I've been assembling my own li-ion batteries for years now. You can make your own high quality batteries for long range FPV, and for much less than it costs to buy them. I cover every part of the process and clearly explain the most important steps.

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Video Chapters:
00:00 - Intro
01:25 - Required supplies
04:08 - Spot welding / soldering li-ion cells
05:30 - Prep for solder
07:46 - Tinning the cell ends
10:35 - Adding wires between cells
12:00 - Assembling cells into order
19:15 - Installing the balance lead

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