1000mAh Battery For TomTom Go 2435, Go 2535, 4CS03, 4CQ01, 4CT50, 4EN42, 4EN52 Capacity: 1000mAh Type: Li-ion Volts: 3.7V Size : 43.30 x 35.90 x 6.50mm Certificated with ISO9001, RoHS & CE;