Nokia BP-6EW Internal Battery for Lumia 900 - Original OEM - Non-Retail Packaging - Black The Nokia BP-6EW Internal Battery is specially made for the Nokia Lumia 900 phone. This battery packs 1830mAh of Li-Polymer power and will keep your phone connected and powered. Is your Nokia Lumia 900 giving your problems. Compatible with the Nokia Lumia 900 phone model. OEM Part Numbers: BP-6EW / BP6EW