I have the capacity of these batteries with the originals of Panasonic compared with a capacity of 1250 mAh also, as I have taken up permanent video. The Panasonic batteries were empty after a good 90 minutes, the two supposedly identical from Dot.Foto after 63.5 and 69.5 minutes. Even a further suitable for the TZ61 Battery, which was indicated by only 900 mAh has persevered with just over 70 minutes longer.