Up to 4 Months Battery Life</br>Extended Battery for GPS Trackers GL200 & GL300</br>Strong Magnetic Weatherproof Case</br>Rechargeable Battery - Wall Charger Included</br>Very compact: 5.43?? x 4.06?? x 2.12"br></br>Product Description</br></br>The SpySpot Extended Battery for the TT8850 Micro Tracker Miniature GPS GL 200 / GL 300 will extend the battery life of your GPS to up to a couple months and features a strong magnet on the bottom of the case. The extended battery weatherproof magnetic case includes a wall charger to recharge the battery. (GPS Tracker Not Included). Battery life will depend on motion?? location?? and interval.</br><br/>http://www.amazon.com/gp/product/B00GR9R7366m