Check the listing for details. S330 Battery For Eufy Security Smart Locks & Delivery Boxes 10500mAh. Condition: New. Listed at 17.10 USD. Brand New S330 Battery For Eufy Security Smart Locks & Delivery Boxes 10500mAh. Details: 【Upgraded to 10500mAh High Capacity】The superb battery capacity of 10500mAh 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℃). 【Wide compatibility】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 【Easy to use】Battery installation and removal requires no tools, no need to remove the doorbell from the door, the battery comes with a 17.3-inch type-c charging cable.