Use the DJI Mini 4 Pro charging hub with USB Power Delivery
Match the hub to a supported USB-PD power source, understand sequential battery charging, and separate charging from its power-bank function.
Direct answer
The shortest reliable path.
DJI says the Mini 4 Pro Two-Way Charging Hub supports USB Power Delivery and charges up to three batteries in sequence, not all at once. DJI recommends its 30W USB-C charger or another USB-PD charger for charging speed. With a sufficiently charged battery installed, the hub can also power a mobile device or remote controller through USB-A.
System view
Check the whole path.
- 01AC power
- 02USB-PD charger
- 03USB-C cable
- 04Two-Way Charging Hub
- 05Battery bays in sequence
Scope before steps.
DJI Mini 4 Pro batteries used in the compatible Two-Way Charging Hub with a documented USB-C power source.
Battery-cell repair, charging after impact or swelling, exact charge time with every third-party adapter, or flight-time claims.
Procedure
Do this in order.
- 01
Build the USB-PD input path
Connect a DJI 30W USB-C charger or another documented USB-PD charger to the hub with a suitable USB-C cable.
- 02
Seat the batteries and read the indicators
Insert compatible batteries fully and use the hub indicators to confirm which battery is being charged.
- 03
Allow the sequence to complete
Leave the hub connected until the required batteries report complete status; do not interpret an idle later bay as immediate failure.
- 04
Use power-bank output as a separate mode
When needed, keep at least one battery with ample power in the hub and use the USB-A output for a phone or controller as documented by DJI.
Diagnostic matrix
Read the result, not the guess.
| What you see | Check next | What it means |
|---|---|---|
| One battery charges while another does not yet start | Confirm the active indicator and wait for the sequential cycle. | This matches DJI’s documented hub behavior. |
| All bays charge unusually slowly | Verify the adapter supports USB-PD and compare with DJI’s recommended 30W charger path. | The source protocol or available power may be limiting charging speed. |
| One battery is never accepted | Record the bay and battery combination, then retest with a known-good compatible battery after everything cools. | The fault may follow the battery or one hub bay rather than the common power source. |
Stop conditions
Know when not to keep changing things.
- Do not charge a swollen, leaking, impact-damaged, or abnormally hot battery.
- Do not cover the hub or leave the charging setup exposed to moisture.
- Stop using the hub when heat, odor, deformation, or repeated status errors persist with a known-good source.