DC Powered POE Switch

Wisp manenos again! I’m looking for a 150 Watt PoE Switch that can be hooked up to a 12V battery directly or how can I connect an ordinary POE switch to a battery and output 24V?

Their are soom many out there like this one example https://optace.co.ke/product/mikrotik-powerbox-outdoor-5x-ethernet-router-with-poe/ input voltage 6-30v

The issue is if I apply 12v to this unit what will be the output since its indicated output voltage is same as input voltage?

get something like this https://www.aliexpress.com/item/4000077783578.html?spm=a2g0o.productlist.0.0.7bd1d24f4mYB3D&algo_pvid=37231a71-4b31-452b-8d50-e7e857ecde15&algo_expid=37231a71-4b31-452b-8d50-e7e857ecde15-21&btsid=0ab6fb8315941992271722917e40b6&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_