External Power Interface; External Dc Charger Interface; External Battery Interface - Queclink GL300M Series User Manual

GL300M Series User Manual

2.5. External Power Interface

2.5.1. External DC Charger Interface

Pin 2 on the Mini-USB connector is used for charging and named as VCHG pin. It can be
connected to a 5V DC power supply to power up GL300M Series and charge the internal battery.

2.5.2. External Battery Interface

Pin 8 on the Mini-USB connector is for external battery and named as EXTBAT pin. It can be
connected to a 3.7V Li-ion or Li-Polymer battery to power up GL300M Series.
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