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Item #:
174645003
Fancy Buying 12000mAh Rechargeable Battery for eufy Security S220 S230 S231 S330 E330 3-in-1 Video Smart Door Lock E31 and Smart Drop, T8520 T8520S
Item #:
174645003
BDT 5282
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Wednesday, July 29
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12000mAh ultra-large capacity rechargeable battery ensures long time continuous operation.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Capacity
With a massive 12000mAh capacity, this rechargeable battery ensures extended usage for Eufy Security devices, reducing the need for frequent recharging and enhancing convenience for users.
Compatibility
Designed specifically for Eufy Security S-series and T-series devices, this battery guarantees seamless integration, maximizing performance and reliability for security applications in homes.
Eco-Friendly
Offering a rechargeable solution, this battery not only saves money but also minimizes electronic waste, making it an environmentally friendly choice for sustainable living.
Product Details
| Number of Batteries | 2 A batteries required. |
| Brand | Fancy Buying |
| Model Number | T8520S |
| Model Name | T8520S |
| Manufacturer | Dongguan Lewe Electronics Co., Ltd |
| Built-In Media | Battery |
| Battery Capacity | 12000 Amp Hours |
| Item Dimensions | 3.94 x 2.83 x 1.57 inches (10 x 7.2 x 4 cm) |
| Antenna Location | Smart door lock |
| Battery Cell Type | Lithium Metal |
| Battery Cell Composition | Lithium Metal |
| Recommended Uses For Product | Smart door lock |
| Country of Origin | This item will be imported from US |
| Date First Available | September 01, 2025 |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
-
Home Security Enthusiasts
Ideal for users prioritizing continuous operation of smart door locks without frequent battery changes.
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Frequent Travelers
Convenient for individuals who travel often and need a reliable battery solution for their home security devices.
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Tech-Savvy Users
Perfect for those who enjoy integrating advanced technology for enhanced security measures in their homes.
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Minimalist Users
Not suitable for users preferring simpler, battery-free security options without the need for frequent charging.
Product Description
Fancy Buying 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
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Which eufy models are compatible with this battery?
Answer: The battery is compatible with eufy T8520, T8520S, T8531, S330, S230, and several others. -
Question:
How long does it take to charge the battery?
Answer: Charging time may vary, but the battery can be charged using a 5V/2A input. -
Question:
What safety features does the battery include?
Answer: The battery includes protections against over-charging, short-circuits, high temperatures, and more.
FancyBuying Home Security Systems T8520S Editorial Review
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
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6/7/2026 · via Trustpilot
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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BDT 5282
Order now and get it around Wednesday, July 29
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Ultra-large 12000mAh battery capacity guarantees uninterrupted security system operation.
- Compatible with multiple eufy models for seamless integration.
- Works efficiently in extreme temperatures from -30℃ to 70℃.
- Easy installation and charging without removing the smart lock.
- Includes multiple circuit protection for safety and reliability.
- Comes with a USB charging cable for added convenience.
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