From Manufacturer
The SN4 Modular Camera Battery Charger from XTAR is a compact charger for NP-F970 camera batteries. The charging dock snaps easily onto the charger, and the charger is compatible with XTAR charging docks for other batteries, available separately. The SN4 supports QC3.0 and PD3.0 protocols for fast charging, and its USB Type-C to USB Type-A cable can be plugged into AC, DC, automobile, or portable power supply sources. The charger's circuitry protects your batteries from over-current, over-voltage, short circuit, over-charge, overload, and overheating.