wiki page to know more: FMB003 First Start - Wiki Knowledge Base | Teltonika GPS (

Best Regards
Maynard C

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