Battery is dead? Make your own! | Garmin nuvi 760 GPS for $1 | #04 | Project "eBay38"

Battery is dead, so we'll manufacture our own! We do triage and analysis of device #04 in our "eBay38" project where all devices did cost about $1 on average. This one turned out to be Garmin nuvi 760 GPS, so let's see which condition it is in. If you can help identify any of these devices (if I was unable to identify them, or identified them incorrectly), please post in the comments!
In the current project codenamed "eBay38", we bought 38 electronic devices from eBay for a grand total of $40. Let's see what we've got, and if there is any value here. Stay tuned!
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Disclaimer:
This video is only for entertainment purposes. Any injury, damage, or loss that may result from improper use of tools, equipment, or from the information in this video is the sole responsibility of the viewer.
00:00 Initial analysis
03:44 Can't power GPS via USB cable?!
06:51 Is battery dead?
08:19 Disassembly
12:25 Battery test
14:18 Boost attempt
17:37 Attempting external power
22:45 Directly charging LiPo cell
29:37 Manufacture my own battery
31:33 Reassembly
32:33 Final test