Buy on Amazon.com : http://www.amazon.com/gp/product/B00B7BKNQ2?tag=lottalatte-20 <br /> <br />Rechargeable Birdog Satellite Meter Battery for Version(s) 2.5 / 3 / 4 SBP234 <br /> <br />Compatible with Birdog Version 25 3 and 4 <br />3300 mAh of power <br />6 cell NiMH battery pack <br />Dimension26L X 177W X 177H
