hello all... Im a noob obviously.... Mountain biker turned e mountain biker... Just bought a TREK RAIL 5 and have a technical question if anyone can help... After first ride in the scottish dust ie mud and wet i hosed bike down and seem to have muddy water in the battery compartment on frame and battery... ? i thought battery would be well sealed off from water etc... Like even a rubber seal around frame? It was dark when i washed it and dont recall any rubber seal... Any advice would be most welcome, cheers