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Batteries
Batteries will degrade over time depending on temperature and usage. The operator alarm will beep 3 times with a command if the battery is low. Batteries
do not perform well in extremely cold temperatures. For best performance, the batteries should be replaced every 3 years. Use only LiftMaster part
29-NP712 for replacement batteries. The batteries contain lead and need to be disposed of properly.
The operator comes with one 7AH battery. One 33AH Battery (A12330SGLPK), 33AH Battery Harness (K94-37236) with additional battery tray (K10-
36183) may be used in place of the 7AH battery.
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