Question about DJI Mini 2 Fly More Combo incl. microSD

You should carry the batteries in your hand luggage with all common airlines. For my Mavic Air I had 4 batteries in each case, padded with some household paper in a sealed aluminium biscuit tin. If you put them separately on the conveyor belt at security, like your laptop etc., then there are no problems there either (I never had any, but when I was too lazy to unpack them, I usually had to do it later).

You'll need to ask you airline. But they are normal lithium batteries. So I imagine that you'll have put them in your carry-on luggage.