Nikon BC-60 Ni-MH Battery

Nikon BC-60 clip-on battery For DTM-400/300/310 series Total Stations (for use with Q-70U/E chargers)
Manufacturer: Nikon
Manufacturer part number: HQH05100
$440.00
$408.57

BC-60 provides about 7.3 hours of continuous operation for distance/angle measurements.