---
product_id: 581712445
title: "4.0Ah Replacement for Bosch 18V Battery BAT609 BAT618 BAT619G BAT610G BAT612, High Output Lithium-Ion Battery Compatible with Bosch 18 Volt Cordless Power Tools Drills & Original Chargers"
brand: "wowrmaykay"
price: "$94.33"
currency: USD
in_stock: true
reviews_count: 13
category: "Wowrmaykay"
url: https://www.desertcart.us/products/581712445-4-0ah-replacement-for-bosch-18v-battery-bat609-bat618-bat619g
store_origin: US
region: United States of America
---

# 2X Runtime Boost 4.0Ah High Capacity Wide Bosch 18V Compatibility 4.0Ah Replacement for Bosch 18V Battery BAT609 BAT618 BAT619G BAT610G BAT612, High Output Lithium-Ion Battery Compatible with Bosch 18 Volt Cordless Power Tools Drills & Original Chargers

**Brand:** wowrmaykay
**Price:** $94.33
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your Bosch tools and never slow down!

## Quick Answers

- **What is this?** 4.0Ah Replacement for Bosch 18V Battery BAT609 BAT618 BAT619G BAT610G BAT612, High Output Lithium-Ion Battery Compatible with Bosch 18 Volt Cordless Power Tools Drills & Original Chargers by wowrmaykay
- **How much does it cost?** $94.33 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/581712445-4-0ah-replacement-for-bosch-18v-battery-bat609-bat618-bat619g)

## Best For

- wowrmaykay enthusiasts

## Why This Product

- Trusted wowrmaykay brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Bosch Fit:** Precision molding ensures perfect compatibility with Bosch 18V tools and chargers—no jamming, just click and go.
- • **Smart Safety First:** Built-in Battery Management System protects against overcharge, overheating, and voltage spikes for worry-free use.
- • **Backed by Confidence:** 12-month warranty and 24/7 support make this replacement battery a risk-free upgrade for pros and DIYers alike.
- • **Instant Power Insight:** Integrated LED battery level indicator keeps you informed so you never get caught off guard mid-task.
- • **Power Through Your Projects:** 4.0Ah lithium-ion battery delivers double the runtime for uninterrupted heavy-duty work.

## Overview

This 4.0Ah lithium-ion replacement battery is engineered for Bosch 18V cordless tools, offering twice the runtime of standard batteries. It features precise compatibility with multiple Bosch models, an intelligent safety system, and an LED power indicator. Designed for professionals and enthusiasts, it ensures reliable, fade-free power with a 12-month warranty and responsive customer support.

## Description

wowrmaykay 4.0Ah Replacement for Bosch 18V Battery BAT609 BAT618 BAT619G BAT610G BAT612, High Output Lithium-Ion Battery Compatible with Bosch 18 Volt Cordless Power Tools Drills & Original Chargers - desertcart.com

Review: Reliable Power for Your Tools - f you rely on Bosch 18V cordless tools for your DIY projects or professional work, having a dependable battery replacement is crucial. The Li-ion Battery Replacement for Bosch 18V offers an excellent solution to keep your tools running smoothly without interruption. This replacement battery matches the original Bosch specifications, ensuring a perfect fit and seamless compatibility. Its lithium-ion technology delivers consistent power output with minimal memory effect, so you can count on longer runtime and faster charging compared to older battery types. Whether you're drilling, cutting, or fastening, this battery provides the energy you need to get the job done efficiently. Many users appreciate the battery’s lightweight design and durable construction, which withstands regular use and handling on busy job sites. The secure connection to the tool prevents accidental disconnections, allowing for uninterrupted work sessions. Plus, the battery’s charge retention means it stays ready even after periods of inactivity. Overall, this Li-ion Battery Replacement is a smart investment to extend the life of your Bosch 18V tools. It offers reliable power, durability, and convenience at a reasonable price. If your original battery is losing charge or no longer holds power effectively, this replacement will bring your tools back to life and keep your projects on track.
Review: great replacement battery - Perfect match and same function in an off brand battery. I saved some money and haven’t had any issues arise from using this battery. Well built just like the original supplied by Bosch.

## Features

- [ WIDE COMPATIBILITY & PERFECT FIT]Professional replacement for Bosch 18V battery. 100% compatible with Bosch 18V Lithium-ion battery models: BAT609, BAT609G, BAT618, BAT618G, BAT619, BAT619G, BAT610G, BAT612, 2607336169, 2607336236. Designed with precise molding to ensure it clicks into place easily and fits all Bosch 18V cordless tools and original chargers without jamming.
- [4.0Ah HIGH CAPACITY & FADE-FREE POWER]Upgraded to 4.0Ah high capacity, this battery delivers 2X more runtime than standard batteries, allowing you to work longer on heavy-duty projects like sawing, drilling, and driving without frequent recharging. No memory effect means you can charge it at any time without losing capacity.
- [COMPATIBLE WITH 18V CORDLESS TOOLS]Powers the entire line of Bosch 18V system tools. Fully compatible with Bosch drills, hammer drills, impact drivers, circular saws, jigsaws, and grinders (Models: DDS181, HDS181, CCS180, CRS180, CFL180, and more). Bring your old tools back to life with renewed power and performance.
- [INTELLIGENT SAFETY PROTECTION]Built-in high-quality battery cells and an intelligent BMS (Battery Management System) provide multiple protections against over-charging, over-discharging, over-current, over-voltage, and overheating. Certified by CE, FCC, and RoHS to ensure safety for you and your tools during extended use.
- [USER-FRIENDLY DESIGN & WARRANTY]Features an integrated LED Battery Level Indicator that lets you monitor remaining power instantly. We stand behind our products with a 12-Month warranty and 24/7 customer support. If you have any compatibility questions, please contact us for a quick solution.
- [Value for Money]Our wowrmaykay BAT609 battery is an excellent choice for anyone looking to replace or upgrade their Bosch 18V tool batteries. Its balance of performance, durability, and cost makes it a wise investment for both professional and DIY enthusiast.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CKR3LV91 |
| Batteries | 1 D batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Capacity | 4 Amp Hours |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #33,507 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #287 in Cordless Tool Battery Packs |
| Color | Black&Red |
| Customer Reviews | 4.4 4.4 out of 5 stars (470) |
| Date First Available | October 9, 2023 |
| Included Components | Battery Pack |
| Item Package Quantity | 1 |
| Item Weight | 1.35 pounds |
| Item model number | HY-BOS-18B-L40 |
| Manufacturer | HUAYUE BATTERY |
| Part Number | BOS18B 4.0 |
| Product Dimensions | 4.53 x 2.91 x 2.43 inches |
| Size | 1 Count (Pack of 1) |
| Style | 4.0Ah |
| Voltage | 18 Volts |
| Warranty Description | 30-Day money back and 12-month warranty. |

## Product Details

- **Battery Capacity:** 4 Amp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** wowrmaykay
- **Number of Batteries:** 1 D batteries required. (included)
- **Recommended Uses For Product:** Power Tool

## Images

![4.0Ah Replacement for Bosch 18V Battery BAT609 BAT618 BAT619G BAT610G BAT612, High Output Lithium-Ion Battery Compatible with Bosch 18 Volt Cordless Power Tools Drills & Original Chargers - Image 1](https://m.media-amazon.com/images/I/61C58P8NkgL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable Power for Your Tools
*by S***N on January 11, 2026*

f you rely on Bosch 18V cordless tools for your DIY projects or professional work, having a dependable battery replacement is crucial. The Li-ion Battery Replacement for Bosch 18V offers an excellent solution to keep your tools running smoothly without interruption. This replacement battery matches the original Bosch specifications, ensuring a perfect fit and seamless compatibility. Its lithium-ion technology delivers consistent power output with minimal memory effect, so you can count on longer runtime and faster charging compared to older battery types. Whether you're drilling, cutting, or fastening, this battery provides the energy you need to get the job done efficiently. Many users appreciate the battery’s lightweight design and durable construction, which withstands regular use and handling on busy job sites. The secure connection to the tool prevents accidental disconnections, allowing for uninterrupted work sessions. Plus, the battery’s charge retention means it stays ready even after periods of inactivity. Overall, this Li-ion Battery Replacement is a smart investment to extend the life of your Bosch 18V tools. It offers reliable power, durability, and convenience at a reasonable price. If your original battery is losing charge or no longer holds power effectively, this replacement will bring your tools back to life and keep your projects on track.

### ⭐⭐⭐⭐⭐ great replacement battery
*by S***R on October 11, 2025*

Perfect match and same function in an off brand battery. I saved some money and haven’t had any issues arise from using this battery. Well built just like the original supplied by Bosch.

### ⭐⭐⭐⭐⭐ Very powerful
*by A***K on December 29, 2025*

Very powerful battery. Last long in a charge. Fast delivery. Good replacement.

## Frequently Bought Together

- wowrmaykay BAT609 Battery, 18V 4.0Ah Li-ion Battery Replace for Bosch 18V Cordless Power Tools Extended Batteries Rechargeable
- Quick BC660 BC1880 Charger for Bosch Tools 14.4V-18V Lithium Battery BAT619G, BAT619, BAT609G, BAT609, BAT618, BAT618G, BAT610G BAT614 etc.
- BOSCH GBA18V80 18V CORE18V® Lithium-Ion 8 Ah High Power Battery

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-08*