I understand that the feed to the Radarbox will be via the USB leads only. If you were using it in the car using a laptop computer, then you would not have very long spotting before the laptop battery went flat. Is there any facility for using the 12V cigar lighter socket please, your stay on site would then only be governed by the laptop capacity, 2 - 3 hours in my case. The SBS-1 is now becoming more attractive for this task as it now uses a 12V supply.
Peter