4 Does what it says on the pack1madtam | 17/05/2011 | See all 1madtam's reviews (10)This arrived promptly from picstop and is exactly what it says it is. Inov8 have a decent reputation as aftermarket battery producers and on the strength of this I have no reason to question this reputation. The battery fits perfectly and in the brief time I have had it has worked fine giving the expected power. It is a fraction lower power than the original 750mAh but in practice I can't tell the difference. Using it with an XZ-1 I don't have a separate charger so it has to be charged in the camera but having a spare to swap in is a massive bonus at the low price. The manufacturers original is just too expensive for me.