Hi. My situation is similar to this setup, but not these specific components. I'm not using solar panels, and my boosters are XL6009. Obviously the boosters are in series. My question: where "load" is, what if I want to add another booster, with higher output voltage where "load" is. How would that be wired? I have a feeling I need to provide more specifics, but I'm really looking for a general answer. Thanks guys, you have been helpful thus far.