Cameron Sino Technology Limited was founded in 2000 in Hong Kong, over 15 years battery manufacturing experience, and sell well in Europe and America. Compatible model NO: Trimble S3 Total Station S5 Total Station S6 Total Station S7 Total Station S8 Total Station VX Total Station SPS610 Total Station SPS620 Total Station SPS700 Total Station SPS710 Total Station SPS720 Total Station SPS730 Total Station SPS930 Total Station RTS633 Total Station RTS655 Total Station RTS773 Total Station RTS873 Total Station RTS573 Total Station S9 HP Total Stations SPS630 SPS930 RTS655 RTS873 Compatible Battery Part Number: Trimble 79400 99511-30 Specifications: Voltage:11.1V Rate:57.72Wh Type:Li-ion Capacity:5200mAh Net Weight: 323.0g / 11.39oz Gross Weight:473.0g / 16.68oz Size:126.00 x 74.30 x 25.10mm If you are not sure, please send email to us with your battery details or pictures, we will give you professional suggestions, and we will reply within 24 hours.