--- product_id: 688675675 title: "3.7V 10500mAh Battery for Eufy S330 E330" brand: "nastima" price: "223 zł" currency: PLN in_stock: true reviews_count: 13 category: "Nastima" url: https://www.desertcart.pl/products/688675675-3-7v-10500mah-battery-for-eufy-s330-e330 store_origin: PL region: Poland --- # Fast USB charging 5V 2A max 10500mAh high-capacity Multi-layer safety protections 3.7V 10500mAh Battery for Eufy S330 E330 **Brand:** nastima **Price:** 223 zł **Availability:** ✅ In Stock ## Summary > 🔐 Power your smart security with confidence and never miss a beat! ## Quick Answers - **What is this?** 3.7V 10500mAh Battery for Eufy S330 E330 by nastima - **How much does it cost?** 223 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/688675675-3-7v-10500mah-battery-for-eufy-s330-e330) ## Best For - nastima enthusiasts ## Why This Product - Trusted nastima brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power That Lasts:** 10500mAh battery keeps your smart lock running for 1-2 months without a hitch. - • **Safety First, Always:** Grade A+ cells with overcharge, discharge, short-circuit, and temperature protections for worry-free use. - • **Smart Charging Status:** Dual-color LED indicator keeps you in the know—flashing green while charging, solid green when full. - • **Plug & Play Simplicity:** Tool-free direct replacement designed for seamless swap with your eufy devices. - • **Trusted Support & Warranty:** 35-day money-back guarantee plus 1-year after-sales service ensures your peace of mind. ## Overview The NASTIMA S330 Rechargeable Battery is a high-capacity 10500mAh lithium-ion power source engineered specifically for eufy S230, S330, S220, and E330 Video Smart Locks and Smart Drop devices. Featuring a compact design, tool-free installation, and a dual-color LED charging indicator, it delivers extended runtime of up to 1-2 months per charge. Built with premium Grade A+ cells, it offers comprehensive safety protections including overcharge, over-discharge, short-circuit, and temperature safeguards. Backed by a 35-day money-back guarantee and 1-year after-sales support, it’s the reliable power upgrade your smart security setup deserves. ## Description desertcart.com: NASTIMA S330 Security Rechargeable Battery for eufy S230 S330 S220 E330 | for Eufy Video Smart Lock 3-in-1 and Smart Drop T8520 T8520S T8520J11 T8531 E8531JY1 T8520T11, 10500mAh Battery Replacement : Electronics Review: Battery backup - Very convenient battery I have been switching it between them around and I don’t fell it’s losses the charge fast Review: Excellent replacement for original battery - Excellent replacement for the original battery. With the smart locks on my Disney cabins I need to make sure the batteries are always functional while I’m not there and this really helped. Now my helper just swaps out batteries from fresh charged and they last about 1-2 months between changes. ## Features - ✅【Compatibility】: Fully compatible with eufy S330 S230 E330 S231 Video Smart Lock 3-in-1 and Smart Drop T8520 T8520S T8520J11 T8531 E8531JY1 T8520T11. Directly replacing the original battery does not require any tools. - ✅【Charging Indicator】: Dual color LED shows the status of charging. Flashing Green: charging; Solid Green: full charged. - ✅【Technical Specification】: Dimension:77.5*59*21mm/2.97*2.32*0.83in; Weight:170g/0.37lb. 3.7V 10500mAh high-capacity battery with 30CM USB charge cable (Only for charge, 5V 2A MAX). - ✅【Safety】: NASTIMA battery made in grade A+ cells, provide Over Charge Protection,Over Discharge Protection,Short-Circuit protection and Over-Temperature protection, let you rest assured to use. - ✅【Long-Lasting Power Solution】: High capacity 10500mAh battery ensures extended usage time for your eufy Video Smart Lock and Smart Drop devices between charges. - ✅【100% Satisfaction】: You will be 100% satisfied or we'll give you 35 days moeny back, 1 year after-sales service. If your have any problem,please contact us through desertcart, 24 hours help you solve the problem! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DQPS7RDS | | Antenna Location | Video smart lock | | Battery Capacity | 10500 milliamp_hours | | Battery Cell Composition | Lithium Ion | | Battery Cell Type | Lithium Ion | | Battery Weight | 170 g | | Best Sellers Rank | #262 in Home Security Systems | | Brand | NASTIMA | | Compatible Phone Models | Eufy S330 S230 S220 E330 Video Smart Lock 3-in-1 and Smart Drop | | Customer Reviews | 4.3 out of 5 stars 112 Reviews | | Included Components | 1*Battery+1*USB Cable | | Item Dimensions | 2.35 x 0.85 x 3 inches | | Manufacturer | QUANZHOU MELASTA NEW ENERGY CO., LTD | | Model Name | EF37-LI1050-NA | | Model Number | EF37-LI1050-NA | | Number of Batteries | 1 12V batteries required. (included) | | Recommended Uses For Product | Video smart lock | | Reusability | Rechargeable | | UPC | 782003392732 | | Unit Count | 1 Count | ## Product Details - **Battery Capacity:** 10500 milliamp_hours - **Battery Cell Composition:** Lithium Ion - **Brand:** NASTIMA - **Number of Batteries:** 1 12V batteries required. (included) - **Recommended Uses For Product:** Video smart lock ## Images ![3.7V 10500mAh Battery for Eufy S330 E330 - Image 1](https://m.media-amazon.com/images/I/61DK-tCtRdL.jpg) ![3.7V 10500mAh Battery for Eufy S330 E330 - Image 2](https://m.media-amazon.com/images/I/61uxPPI2JsL.jpg) ![3.7V 10500mAh Battery for Eufy S330 E330 - Image 3](https://m.media-amazon.com/images/I/61HN+i6PIUL.jpg) ![3.7V 10500mAh Battery for Eufy S330 E330 - Image 4](https://m.media-amazon.com/images/I/71buyb0pzDL.jpg) ![3.7V 10500mAh Battery for Eufy S330 E330 - Image 5](https://m.media-amazon.com/images/I/61MyYBT+IeL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Battery backup *by M***O on August 29, 2026* Very convenient battery I have been switching it between them around and I don’t fell it’s losses the charge fast ### ⭐⭐⭐⭐⭐ Excellent replacement for original battery *by V***N on December 13, 2025* Excellent replacement for the original battery. With the smart locks on my Disney cabins I need to make sure the batteries are always functional while I’m not there and this really helped. Now my helper just swaps out batteries from fresh charged and they last about 1-2 months between changes. ### ⭐⭐⭐⭐⭐ Battery works as it should and then some. *by B***A on November 17, 2025* this battery works great! too bad eufy won't make a few extra battery covers for holding the battery in. such a great lock, why is the cover so cheap with only two plastic tabs on a door that has to open every other day to charge. Oh, well... This was about the battery, not the @eufy The battery charged right up. Not sure how fast, as I didn't need it right away and let it charge until I did. I charged it sveral times before selling the house and had no issue whatsoever with the battery itself. ## Frequently Bought Together - NASTIMA Security Rechargeable Battery Compatible with eufy S330 S230 S220 E330 Video Smart Lock 3-in-1 and Smart Drop, 10500mAh Li-ion Battery Replacement - eufy Security Video Smart Lock S330, 3-in-1 Camera+Doorbell+Fingerprint Keyless Entry Door Lock, Smart Wi-Fi Deadbolt for Front Door, App Remote Control, SD Card Required, Chime Included --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/688675675-3-7v-10500mah-battery-for-eufy-s330-e330](https://www.desertcart.pl/products/688675675-3-7v-10500mah-battery-for-eufy-s330-e330) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-09-11*