Holy Stone HS790 Charging Hub

What functions does the HS790 Charging Hub support?

The HS790 Charging Hub supports three main functions:
•Battery Charging
•Power Bank Mode
•Battery Power Accumulation Mode

What do the status LED colors mean?

•Flashing Red: Charging battery
•Flashing Blue: Power Bank Mode active
•Solid Red: Battery Power Accumulation Mode active

How long does it take to charge a battery?

The shortest charging time is approximately 110 minutes per battery when using a compatible charger.

What charger is recommended?

Use a USB-C charger with an input of 5–12V and up to 2A. QC and PD fast charging protocols are supported.

Can I charge multiple batteries at the same time?

No. The HS790 Charging Hub charges batteries one at a time. When multiple batteries are installed, they are charged automatically in sequence according to their power levels.

What is Battery Power Accumulation Mode?

Battery Power Accumulation Mode transfers power from batteries with lower charge levels to the battery with the highest charge level, helping combine the remaining power into one battery.

How do I use Battery Power Accumulation Mode?

•Insert more than one battery into the charging hub.
•Turn on the battery power.
•Press and hold the Mode Button until the status LED turns red.
The charging hub will transfer power from the battery with the lowest power level to the battery with the highest power level. Press the Mode Button once to exit this mode.

How do I use Power Bank Mode?

•Insert a battery into the charging hub and connect your device to the USB-C output port.
•Turn on the battery power.
•Press the Mode Button once.
When the status LED flashes blue, the charging hub will begin charging the connected device. Press the Mode Button again to exit this mode.