Cameron Sino Rechargeble Battery for Garmin Nuvi 2597 LMT (1000mAh/3.7Wh) Type: Ni-MH, Volts: 3.7V, Capacity: 1000mAh/3.7Wh Dimension: 53.36 x 34.18 x 5.38mm, Weight: 50.0g All Products are Certificated with ISO9001, RoHS & CE 14 Days Money Back Guarantee and 12 Months Warranty