VINTRONS 2200mAh Battery For Sokkia SET230R, SET330R, SET530R, SET630R, SET230R3, SET330R3 Capacity: 2200mAh / 16.16.28Wh Type: Li-ion Volts: 7.4V Size : 70.30 x 38.00 x 20.10mm Certificated with ISO9001, RoHS & CE;