12000mAh Rechargeable Battery for eufy Security S220 S230 S231 S330 E330 3-in-1 Video Smart Door Lock E31 and Smart Drop, T8520 T8520S T8520J11 T8531 E8531JY1 T8520T11 Security Smart Lock

Additional Details from the Manufacturer

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• Parameters: 3.7V-44.4Wh/12000mAh. Battery capacity of 12000mAh battery ensures that your security system runs uninterruptedly! Upgraded thickened battery cell, it can work in the temperature range of22°F to 158°F(-30℃ to 70℃).
• Compatibility with Rechargeable S330 battery are Fully compatible with eufy Security S330/E330 3-in-1 Video Smart Lock, S230/S231/S220 Smart Lock，Smart Drop(T8790),Security Smart Lock Touch（T8520T11）,T8520 T8520S T8520J11 T8531 E8531JY1
• Compatibility with eufy security S330 S230 S220 E330 3-in-1 Video Smart Lock, Smart Lock Touch & Wi-Fi (Black/Silver, Model T8520) and Smart Drop, Smart Delivery Box.
• Large Capacity: 12000 mAh ultra-large capacity rechargeable battery ensures long time continuous operation.
• Easy to use: You don't need to remove the smart lock from the door, just take out the battery to charge the battery. Input: 5V/2A
• Multiple circuit protection: over-charging, over-power,short-circuit, high-temperature,over voltage and battery PTC protection
• Package Contents: 1x rechargeable battery, 1x USB charging cable.
• 1 year Warranty. If your have any problem,please contact us through Amazon, 24 hours help you solve the problem!