Sony Ericsson BST-38 Battery - Fits X10 Mini Pro, C902, Jalou & Others
The battery did not succeed in powering my mobile phone. This was confirmed by the supplier of the phone who verified that the phone could be powered up with another battery.
The supplier of the battery maintains that the battery was tested AOK before despatch.
On closer examination I suspect that the fault may be a crease in the label on the battery which prevents the battery sitting properly in the phone.
The battery was returned to the supplier, but there has been no further comment from them.