This is one of those purchases that, as a photographer, make your life much easier and take a weight off your shoulders (literally). If you have a Lumix S or any of the recent GHs, you know full well that the original Panasonic batteries aren't exactly cheap, and charging with the external wall charger is just another clutter in your backpack.

K&F has hit the nail on the head with this battery pack. What really makes the difference here is not only that they work well, but the USB-C port built into the battery itself. It seems like a silly detail, but it's a total liberation. You can charge them in the car, with a powerbank while walking or directly with the same cell phone cable. No more arriving at the hotel and having to find a free plug for the official charger.

In terms of performance, to be honest, they tend to perform on par with the originals. With the 2500mAh capacity, I haven't noticed a drop in performance that makes me distrust them in the middle of a job. The camera recognizes them without problems, marks the real percentage and they don't give those strange jumps of energy that sometimes happen with white marks of dubious origin. Charging from zero to one hundred in about two and a half hours via USB-C is simply what the standard should be today.

For what a pack of two costs, you have the peace of mind of having plenty of energy for a whole day of shooting or intense photos. Considering that a single original battery costs you almost twice as much, this pack is a mandatory purchase for any Lumix user who values their time and convenience.

Five stars, because you can't ask for more from an accessory of this type. Buy teacher.