This is a new high quality, high capacity 850 mAh Lithium ion polymer battery for the Tungsten E.  This does require soldering directly to the motherboard, it does not have a connector that plugs in.  The battery has a one year warranty through the manufacture, if it fails within 90 days then we will handle the warranty process. 

If you prefer not to install the battery yourself please see our Repair Form.   A case opening tool kit is provided as an option below.

Rating 3.7 VDC, 850 mAh