I wrote above that each 18650 Battery costs anywere from 2 to 10 dollars.
Apparently one can get them for 1 dollar or less with 2500 mAh capacity
so an equivalent of 6S with 16000 mAh LiPo
would be a 6S7P setup (6x7) = 42 pieces (that actually has 17500 mAh)
Add the cost of a BMS (found something for around 30 dollars) plus those Vruzend Connectors ( http://www.vruzend.com ) and you are getting away with a lighter, more powerful but cheaper battery (less or equal 100 dollar)
Also: the Li-Ion have a lot longer life span than the LiPo.
and not into worrying about whether their cells are all charged and balanced.
I absolutely agree, the less I have to worry about stuff shortly before launch, the better!! am 100% with you on that !
But If you have such battery pack with BMS (Battery Management System) then there is nothing to worry about. It’s even less to worry about adding two or more of those Multistar or Bonka LiPo in parallel mode (one battery charging the other, if they don’t have equal voltage).
I watched a few videos on those 18650 batteries on one popular youtube channel, that has tons of videos about building and using those packs: https://www.youtube.com/channel/UCRMrqzsrPIWvY3PINkLKs-Q/videos
However, I am just a noob and don’t have any experience whatsoever other than a few hours of reading on the internet and watching some youtube videos.