Battery2go - 1 year warranty - 3.7V Battery For Delphi EPNN9155A, TXM1000, MyFi, 9S0227, TXMBT01, 990227, MyFi XM2GO Capacity: 2000mAh / 7.4Wh Type: Li-ion Volts: 3.7V Size : 78.10 x 51.54 x 6.72mm Certificated with ISO9001, RoHS & CE;