18650 for my AtomRC Swordfish

I decided to build an AtomRC Swordfish after having a few bad experiences with the Volantex Ranger 2400.

The Ranger as, in my opinion, a couple of issues:

• The wings plug make the connections to flaps and ailerons, hard to manage.
• The internals are hard to work on - not much space.
• There is a middle plate in wood, hard to put a controller like an INAV board. I did design a new one and printed. I can share it, pm me.

I went to the AtomRC Swordfish after checking a few youtube videos.

Plane:

I bought the plane here: https://www.banggood.com/pt/ATOMRC-Swordfish-1200mm-Wingspan-Dual-Motor-EPP-FPV-Glider-RC-Airplane-Fixed-Wing-KIT-or-PNP-or-FPV-or-RTH-or-RTH+FPV-p-1980781.html?cur_warehouse=CZ&ID=6322065

INAV Controller:

I choose this one, since I already have the Matek controller - I will be using the (EOL)Flight Controller F722-WPX – Matek Systems

Batteries:

I decided to try those batteries:

• Based on this video: https://youtu.be/pgns5UD2jw4?si=GuYe-FqWD57MQKwO
• and his batteries recommendations: https://eu.nkon.nl/rechargeable/li-ion/21700-20700-size/molicel-inr21700-p45b-4500mah-45a.html
• To secure the batteries together, I am going with this design for now: 21700 Battery Pack Cap Holder 6s & 4s by wrong17 - Thingiverse