Am a little surprised by the price / performance

I had bought the set primarily because of the location device since Sony's now gone over to load only via micro USB - what's really inconvenient if you film for example, much => The RX100 "booze" the battery as soon empty because you can hardly say "flap, Scene 1". That's why a second battery is always good, just stupid when you can load it in your camera. Because within a couple of hours one needs to have a few battery's.

So quickly sought an alternative and found here - the set of 2 replacement batteries, the part does not cost nearly as much as a single original Sony battery pack alone.

When I then also my original battery had lost, I had inevitably both from the set "more burden". And surprisingly, the good work - sometimes I have the feeling that when you turn the display on the load on the display takes a little longer than the original battery. And the charge keeps something less than the original, but this is negligible.

And the charger runs and runs. It is very easy, but well made.

So far I can say that I had with the set really lucky - more performance for the money was not to be expected.