In charging mode, if the green charging indicator remains constant, it indicates that the battery is being charged using fast charging mode (9V2A); if the green charging indicator flashes, it indicates that the battery is being charged using non-fast charging mode (5V2A). 

Please check if the charging mode is green and the charging indicator is constant, and check if the adapter has a 9V2A output; determine if fast charging mode is being used, as charging speed is significantly improved in fast charging mode. 

Supports the following protocols: PD3.0/QC3.0/QC2.0/FCP/AFC/PPS, for charging direct-charge batteries. Required charger specifications: 5V/3A, 9V/3A, 12V/3A, 15V/3A. Maximum input power is 45W. For fast charging, a charger with a power of 45W or higher is recommended. 

PXW Series: PXW-Z90, PXW-Z150, PXW-X70, etc.; NEX-FS Series: NEX-FS700, NEX-FS100; HXR Series: HXR-NX100, HXR-NX80, HXR-NX5R, HXR-NX3; Others: NEX-EA50, HDR-AX2000, HDR-AX1000, etc.; Some professional cameras from brands like JVC and Panasonic may also use this interface; Monitors: Many external monitors also use this interface, such as Feelworld and Portkeys; Wireless Video Transmission: Power supply interface for video transmission systems from Hollyland, Tilta, DJI Ronin, etc.; Lighting Equipment: Many small LED video lights and fill lights also use the L-series interface, and the NP-F970 can serve as a powerful external power source.