As requested by DJI, here's a teardown of one of their batteries.
All four batteries died after upgrading firmware, and every cell is showing zero volts. This happened at exactly the same time on all four batteries. ... https://www.youtube.com/watch?v=fXnQQuDEkP0
Numbers at: http://eastbay-rc.blogspot.com/2012/03/zephyr-ii-bay-measurements.html
I didn't see any measurements of the Zii battery, servo, and esc bays, so here's a quick measurement before putting everything together. Sorry for the blurrycam!
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https://www.youtube.com/watch?v=G1wggu8uuOI
exported from 4K (60 mbps) to 1080p (30.7 mbps), via quicktime 10. Uploading both to YT for comparison.
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https://www.youtube.com/watch?v=oXnyaTXMlEM
Got the radio problems figured out, it seems everything is working pretty reliably. Big Thanks to TAs Kurt and Josh!! This is with the ArrBot sys0 software. More work to come on calibration!
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https://www.youtube.com/watch?v=VHPBfbZw7Uw