21700 Battery Pack Cap Holder 6s & 4s

thingiverse

Warning!!!!! Like the18650 flight packs these 21700 are not for everyone. What is your purpose with these batteries? If you want to go fast and race, these batteries is not for you. But if you are able to manage your amp draw and fly for maximum flight time, this is perfect for you. Make sure you pick the correct 21700 cells that matches your applications. For me I am using: MOLICEL 21700 P42A 4200MAH 45A BATTERY https://www.18650batterystore.com/collections/21700-batteries/products/molicel-p42a Check out my build page on how I used these batteries to get over 25 minutes of flight time on a 7" quads: https://rotorbuilds.com/build/22522 If you plan to build these pack yourself, I would suggest using a spot weld because it would reduce the risk of damaging the cells if you over heat it. Please look on youtube for proper handling of lithium ion batteries. Update: I just added a 4s version for this battery holder.