Help me find a router with QoS and 24vdc input voltage

I am searching for a layer 3 device/router capable of QoS that runs on 24vdc as the input voltage.

The reason for this is that we manufacture racks of specialist equipment that runs on 24vdc and also has battery-backup that supplies 24vdc. We need to add a router with QoS to the rack and it would be very convenient for it to be backed up by the same battery.
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Cisco 2800 series routers havea DC model that uses 24v
Review table 7 for DC input voltage/current requirements

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UKViking2Author Commented:
Thank you. Since posting the question I have more specific requirements which I will post in a new question.
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