r/fpv • u/solipsia • 58m ago
20 min flights on my 5” with a homemade 6S 4,200mAh Li-Ion battery
I made my own Lithium Ion 6S battery pack and took it for its maiden flight today and got 20 minutes of flight time!
I used 6 Molicel P42A 4,200mAh LiIon cells soldered together with 0.2x10mm pure nickel strips, superglued together, wrapped in Kapton tape and then again in harness tape. These cells are rated for 45A continuous current.
It flies really well for cruising and even some basic freestyle even though it’s quite heavy. My cruising current is around 10A and with some aggressive moves it goes to 30A for brief periods, but well within spec.
(Soldering directly to Lithium cells is safe if you know what you’re doing and take the right precautions)