Other bus powered devices – Metric Halo Mobile I/O User Manual
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Troubleshooting Guide
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When using an external battery source, DO power Mobile I/O directly from the battery – not through an
inverter. DON’T power the computer with an external battery and use the computer to power Mobile I/O;
doing so will not resolve your bus power problems, and it will give you more limited run times. If you need
to use the external battery with the computer use two batteries or split the DC supply at the battery and power
both the Mobile I/O and the computer.
OTHER BUS POWERED DEVICES
Mobile I/O consumes enough power that it is very unlikely that you will be able to successfully bus power
Mobile I/O and any other bus-powered device (except for a hub) from the same computer. If you plan on using
other bus-powerable devices with your computer, you will need to either self- power your other devices or self-
power the Mobile I/O. It is probably best to use the Mobile I/O’s power supply in this situation since Mobile
I/O will then provide approximately 30 Watts of power to the bus (roughly 3x what most Portable Mac’s will
supply). This will allow you to power all the rest of your devices without any concern of running out of power.