battery box heater

[Turd Furgeson]

todays prep for our upcoming trip.
i had a 1250w 2amp 110v blanket heater used on 55gallon drums.
i wrapped the battery box, lithium inside, and taped it up as best i could.
ran the power to the inverter so i could run it on the road.
heats blanket to 90 degrees. box top showin 78.

kinda ugly but it should work.
i have never posted a pix from the phone so fingers crossed...