UPDATE: After prolonged use I have given the product another star because my ordered directly in China second battery (always very neat indicating the remaining charge and obviously longer held up) is now broken, after only a few weeks use. This one is still running, now felt more with 75% of the battery life of the original.
Well, he jumps quickly from 100% to empty, but rather as if a battery is defective quickly.
Conclusion: Lower prices than the original battery by Sony, not quite as good, but satisfactory.