This Nokia BL-5K is Original Nokia battery and it comes in the Original Nokia package. We have them in stock and we get them directly from Nokia warehouse. They are not aftermarket like most of the sellers sell, they are 100% Original Nokia product. This Nokia BL-5K is compatible with Nokia N85. Specifications: General Information Manufacturer Nokia Manufacturer Part Number 02711B0 Manufacturer Website Address www.nokiausa.com Product Model BL-5K Product Name BL-5K Lithium Ion Cell Phone Battery Product Type Cell Phone Battery Battery Information Battery Rechargeable Yes Battery Size Not Applicable Battery Chemistry Lithium Ion (Li-Ion) Battery Capacity 1200mAh

Information provided by ProductWiki, the free resource for unbiased product reviews and information.