---
product_id: 275352258
title: "Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries"
brand: "synergy digital"
price: "€ 21.03"
currency: EUR
in_stock: false
url: https://www.desertcart.ie/products/275352258-synergy-digital-vtech-cs6129-41-cordless-phone-battery-ni-cd
store_origin: IE
region: Ireland
---

# 2.4 Volt Stable Power 700 mAh Ultra Hi-Capacity Premium Japanese Cells Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries

**Brand:** synergy digital
**Price:** € 21.03
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power your calls with premium endurance—never settle for less!

## Quick Answers

- **What is this?** Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries by synergy digital
- **How much does it cost?** € 21.03 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/275352258-synergy-digital-vtech-cs6129-41-cordless-phone-battery-ni-cd)

## Best For

- synergy digital enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Brand Assurance:** Synergy Digital’s registered trademark guarantees quality and durability for your cordless phone.
- • **Long-Lasting Power Boost:** 700 mAh capacity ensures extended talk and standby time, so you never miss a call.
- • **Seamless OEM Compatibility:** 100% compatible replacement for Sony BP-T50 and Vtech BT275242 batteries—plug and play confidence.
- • **Ultra Hi-Capacity Advantage:** Experience enhanced battery life that outperforms standard replacements—stay connected longer.
- • **Premium Japanese Cell Quality:** Crafted with high-grade Japanese cells for reliable, consistent performance you can trust.

## Overview

The Synergy Digital Vtech CS6129-41 is a high-quality Ni-CD cordless phone replacement battery delivering 2.4 volts and 700 mAh capacity. Engineered with premium Japanese cells, it offers ultra hi-capacity performance and 100% OEM compatibility with Sony BP-T50 and Vtech BT275242 models, ensuring reliable, long-lasting power for uninterrupted communication.

## Description

Buy Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- Synergy Digital Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries
- NI-CD, 2.4 Volt, 700 mAh.
- Made with high quality Japanese cells.
- 100% compatible with your OEM battery - 3 year *.
- Synergy Digital is a Registered Trademark

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Synergy Digital |
| Brand | Synergy Digital |
| Item Weight | 0.81 ounces |
| Package Dimensions | 5.2 x 2.52 x 0.12 inches |
| Item model number | BF448212 |
| Batteries | 1 Product Specific batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Number of Items | 1 |
| Manufacturer Part Number | BF448212 |

## Product Details

- **Battery capacity:** 700 Milliamp Hours
- **Battery cell composition:** NiCAD
- **Brand:** Synergy Digital
- **Number of batteries:** 1 Product Specific batteries required. (included)
- **Recommended uses for product:** Phone

## Images

![Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries - Image 1](https://m.media-amazon.com/images/I/611r-Ghd95L.jpg)
![Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries - Image 2](https://m.media-amazon.com/images/I/614inISYKcL.jpg)
![Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries - Image 3](https://m.media-amazon.com/images/I/61m2xYdeMnL.jpg)
![Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries - Image 4](https://m.media-amazon.com/images/I/71k4xhg361L.jpg)
![Synergy Digital Vtech CS6129-41 Cordless Phone Battery NI-CD, 2.4 Volt, 700 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Sony BP-T50, Vtech BT275242, Cordless Phone Batteries - Image 5](https://m.media-amazon.com/images/I/71pD5GspfTL.jpg)

---

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**Shop now:** [https://www.desertcart.ie/products/275352258-synergy-digital-vtech-cs6129-41-cordless-phone-battery-ni-cd](https://www.desertcart.ie/products/275352258-synergy-digital-vtech-cs6129-41-cordless-phone-battery-ni-cd)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-24*