if cells are not touching, you don’t need fishpaper there. However, you need it between nickel and cells if there is voltage difference between them, also between cells or nickel and balance wires. It mostly depends on design of your battery
if cells are not touching, you don’t need fishpaper there. However, you need it between nickel and cells if there is voltage difference between them, also between cells or nickel and balance wires. It mostly depends on design of your battery