Ever find that your receiver isn’t lasting as long? The receiver keeps dying at the worst of times? Extend your working time with another battery. The Hemisphere S321+ battery is just the solution for you. With 6 hours of charge, you can work without worrying about constantly having to swap the batteries in your base and rover. This is made even easier with the presence of a charge indicator built right into the battery. Never again do you have to worry about how charged the battery is, it tells you right on the battery. You now have no excuse to arrive at the work site with dead batteries and being unable to work.