Pico Board And 3 cell LiPo

[Jcopter]

I have a pico board and 1 pico board pro laying around, though I would go ahead and use them in some scale hummingbirds Does anyone have any experience with using 3 cell LiPos with them, I have been using 2 cell but need some weight for balance and would rather use a 3 cell instead of adding lead weight
Thanks Jack