Inflight Battery Warmer

The URL link fails to open for me... is this an active link?
I'd like to download your STL file, I don't have a 3D printer but know a few that do and hopeful they'll print up a copy.

Is there room between cover and battery to fit a toe warmer?

I'm looking at various 3D printers... may I ask what printer you're using?
 
@dougcjohn Cut and paste DJI Inspire Battery Cover by acstrobe into your browser. The link works that way.
Cheers!
 
This worked out great for me today. I flew in 24F temps. Started with a 19.5C battery temp and ended with a 31.5C battery temp. I think it worked out very well.



Some simple foam and masking tape. Easy peasy.
I used the very same closed cell foam but used clear packing tape instead. Much lighter than the Spaceloft material sample i bought.
 

What flighttime do you get With the extra battery?