With normal Ni-MH batteries it gives me no longer able to use my Pentax S40 reasonable. With increasing age my camera and thus also their electronics (> 7 years), the condition deteriorated more and more. Shortly after turning already appeared the message "Low Battery".
I was very skeptical of the Li-ion PowerSet opposite, because there are few alternatives to garkeine from "reputable" manufacturers.
The positive reports have but then convinced me to buy and I did not regret it!
Finally, I can leave my camera again for days in a drawer and when I need it with fully charged battery is ready for use.