--- product_id: 58646849 title: "3.0Ah 12V Max Battery for Dremel B812-03 B812-02 8200 8220 8300 | B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery" brand: "hanaix" price: "178.54 DT" currency: TND in_stock: true reviews_count: 8 category: "Hanaix" url: https://www.desertcart.tn/products/58646849-3-0ah-12v-max-battery-for-dremel-b812-03-b812 store_origin: TN region: Tunisia --- # 12V max power output 3.0Ah high capacity 100% Dremel compatibility 3.0Ah 12V Max Battery for Dremel B812-03 B812-02 8200 8220 8300 | B812-01 Rotary Oscillating Cordless Tools for Dremel 12V Battery **Brand:** hanaix **Price:** 178.54 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power up your Dremel, power up your productivity! ## Quick Answers - **What is this?** 3.0Ah 12V Max 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?** 178.54 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/58646849-3-0ah-12v-max-battery-for-dremel-b812-03-b812) ## 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 - • **Fast & Safe Charging:** Supports quick charging with original adapters plus built-in overcharge and discharge protection. - • **Lightweight & Portable:** Compact design at just 168g reduces fatigue and makes tool transport effortless. - • **Seamless Compatibility:** Perfectly fits Dremel B812-01/02/03 and 8200/8220/8300 tools for hassle-free replacement. - • **Certified Quality & Support:** CE, FCC, RoHS certified with 12-month warranty and responsive 24/7 customer service. - • **Power Through Your Projects:** 3.0Ah capacity delivers extended runtime to keep you working longer without interruptions. ## Overview This 12V 3.0Ah lithium-ion replacement battery is engineered for Dremel rotary and oscillating tools, offering long-lasting power, fast charging, and full compatibility. Certified for safety and durability, it ensures professional-grade performance with minimal self-discharge and no memory effect, backed by a 12-month warranty and dedicated customer support. ## Description Product description 12V Li-ion Battery for Dremel B812-02 B812-03, Works with Dremel 8200 8220 8300 12V Rotary Power Tools All the 12v Dremel Li-ion Battery are made with the highest quality materials and all products are CE/FCC and RoHS certified. Advantages of this battery 1. More power last longer within one full charge than others 2. Uses the highest quality LG or SAMSUNG cells, excellent performance. 3. Provides extended run-time and optimised power to complete tasks quickly. 4. No memory effect and virtually no power discharge for maximum productivity and reduced down-time. 5. Overcharge and overdischarge protection to increase the life of the battery. 6. No pollution to the environment. Replace for: (Please search with "Ctrl+F") Dremel: B812-01, B812-02, B812-03 Compatible with: (Please search with "Ctrl+F") Dremel 8200 8220 Rotary Tools Dremel 8300 Oscillating Tool Specifications Voltage: 12V Capacity: 3.0Ah Battery Type: Li-ion Tips to make it running longer 1. Battery came with low power due to transport security, it may reach top performance after 3 cycles of full charge and discharge. 2. Recharge the battery when it totally cool down and proper rest when use in high power tools. 3. We recommend using the battery at least once a month and clean the battery contacts using a cotton swab with alcohol when necessary.About Review: good batteries - work great and last for a long workload Review: Good deal works great! - Seams like a good charger and the batteries definitely run longer than the one that came with my dremmel 8220. ## Features - Battery Type: 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. - 1 Month full refund,12months part refund or replacement for a new battery if there is any quality problem.24 hours warmly service. ## 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 | | Best Sellers Rank | #29,718 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #316 in Cordless Tool Battery Packs | | Brand | Hanaix | | Customer Reviews | 4.4 out of 5 stars 462 Reviews | | Item Dimensions | 3.31 x 1.85 x 1.88 inches | | Item Weight | 0.17 Kilograms | | Manufacturer | Hanaix | | Model Name | Lithium Ion | | 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 - **Battery Capacity:** 3000 Milliampere Hour (mAh) - **Battery Cell Composition:** Other Than Listed - **Brand:** Hanaix - **Number of Batteries:** 1 Lithium Ion batteries required. (included) - **Recommended Uses For Product:** Vacuum Cleaner ## Images ![3.0Ah 12V Max 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) ## 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 ### ⭐⭐⭐⭐⭐ good batteries *by J***T on May 11, 2026* work great and last for a long workload ### ⭐⭐⭐⭐⭐ Good deal works great! *by S***N on April 17, 2026* Seams like a good charger and the batteries definitely run longer than the one that came with my dremmel 8220. ### ⭐⭐⭐⭐⭐ Meets all expectation *by N***D on May 13, 2026* Good batteries, have lots of power when charged and charges fast. These are replacing old batteries that I have for years. Exact fit good performance and great price. ## 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? - 🛒 **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.tn/products/58646849-3-0ah-12v-max-battery-for-dremel-b812-03-b812](https://www.desertcart.tn/products/58646849-3-0ah-12v-max-battery-for-dremel-b812-03-b812) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-04*