---
product_id: 58646849
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: "$50.26"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/58646849-3-0ah-12v-max-replacement-battery-for-dremel-b812-03
store_origin: US
region: United States of America
---

# 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:** $50.26
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your precision with the battery that keeps up with your hustle!

## 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?** $50.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/58646849-3-0ah-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

- • **Certified Reliability:** CE, FCC, PSE, RoHS certified for safety and durability you can trust.
- • **Lightweight & Compact:** Weighs just 168g for easy handling and reduced fatigue on the go.
- • **Power Through Projects:** 3.0Ah capacity delivers extended runtime for uninterrupted work sessions.
- • **Seamless Compatibility:** 100% fits Dremel B812-01/02/03, 8200, 8220, and 8300 tools—no hassle, just power.
- • **Fast Recharge, Less Downtime:** Supports quick charging with original adapters to keep you moving.

## Overview

This 3.0Ah 12V Max rechargeable lithium-ion battery 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 DIY and professional projects.

## Description

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

## 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.
- 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 |
|---------------|-------|
| Item Dimensions | 3.31 x 1.85 x 1.88 inches |
| Item Weight | 0.17 Kilograms |
| Battery Weight | 168 Grams |
| Unit Count | 1 Count |
| Battery Cell Type | Lithium Ion |
| Recommended Uses For Product | Vacuum Cleaner |
| Reusability | Rechargeable |
| Battery Capacity | 3000 Milliampere Hour (mAh) |
| Amperage | 3 Amps |
| 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

## 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)

## Available Options

This product comes in different **Style** options.

## 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

## 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

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-22*