--- product_id: 744501366 title: "3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery" brand: "hanaix" price: "Β£3.37" currency: GBP in_stock: false reviews_count: 5 url: https://www.desertcart.co.uk/products/744501366-3-0ah-12v-max-replacement-battery-for-dremel-b812-03 store_origin: GB region: United Kingdom --- # 12V max power output 3.0Ah high capacity Quick charge compatible 3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery **Brand:** hanaix **Price:** Β£3.37 **Availability:** ❌ Out of Stock ## Summary > πŸ”‹ Power your precision with every charge! ## Quick Answers - **What is this?** 3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery by hanaix - **How much does it cost?** Β£3.37 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/744501366-3-0ah-12v-max-replacement-battery-for-dremel-b812-03) ## Best For - hanaix enthusiasts ## Why This Product - Trusted hanaix brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Certified Reliability:** CE, FCC, PSE, RoHS certified for safety and durability that professionals trust. - β€’ **Lightweight & Compact:** At just 170g, it’s easy to carry and reduces fatigue during long jobs. - β€’ **Power Through Projects:** 3000mAh capacity delivers extended runtime for uninterrupted work sessions. - β€’ **Seamless Compatibility:** 100% fits Dremel B812-01/02/03 and 8200/8220/8300 toolsβ€”no guesswork, just plug & play. - β€’ **Fast Recharge, Less Downtime:** Supports quick charging with original adapters to keep you moving at full speed. ## Overview This 3.0Ah 12V rechargeable lithium-ion battery by Hanaix is a professional-grade replacement for Dremel rotary and oscillating tools, offering long-lasting power, quick recharge capability, and full compatibility with multiple Dremel models. Lightweight and certified for safety, it ensures reliable performance for demanding projects. ## Description Replace for: (Please search with "Ctrl+F")For Dremel: B812-01, B812-02, B812-03Compatible with: (Please search with "Ctrl+F")For Dremel 8200 8220 Rotary ToolsFor Dremel 8300 Oscillating Tool Review: Effectively powers a Dremel 8200 Review: Shockingly good ## Features - Battery Type: rechargeable, Voltage: 12 Volts, Capacity: 3000mAh/3.0Ah. 100% compatible with the originals. - Quick charge with original charger and power adapter, professional replacement 12V battery for Dremel B812-01, B812-02, B812-03. Compatible with Dremel 8200 8220 Rotary Tools, 8300 Oscillating Tool. - No memory and virtually no self-discharge. Can be charged or discharged as needed without loss of capacity. Long-lasting performance and durability. - Compact and light weight batteries for easy transport, efficiently reduce your tiredness. - Batteries are CE, FCC, PSE, RoHS certified. Reach or exceed OEM product criterion. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0727VJWDY | | Amperage | 3 Amps | | Antenna Location | Vacuum Cleaner | | Battery Capacity | 3000 Milliampere Hour (mAh) | | Battery Cell Composition | Other Than Listed | | Battery Cell Type | Other Than Listed | | Battery Weight | 168 Grams | | Brand | Hanaix | | Brand Name | Hanaix | | Customer Reviews | 4.3 out of 5 stars 404 Reviews | | Item Dimensions | 8.4 x 4.7 x 4.8 Centimeters | | Item Weight Unit of Measure | 0.17 Kilograms | | Manufacturer | Hanaix | | Model Name | Lithium Ion | | Net Quantity | 1 Count | | Number of Batteries | 1 Lithium Ion batteries required. (included) | | Recommended Uses For Product | Vacuum Cleaner | | Reusability | Rechargeable | | UPC | 652042606124 | | Unit Count | 1 Count | | Voltage | 12 Volts | ## Product Details - **Number of Batteries:** 1 Lithium Ion batteries required. (included) - **Brand:** Hanaix - **Battery Cell Composition:** Other Than Listed - **Battery Capacity:** 3000 Milliampere Hour (mAh) - **Recommended Uses For Product:** Vacuum Cleaner - **Net Quantity:** 1 count - **Voltage:** 12 Volts - **Reusability:** Rechargeable - **Model Name:** Lithium Ion - **Battery Weight:** 168 Grams ## Images ![3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery - Image 1](https://m.media-amazon.com/images/I/51PrrHUjulL.jpg) ![3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery - Image 2](https://m.media-amazon.com/images/I/61zHDG5NbcL.jpg) ![3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery - Image 3](https://m.media-amazon.com/images/I/611GQVETopL.jpg) ![3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery - Image 4](https://m.media-amazon.com/images/I/71LlMmDVY3L.jpg) ![3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery - Image 5](https://m.media-amazon.com/images/I/71gZa1LNd6L.jpg) ## Questions & Answers **Q: Can I charge it with 220 V??** A: Don't think so. Charging calls for 110v in the charger (US) Would check voltage requirement. **Q: Is this a good replacement for dremel B814-01?** A: I is a great replacement for my Dremel battery pack No. 855-02. **Q: Is this compatible with Dremel model 8260?** A: I have the Dremel model 8260. This battery does NOT work in this model of Dremel. It fits the charger ok and seems to charge alright but the tool absolutely will not turn on with this battery installed and charged. The info on the original battery lists the battery # as B816-01. That is not the # listed on this Hanaix. **Q: does this work with Dremel 8250 tool?** A: This battery works great for the Dremel 8220 that I have. You might want to check their website and ask if its compatible with the 8250. From what I've seen it won't work. Hope this helps ## Customer Reviews ### ⭐⭐⭐⭐⭐ Effectively powers a Dremel 8200 *by A***R on 21 March 2025* ### ⭐⭐⭐⭐⭐ Shockingly good *by R***B on 5 June 2025* ### ⭐⭐⭐⭐⭐ More battery life at half the price *by J***L on 29 June 2020* ## Frequently Bought Together - Hanaix 3.0Ah 12V Max Replacement Battery for Dremel B812-03 B812-02 8200 8220 8300 B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery - Dremel 8250-5 12V Lithium-Ion Variable Speed Cordless Rotary Tool with Brushless Motor - 5 Rotary Tool Accessories, 3Ah Battery, Charger, and Tool Bag - Dremel 4486 Keyless Chuck - Ideal for 1/32” (0.8mm) to 1/8” (3.2mm) Shank Rotary Tool Accessories --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/744501366-3-0ah-12v-max-replacement-battery-for-dremel-b812-03](https://www.desertcart.co.uk/products/744501366-3-0ah-12v-max-replacement-battery-for-dremel-b812-03) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-18*