The battery L.E.D display represents 100% charge, 75% charge, 50% charge, and 25% charge. When the 100% L.E.D. light goes out, this indicates the receiver has less than 100% charge left. When the 75% L.E.D. light goes out this will indicate the receiver has less than 75% charge left. When the 50% L.E.D. light goes out, this will indicate the receiver has less than 50% charge left. Finally when the 25% L.E.D. light goes out, this will indicate the receiver has less than 25% charge left.
