Building MILWAUKEE M12 6Ah Battery! 

Thank you so much. your video so details which encourage me trying fix it by myself.

Thank you for the video very well done, do you happen to know why the genuine 6ah/4ah packs are spot welded differently? they are (+)(+)(-) / (-)(-)(+) if looking at the bottom 3 caps, with both positives and both negatives spot welded together where as you did (-)(+) (-)/ (+)(-)(+). I don't want to destroy my pack so i haven't been able to see where and how then tabs are connected but it doesn't make sense to me as I thought series was neg to pos to neg to pos etc. I'm sure there's a valid reason for it, i just don't know it.

Hi, have you built an M12 9AH battery yet? Can you draw the cell arrangement in such a battery? Your video is very useful for building your own batteries.