Sailfly-X Battery Holder

I found that the battery holder the Sailfly-X comes with is a tad too loose to keep the battery in place during crashes, so I designed this real quick. It keeps the Happymodel and RDQ 300mah 3S batteries nice and snug, but it's not too tight that it's hard to get in and out.

I replaced the plastic screws and nuts that came pre-installed with stainless steel M2x16 bolts and nuts.