Chamberlain Liftmaster Replacement Evercharge Battery Back Up

$39.95

Compatible replacement for LiftMaster, Chamberlain, and Craftsman openers with existing battery back up.
* You will know it needs to be replaced if your opener is beeping every 15-20 seconds, indicating a bad battery

Weight 2.4 lbs
Dimensions 3 × 3 × 4 in