backup power: Chamberlain 4228 EverCharge Standby Power System Replacement Battery

Chamberlain 4228 EverCharge Standby Power System Replacement Battery

List Price: $39.95

Operates the garage door opener as if the power was still on (all safety and security features still operateFor use exclusively with Chamberlain model WD962KD garage door opener

List Price: $39.95
Your Price: $18.82-
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