On Order Advent Gps, Navigator Battery Li-ion Battery fits Advent,3500 3.7V, 2000mAh CS-ADV350SL $26.63 As one of the worlds most successful third party battery manufacturers Cameron Sino have been certified and approved by multiple authorities. There products are all verified and tested for safety. Its confusing we know, often due to certain data not being available this battery will fit models that we do not show in the current list. As this information... Add to cart