He also works in my brand new TZ-22 with the latest firmware 1.0
Can not report anything negative As for the capacity after 2 weeks;
purely subjective, I can not tell the difference to the original battery.
That he almost fully charged (in original packaging with protective film around the battery) arrived with me
suggests that the self-discharge rate is low, which is also a good sign.
Another "white battery" for my Canon EOS 7D has also
no weaknesses in comparison to the original battery shown. Therefore, full 5 stars.