I purchased on of these batteries on eBay for a mid price, expensive enough compared to genuine to expect it would have near to rated capacity.
Above is a pic of the battery.
They say a picture is worth a thousand words:
So, there it is, after three charge discharge cycles to develop full capacity, it measures 2.2Ah, 31% of rated capacity.
Full refund claimed, promptly processed by eBay – return label within seconds.