---
product_id: 428092120
title: "CTB8185 CTB8187 2X Battery 18V 4Ah, Replace for Snap on 18V Battery CTB8185 CT7850 CTR7850H CTL7850 CTB7185 CTB8187"
brand: "cnby"
price: "£113.71"
currency: GBP
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.uk/products/428092120-ctb8185-ctb8187-2x-battery-18v-4ah-replace-for-snap-on
store_origin: GB
region: United Kingdom
---

# 4000mAh High Capacity 2-Pack Rechargeable 18V Li-ion Power CTB8185 CTB8187 2X Battery 18V 4Ah, Replace for Snap on 18V Battery CTB8185 CT7850 CTR7850H CTL7850 CTB7185 CTB8187

**Brand:** cnby
**Price:** £113.71
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your productivity, twice as fast, twice as long!

## Quick Answers

- **What is this?** CTB8185 CTB8187 2X Battery 18V 4Ah, Replace for Snap on 18V Battery CTB8185 CT7850 CTR7850H CTL7850 CTB7185 CTB8187 by cnby
- **How much does it cost?** £113.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/428092120-ctb8185-ctb8187-2x-battery-18v-4ah-replace-for-snap-on)

## Best For

- cnby enthusiasts

## Why This Product

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

## Key Features

- • **Reliable Warranty:** Backed by a 6-month warranty to keep your projects moving with confidence.
- • **Double the Runtime:** Includes two batteries so you can swap and keep working without downtime.
- • **Snap-On Compatible:** Seamlessly replaces Snap-on models CTB8185, CTB7185, CTB8187 & more for hassle-free upgrades.
- • **Power Up Your Tools:** 18V lithium-ion battery delivers consistent, long-lasting energy for peak performance.
- • **Lightweight & Portable:** At just 500g each, these batteries keep your tools balanced and easy to handle all day.

## Overview

This 2-pack of 18V 4Ah lithium-ion batteries is designed as a direct replacement for Snap-on power tool batteries including CTB8185, CTB7185, and CTB8187 models. Each lightweight battery offers 4000mAh capacity for extended runtime, compatible with a wide range of Snap-on 18V tools, and comes with a 6-month warranty for dependable performance.

## Features

- [Battery Type]: Li-ion / Volts: 18 V / Capacity: 4000mAh 72 Wh
- [Replaces For Snap on 18V Li-ion]: CTB8185 CTB7185 CTB8187 & CTC720 charger
- [Compatible with 18V Snap on power tools]: Snap on CT7850 / CDR7850H / CTL7850 / CTB7185 / CTB8185 / CTB8187.
- [Warranty]: 6 month. The package have two batteries, if you only received 1 pieces, the factory may missing 1pcs package, please contact us, we will re-send a new battery for you at once, many thanks.
- [Note]: This battery is only fit with li-ion battery. It is NOT FIT with Nicad or NI-MH, and the battery will be not charged.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Amperage | 4 Amps |
| Antenna Location | Power Tool |
| Asin | B09LM2XZPR |
| Battery Capacity | 4000 Milliampere Hour (mAh) |
| Battery Cell Type | Lithium |
| Battery Weight | 500 Grams |
| Best Sellers Rank | #250,676 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #2,675 in Cordless Tool Battery Packs |
| Brand | CNBY |
| Customer Reviews | 4.2 4.2 out of 5 stars (36) 4.2 out of 5 stars |
| Manufacturer | PowerWings |
| Model Name | ctb8185 |
| Model Number | CNBY-2XCTB8185 |
| Number Of Batteries | 2 Lithium Ion batteries required. (included) |
| Reusability | Rechargeable |
| Unit Count | 2.0 Count |
| Voltage | 18 Volts |

## Product Details

- **Battery Capacity:** 4000 Milliampere Hour (mAh)
- **Battery Cell Composition:** Lithium
- **Brand:** CNBY
- **Number of Batteries:** 2 Lithium Ion batteries required. (included)
- **Recommended Uses For Product:** Power Tool

## Images

![CTB8185 CTB8187 2X Battery 18V 4Ah, Replace for Snap on 18V Battery CTB8185 CT7850 CTR7850H CTL7850 CTB7185 CTB8187 - Image 1](https://m.media-amazon.com/images/I/715eNG66KxL.jpg)
![CTB8185 CTB8187 2X Battery 18V 4Ah, Replace for Snap on 18V Battery CTB8185 CT7850 CTR7850H CTL7850 CTB7185 CTB8187 - Image 2](https://m.media-amazon.com/images/I/5173kPoIgRL.jpg)
![CTB8185 CTB8187 2X Battery 18V 4Ah, Replace for Snap on 18V Battery CTB8185 CT7850 CTR7850H CTL7850 CTB7185 CTB8187 - Image 3](https://m.media-amazon.com/images/I/816zC13bUHL.jpg)
![CTB8185 CTB8187 2X Battery 18V 4Ah, Replace for Snap on 18V Battery CTB8185 CT7850 CTR7850H CTL7850 CTB7185 CTB8187 - Image 4](https://m.media-amazon.com/images/I/51JxL1RnqcL.jpg)
![CTB8185 CTB8187 2X Battery 18V 4Ah, Replace for Snap on 18V Battery CTB8185 CT7850 CTR7850H CTL7850 CTB7185 CTB8187 - Image 5](https://m.media-amazon.com/images/I/51vrRXq4mFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gma for four
*by  on Reviewed in the United States November 15, 2024*

My husband says they’re great

### ⭐⭐⭐⭐⭐ battery
*by  on Reviewed in the United States April 17, 2024*

exact fit 2 snapon 18volt impact it last just as long as snapon battery

### ⭐ Faulty batteries
*by  on Reviewed in the United States May 30, 2025*

One of my two batteries failed, chargers won’t detect the batteries when checking with a multimeter shows it open circuit. No charge

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**Shop now:** [https://www.desertcart.co.uk/products/428092120-ctb8185-ctb8187-2x-battery-18v-4ah-replace-for-snap-on](https://www.desertcart.co.uk/products/428092120-ctb8185-ctb8187-2x-battery-18v-4ah-replace-for-snap-on)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-15*