I am building 10s6p battery pack with 18650 cells from old laptops.
Series packs must use identical cells, and you must use a balancing charger... Get this wrong
with lithium cells are you'll risk starting a fire.
I have read somewhere that if additional cells added at the end of battery pack it will increase capacity and performance.
Sounds like nonsense to me. You can produce a higher voltage, but not capacity or performance, thats
a property of the weakest cell in the chain (and as mentioned above, you don't want any weak cells in the
My question is;
What happenes if we build a battery pack with
Total pack will be 10s.
Clearly 5S is series with 10S is 15S, but you've broken the essential rule of building batteries of cells,
everything must be matched.
The reason for this is to merge and use capacity of weak and unstable cells instead of throwing them away.
Not with lithium you don't, that is flipping dangerous