AXIS Q6045-E Blackout When Below -30

I have 9 of these in field and when temperature goes below -30 or if windchill goes to -45 to -50 then i get the black screen with insufficient power to run ptz message type of response. I know the problem is the poe switch cant supply enough power to run ptz video and heater at once. I have spoken to tech support but didn't get a fix for it. I reboot unit but only works for while. I wish...

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