Sennheiser SK 50-A Instructions for use - Page 9

4.2. BA 50 / BA 250 QUICK-CHANGE ENERGY PACK The LCD display on the front side of the energy pack (Fig. 4) servers as a battery control display. FIG. 4 RECHARGEABLE BATTERY DISPLAY 100 % 80 % 60 % 40 % 20 % STARTS TO BLINK IF THE REMAINING OPERATING TIME FALLS BELOW 30 MIN. In addition to the visual display on the quick-change energy pack, the transmitter communicates the status of the batteries or the rechargeable batteries to the EM 1046 for presentation on the receiver display. FIG. 5 RELEASING THE QUICK-CHANGE ENERGIE PACK Squeeze the catch with the thumb and index finger, and separate the transmitter from the quick-change energy pack. To attach the quick-change energy pack, simply let the quick-change energy pack snap into the transmitter. 23