Get more flight time with a DIY lithium-ion battery

Whether you fly a drone or RC plane, using a lithium-ion battery instead of a lipo can give you more flight time and, if you build your own, even save you money.   In this video I build a 6S Li-Ion battery using 21700 cells and take it for a test flight on the Foxeer Aura 7 quadcopter where it delivers 20 minute flight times.

Links (not sponsored or affiliate):
Where I got the batteries : https://18650batteries.nz/

The Foxeer Aura 7 BNF long-range quadcopter:
https://www.foxeer.com/foxeer-aura-7-...

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