5BATTERY CHARGING2N Battery installationBefore installing, or replacing the batteries, hold down [ ]for 1 second to turn the power OFF.q Remove the battery cover from the receiver.LatchwInstall 2 R6 (AA) size Ni-MH batteries.• Be sure to observe the correct polarity.N Caution• R DANGER! NEVER short the battery terminals (or charg-ing terminals). Also, current may flow into nearby metalobjects such as a necklace, so be careful when placingbatteries (or the receiver) in handbags, etc.Simply carrying with or placing near metal objects such asa necklace, etc. may cause shorting. This may damage notonly the batteries, but also the receiver.• R DANGER! NEVER incinerate used batteries. Internalbattery gas may cause an explosion.• R DANGER! NEVER immerse the batteries in water. If thebatteries become wet, be sure to wipe them dry BEFOREinstalling them to the receiver.• When installing batteries, make sure they are all the samebrand, type and capacity. Also, do not mix new and old bat-teries together.• Never use batteries whose insulated covering is damaged.• Keep battery terminals clean to avoid rust or misscontact.It’s a good idea to clean battery terminals once a week.D Caution for the Ni-MH batteries• CAUTION: Always use the batteries within the speci-fied temperature range, –5˚C to +60˚C (+23˚F to +140˚F).Using the batteries out of their specified temperature rangewill reduce the battery’s performance and battery life.