I give 4 stars because the battery has less power than the one specified, otherwise 5 stars would be appropriate. The battery has a viable substitute.
When I finally buy two of them, I'm priced at little more than half the original battery, but have about 50% more power.
In addition comes: under normal conditions keeps the camera much longer than their indicated 540 photos.
I get about 500 pictures already with this battery, with the originals even nearly 700 (including many photos with flash and video).
Pro:
+ Low (almost costs only 1/4 of the original battery)
+ Good price / performance ratio
+ Works flawlessly with Lumix FZ200
Contraindications:
- Less power than indicated (about 25% less)