Definitely take spare battery

I would not say much about the pricing policy, which have already done to others. My type of camera Lumix rejects favorable batteries from other suppliers.
So I reluctantly bought another battery.
The camera was then used in a three-week vacation every day. Whenever then was empty on a tour of the battery, was able to work with the identical second battery further.
So I have nothing left unfotografiert - No Frustration!