05/05/26 17:19:24 31SNA600 0090 Remote Transmitter BATTERY TAB 3. Inside the transmitter, separate the inner cover from the keypad by releasing the two tabs on the cover. 4. Remove the old battery from the back of the inner cover, and note the polarity. Make sure the polarity of the new battery is the same (+ side facing down), then insert it into the back of the cover. Instruments and Controls As required by the FCC: This device complies with Part 15 of the FCC rules.