No, it's when a builder begins who hasn't learnt enough. You're trying hard but you're repeating your questions several times and you're not absorbing answers. We enjoy pushing boundaries and we all wish for you to succeed but unfortunately someone has to say this very clearly Battery fires aren't ordinary and you evidently haven't the background knowledge to guide and protect you. If you recognise you're "often unlucky" it's better to find someone with experience to build this for you.By the way, what is the most dangerous part of the battery build? Is it when I connect the BMS and it starts to equalize the cells?