This backpack is perfect for walking around only. Most airline companies limit their hand luggage to 8kg or 18lbs, anyway. Please mind that our eVscope weighs 9kg and our backpack 2kg. Moreover, the backpack size (72 x 22.5 x 29 cm) does not fit the hand luggage requirements, it's slightly longer.
Now, we do not recommend putting your eVscope simply in the backpack in checked luggage, there is a huge chance it might be damaged. Our team uses rigid cases while traveling to make sure that their eVscopes are perfectly safe. Last but not least, lithium-Ion batteries under 100 Wh can be carried in checked baggage as part of portable electronic devices, without any problems.