Ampster
Renewable Energy Hobbyist
Perhaps "proper" was not the best choice of words. I think it is an optimal way to top balance for DIYers but by no means the only way. Whatever the manufacturers do works for them and the purchasers of those batteries. They have the equipment to bin and match cells easily. Cells that are matched in capacity are inherently balanced at least in the beginning.You should pass this information on to the manufacturers of millions of battery packs that have not been parallel top balanced.