CRD 19
From OptiWiki
Power supply
The CRD 19 can have an external power supply, rated at 5V 3.6A.
The power supply is only required for charging without putting a strain on the USB-bus, or when an additional battery is charged. The USB communication and H 19 charging will be powered from the USB bus.
Communication
The CRD 19 has contact pins to the H 19 and a USB-B device connector to communicate to a USB-host.
Charger
The CRD 19 has an additional bay to charge an extra battery. This battery will only be charged when the external power supply is used.
