VINTRONS 3.7V Battery For INSIGNIA NS-2V17B 4GB, NS2V17R 2GB, NS-2V17 2GB, NS-4V17R 2GB, NS-4V17B 4GB Capacity: 450mAh Type: Li-Polymer Volts: 3.7V Size : 43.14 x 33.43 x 2.94mm