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Chamberlain 4228 EverCharge Standby Power System Replacement Battery, Battery Backup, Garage Door Opener Accessories 012381742288

Open Box Center

OPENED & RESEALED BOX VISIBLE BOX DAMAGE

 

  • For replacement in Chamberlain battery-backup garage door openers
  • Helps prevent lock-outs
  • Recharges automatically
  • Keeps the garage door working for up to 20 cycles when the power goes out

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Type: Lighting