What is martingale?
This is an automatic increase in the volume of each extra order by a factor of 1.05 to 2. So every subsequent extra order will have bigger volume than the previous one. It helps regain the value lost during unfavourable market conditions.
We choose martingale = 2 :
First order - $100, first extra order - $200, second extra order - $400, etc.
This is a high-risk option best used by experienced cryptocurrency traders: you may have more benefits but you have bigger sum of your funds involved in the deal.