You can use an external power supply to supply power.
If you use both the AC adaptor power supply and an external power supply simultaneously, the AC adaptor power supply operates as the "main power supply" and the external power supply operates as the "backup power supply."

Use an external power supply that satisfies the following conditions.

• Equipped with a current limiting function
• Able to supply 90 W or more of power

* Please also read the owner's manual of the external power supply that you're using.

Note:
* Check whether this unit's external power supply connector matches the wiring of the external power supply that you're using. Connecting an external power supply whose wiring differs will cause malfunctions. See VR-50HD MK II owner's manual about pin wiring of the external power supply connector.
* You must supply power in the range of DC 9 V-16 V. Using a voltage outside this range will cause the external power supply or this unit to malfunction.

Correct operation of the VR-50HD MK II when using the external power supplies shown below has been verified.

Manufacturer	Model number	Capacity	Usable time at full charge
IDX	DUO-C98	14.4V 6.6Ah 94Wh	Approx. 1 hour
IDX	DUO-C150	14.4V 9.9Ah 143Wh	Approx. 2 hours
IDX	DUO-C198	14.4V 13.2Ah 191Wh	Approx. 3 hours
IDX	Imicro-98	14.54V 6.62Ah 97Wh	Approx. 1.5 hours
IDX	Imicro-150	14.54V 9.93Ah 145Wh	Approx. 2.5 hours
SWIT	S-8082S	14.4V 6.6Ah 95Wh	Approx. 1 hour
NEP	BL-BP155HE-S	14.8V 10.5Ah 155Wh	Approx. 2 hours

Important notes:
* The operation times indicated above are approximate, and these operation times are not assured.
* Operation times might fluctuate depending on the charge level, the degree of battery depletion, and the operating state of the VR-50HD MK II.
* Even among units of the same model number, usage might not be possible due to differences in design specifications between the individual external power supplies, usage environment, or the like. Operation when using the model numbers listed above is not assured for all units.