instrument accessories BT-66 battery for Topcon RC-3/GMS-2 GPS FC-2000

instrument accessories BT-66 battery for Topcon RC-3/GMS-2 GPS FC-2000

1.BT-66Q Li-battery for Topcon  ES-600G/HIPER II

2.Voltage: 7.4V

3.Capacity:2600mAh

4.It can work for  RC-3/GMS-2 GPS FC-2000  .

5.Providing high quality power,long life,reliable quality,long working hours etc

6.with  PTC protection device,  having the function of preventing  overcharge,discharge,over current(short circuit),overheating

7.Warranty:1 year