---
product_id: 682607601
title: "Replacement for Kobalt 40V Battery 6.0Ah, New Upgraded 5X Longer Runtime, Compatible with Kobalt 40V Cordless Power Tool, for 40V Max Battery KB440-03 KB2540C-06 KB240-03 KRC60"
brand: "xavito"
price: "764 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Xavito"
url: https://www.desertcart.ro/products/682607601-replacement-for-kobalt-40v-battery-6-0ah-new-upgraded-5x
store_origin: RO
region: Romania
---

# 5X Longer Runtime 6.0Ah High Capacity Smart BMS Multi-Protection Replacement for Kobalt 40V Battery 6.0Ah, New Upgraded 5X Longer Runtime, Compatible with Kobalt 40V Cordless Power Tool, for 40V Max Battery KB440-03 KB2540C-06 KB240-03 KRC60

**Brand:** xavito
**Price:** 764 Lei
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Productivity — Don’t Let Battery Life Hold You Back!

## Quick Answers

- **What is this?** Replacement for Kobalt 40V Battery 6.0Ah, New Upgraded 5X Longer Runtime, Compatible with Kobalt 40V Cordless Power Tool, for 40V Max Battery KB440-03 KB2540C-06 KB240-03 KRC60 by xavito
- **How much does it cost?** 764 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/682607601-replacement-for-kobalt-40v-battery-6-0ah-new-upgraded-5x)

## Best For

- xavito enthusiasts

## Why This Product

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

## Key Features

- • **Safety You Can Trust:** Advanced BMS safeguards against short circuits, overcharging, and overheating, certified by UL, IEC, FCC and more for peace of mind.
- • **Seamless Compatibility:** Perfectly fits 45+ Kobalt 40V tools and works flawlessly with Ryobi 40V chargers for effortless tool swapping and zero downtime.
- • **Built to Last 1200+ Cycles:** High-density cells ensure over 5 years of reliable power with minimal self-discharge, keeping you powered season after season.
- • **Power Through Your Projects:** Upgraded 6.0Ah lithium-ion battery delivers 5X longer runtime than standard 2.0Ah packs, so you finish faster without interruptions.
- • **5-Year Worry-Free Protection:** Enjoy a full 5-year warranty with free returns and replacements, backed by dedicated customer support to keep you moving.

## Overview

The XAVITO Replacement Battery for Kobalt 40V tools is a high-capacity 6.0Ah lithium-ion pack engineered for 5X longer runtime and over 1200 charge cycles. Fully compatible with 45+ Kobalt 40V cordless tools and Ryobi chargers, it features smart BMS multi-protection and is certified safe by multiple global standards. Backed by a 5-year warranty, it’s the ultimate upgrade for professionals and DIYers seeking reliable, long-lasting power.

## Description

desertcart.com: XAVITO Replacement for Kobalt 40V Battery 6.0Ah, New Upgraded 5X Longer Runtime, Compatible with Kobalt 40V Cordless Power Tool, for 40V Max Battery KB440-03 KB2540C-06 KB240-03 KRC60 : Tools & Home Improvement

Review: Fits my lawn mower - I only have the Kobalt battery powered lawn mower and the battery it came with was kind of trash. It never really lasted that long. Thinking it might be the lawn mower, I bought this battery to test it. Not only does this battery help but it was literally just the battery that came with my lawn mower. This battery allows me to do all of my front and backyard without me having to stop in the middle of doing each to recharge it. This thing packs a punch on power and like mentioned above, allows me to finish all of my yard work without having to make a half a day job be a 2 day job. I will be buying the trimmer and this battery will definitely come in handy. Definitely a great buy and worth the amount I paid!
Review: Perfect replacement! Great Value! - I got this battery to have as a backup for my Kobalt 40V battery. It's great to have an extra, so I can use two items without having to switch the batteries back and forth. It seems very durable and pretty much identical to the name brand one. Obviously this one is at a much better price. It's a great value! It fit perfectly into my kobalt tools. Battery quality and capacity seems very similar to my name brand one. It also charged right up with my Kobalt charger. I've used it / charged it a handful of times now and still working well.

## Features

- 🌟 [New & Improved for 5X Longer Runtime]: The upgraded replacement for Kobalt 40V lithium battery offers up to 5X the runtime of the original 2.0Ah 40V battery. Model: KB440-03 | Type: Lithium-ion | Voltage: 40V | Capacity: 6000mAh | Wattage: 240Wh
- 🔋 [Replacement for Kobalt 40V Battery]: Perfect replacement for Kobalt 40V battery KB440-03 KB640-03 KB240-06 KB240C-06 KB640-06, etc. Ensures a seamless fit with Ryobi 40V chargers KRC60-06 KRC40-06 KRC 840-03, etc. 100% compatible with 45+ Kobalt 40V tools, Makes Your Tools 5X Runing Time
- ⚡ [5X Longer Life & 1200+ Cycles]: The XAVITO battery upgrade features high-density cells with 5X the lifespan of standard cells, lasting over 1200 charge cycles with only 1% self-discharge, and is built for 5 years of reliable performance
- 🏅 [BMS Protection & Certified Safe]: The 40V battery with smart BMS and multi-protection, it safeguards against short circuits, overcharging, over-voltage, and overheating, ensuring reliable power and peak performance in any weather. All XAVITO battery is fully certified (𝐔𝐋, 𝐈𝐄𝐂, 𝐌𝐒𝐃𝐒, 𝐔𝐍𝟑𝟖.𝟑, 𝐅𝐂𝐂, 𝐂𝐁, 𝐏𝐒𝐄)
- 📞 [5-Year Protection & Support]: The XAVITO replacement for kobalt 40v max battery comes with a 𝟓-𝐲𝐞𝐚𝐫 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧, with free return and replacement. If you have any questions, simply click "𝐀𝐬𝐤 𝐀 𝐐𝐮𝐞𝐬𝐭𝐢𝐨𝐧" on our storefront or "𝐂𝐨𝐧𝐭𝐚𝐜𝐭 𝐒𝐞𝐥𝐥𝐞𝐫" under "𝐘𝐨𝐮𝐫 𝐎𝐫𝐝𝐞𝐫." We're dedicated to providing you with a 5-star shopping experience!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DHZHGC5L |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #54,886 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #447 in Cordless Tool Battery Packs |
| Customer Reviews | 4.5 4.5 out of 5 stars (162) |
| Date First Available | September 26, 2024 |
| Item Weight | 2.6 pounds |
| Item model number | KB440-03 |
| Manufacturer | XAVITO |
| Product Dimensions | 6.6 x 4.3 x 1.9 inches |

## Product Details

- **Battery Capacity:** 6000 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** XAVITO
- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Recommended Uses For Product:** Power Tool

## Images

![Replacement for Kobalt 40V Battery 6.0Ah, New Upgraded 5X Longer Runtime, Compatible with Kobalt 40V Cordless Power Tool, for 40V Max Battery KB440-03 KB2540C-06 KB240-03 KRC60 - Image 1](https://m.media-amazon.com/images/I/8173adcSpyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fits my lawn mower
*by R***A on November 24, 2025*

I only have the Kobalt battery powered lawn mower and the battery it came with was kind of trash. It never really lasted that long. Thinking it might be the lawn mower, I bought this battery to test it. Not only does this battery help but it was literally just the battery that came with my lawn mower. This battery allows me to do all of my front and backyard without me having to stop in the middle of doing each to recharge it. This thing packs a punch on power and like mentioned above, allows me to finish all of my yard work without having to make a half a day job be a 2 day job. I will be buying the trimmer and this battery will definitely come in handy. Definitely a great buy and worth the amount I paid!

### ⭐⭐⭐⭐⭐ Perfect replacement! Great Value!
*by S***D on September 14, 2025*

I got this battery to have as a backup for my Kobalt 40V battery. It's great to have an extra, so I can use two items without having to switch the batteries back and forth. It seems very durable and pretty much identical to the name brand one. Obviously this one is at a much better price. It's a great value! It fit perfectly into my kobalt tools. Battery quality and capacity seems very similar to my name brand one. It also charged right up with my Kobalt charger. I've used it / charged it a handful of times now and still working well.

### ⭐⭐⭐⭐⭐ Replacement for Kobalt 40V Battery
*by H***E on September 9, 2025*

In my experience, I have been able to do more extensive outside tasks, such as pruning hedges and clearing brush, without having to stop in the middle of the process to recharge my batteries. I used to have to replace batteries or take pauses to recharge, but now I am able to perform the same chores in a single sitting. Because of this change alone, my weekend tasks have become more streamlined and productive, and the irritation that I had as a result of interruptions while I was working has been eliminated. Using it on my cordless trimmer, leaf blower, and chainsaw, I have found that it has worked reliably without causing any performance degradation in any of these tools. This battery was able to keep everything going for a longer period of time than was anticipated, even when used with more demanding items like the chainsaw, which typically consumes power very rapidly. This consistency makes a significant impact for someone who regularly changes between tools while working on the same project. In spite of the fact that I had anticipated that it would take more time due to the bigger capacity, I discovered that it charges within a decent amount of time and is ready whenever I want it. After I have finished a job, I will typically plug it in, and by the time I need it again, it will have been completely charged and ready to take action. Due to the battery's dependability in ensuring that it is always available for use, the stress associated with planning around charging schedules has been eliminated.

## Frequently Bought Together

- XAVITO Replacement for Kobalt 40V Battery 6.0Ah, New Upgraded 5X Longer Runtime, Compatible with Kobalt 40V Cordless Power Tool, for Kobalt 40V Max Battery KB440-03 KB2540C-06 KB240-03 KRC60
- Kobalt 40-Volt Lithium Ion (Li-Ion) Generation 2 Compact Cordless Power Equipment Battery Charger with New Top Load Design, 2019 Model

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**Shop now:** [https://www.desertcart.ro/products/682607601-replacement-for-kobalt-40v-battery-6-0ah-new-upgraded-5x](https://www.desertcart.ro/products/682607601-replacement-for-kobalt-40v-battery-6-0ah-new-upgraded-5x)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-16*