This item is Brand New in Bulk Plastic Packaging. This battery is non-OEM; however, we personally guarantee all of our batteries not to be DOA (dead on arrival). With this kind of guarantee, you have absolutely nothing to worry about.  The picture about was taken in our studio and is identical to the battery you will receive.  Our batteries are made to ensure maximum performance saving you time and money.

VOLTAGE: 3.7V   
No Memory Effect
Lithium Ion Battery

Compatible Phones:  Sony Ericsson BST37 K700 K770i K750 K750i K800 K800i K850 K850i W800 W800i W600 w600i S500i Z525 Z525a Z520i