About this replacement
Designed for Sokkia, Topcon devices. Compatible models include 3D Layout Navigator LN-150, CX-100, FX, iM-100, iX, Pipe Laser TP-L6, RC-5, RC-5a, SX, ES, GM-100, GT. Replacement part numbers include BDC72. Key specifications: 7.4V, 5500mAh, Li-ion.