Sony BRAVIA BZ40J 100" Class 4K UHD HDR Commercial Monitor - Manual (Page 293)

Help Guide
Digital 4K Video Camera Recorder
FDR-AX43/AX43A/AX45/AX45A/AX60
The POWER/CHG (charge) lamp flashes while the battery pack is being charged.
When the battery is being charged using the USB Cable, disconnect the USB Cable and connect it again.
If the temperature of the battery pack is too high or too low, you may not be able to charge it.
Attach the charged battery pack to this product correctly. If the problem persists, disconnect the AC Adaptor from a
wall outlet (wall socket) and contact your Sony dealer. The battery pack may be damaged.
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