Im sorry im new here and have limited knowledge of lipos, i see they are not waterproof and should not come incontact with water. If you wrapped them in a back then used a heavy duck tape and rtv to seal conectors would that make them safe to get a bit wet, like running in the rain etc?
I run in rain and through the occasional puddle (1-2cm deep, did-not-see-it puddle) without anything.
LiPo's are somewhat water resistant due to how they are made. The cells within the pack are sealed. You only have to worry about water in between the cells.
Whatever it is I just typed... could be wrong.