VINTRONS Replacement Battery for Garmin 361-00056-00 for Nuvi 30, Nuvi 40, and Nuvi 50 Series Capacity: 1100mAh / 4.07Wh Type: Li-ion Volts: 3.7V Size : 54.92 x 34.10 x 5.56mm Certificated with ISO9001, RoHS & CE;