Higher capacity than the original?

Now one is accustomed highfalutin capacity information. From my own experience I can say that some producers cheat here, specify capacitance values ​​that can be accessed only under certain (foreign practice) conditions.

In order to make a true comparison, you would have:
- Both batteries repeatedly charging / discharging because only a battery brings the full power (who knows how long the batteries are already in the camp?)
- Then make a lot of "same" images, create equal conditions for the batteries
- Last look, how many pictures you can do with the one and the other battery.

Mir is too much work :-)
And the battery life says nothing of such a test (one experiences eg AA / Mignon batteries both with expensive batteries from brand manufacturers and with cheap batteries positive from the food discounters like negative surprises!).
Some talk of 3 years until the case of lithium batteries, the capacity drops sharply, in some of the battery lasts allegedly also much longer.
The original battery of my Canon G5 has now only about half of capacity, which should be now so 6-7 years old.

Ergo - the price decided.

After the first few battery charges, I can say - it holds about the same time as the original battery, whereby the use of LifeView or the flash was different, a direct comparison with exactly the same conditions it was not.