Levo Gen 2 Backpack to carry spare levo battery?

[Manxbiker]

Can anyone recommend a good bag that takes the Levo battery, I've e seen the video rob has put up using the evoc fr trail e ride, but it doesn't look a very good fit and seems to stretch the bag

 

[davarello]

It will fit in an Osprey Talon 44 in Large with the guard still attached. Pack has a floating top to handle the length.