I am in a similar situation, and I am interested in how you are solving it, I have a first gen RS, xt60 2 pin, and I recently acquired a third pack of 900wh Samsung 50e, I assume because of the mt60 triangle connector it is from an exn, my goal is to be able add this package and raise the RS to 2700wh, I hope to be able to do it, I will follow the thread closely, thank you, keep inspiring🤜🤛✌️