The Power Stick is a carbon fiber extension rod with a built-in high-capacity battery. It enables your GPS receiver to operate for an extended period without the hassle of external battery packs. Its 10,000 mAh lithium-ion battery has a capacity nearly five times that of the built-in batteries of / for Trimble & for Topcon devices. It can be used on both the base station and the rover, and the LED battery indicator allows you to accurately monitor the remaining battery power The 5/8X11 thread design makes it compatible with all receivers and survey accessories. 7 Pin for Trimble R4 R6 R8 5800 7 Pin power cables designed specifically for Trimble GPS receivers, for Trimble R4, R6, R8 5800 SPS GPS GNSS receivers 7 Pin also for CHCNAV T300, for SINO GNSS Receiver Package includes: Power Stick, battery adapter, Charger cable and a power cable