---
product_id: 33194257
title: "Cordless Phone Battery Replacement for BT-909"
brand: "upstart battery"
price: "€ 25.52"
currency: EUR
in_stock: true
reviews_count: 9
category: "Upstart Battery"
url: https://www.desertcart.gr/products/33194257-cordless-phone-battery-replacement-for-bt-909
store_origin: GR
region: Greece
---

# 3.6V Reliable Voltage 700mAh High Capacity Rechargeable NiMH Tech Cordless Phone Battery Replacement for BT-909

**Brand:** upstart battery
**Price:** € 25.52
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay Connected, Stay Ahead – Power Your Calls with Confidence!

## Quick Answers

- **What is this?** Cordless Phone Battery Replacement for BT-909 by upstart battery
- **How much does it cost?** € 25.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/33194257-cordless-phone-battery-replacement-for-bt-909)

## Best For

- upstart battery enthusiasts

## Why This Product

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

## Key Features

- • **Power That Lasts:** 700mAh capacity keeps your cordless phone running longer, so you never miss a call.
- • **Consistent Voltage:** 3.6 volts ensures stable performance and crystal-clear conversations every time.
- • **Eco-Friendly Recharge:** Nickel-Metal Hydride rechargeable battery reduces waste and saves you money.
- • **Seamless Compatibility:** Specifically designed for BT-909 and Uniden Tru8866 models—easy swap, no hassle.
- • **Grade A Quality Assurance:** UpStart Battery’s premium grade guarantees durability and dependable power.

## Overview

This UpStart Battery replacement for BT-909 cordless phones offers a high-capacity 700mAh Nickel-Metal Hydride rechargeable battery with a stable 3.6V output. Engineered for compatibility with Uniden Tru8866 models, it delivers reliable, long-lasting power to keep your cordless phone performing like new without the cost of a full system replacement.

## Description

Please note: This is an UpStart Battery brand replacement part, not an OEM product. This product is not affiliated with any OEM brands and is not covered under any warranties offered by the original manufacturers. Any warranties for this product are offered solely by Upstart Battery. All mentions of brand names or model descriptions are made strictly to illustrate compatibility. All brand names and logos are registered trademarks of their respective owners.

Review: Calidad - Batería de calidad
Review: Prompt and Proper - Works great so far. Actually, I was delighted to find it was available given the limited number of options we had to search for another compatible wireless unit for our older system vs. replacing the entire system. This battery answered the question. In giving it five stars I am assuming the battery will still be working a year and two and more from now. The original lasted five.

## Features

- Replacement for Uniden Tru8866 battery
- Battery Capacity: 700mAh, Voltage: 3.6, Type: Nickel-Metal Hydride
- UpStart Battery
- Grade A Quality. High Capacity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IPNLZH6 |
| Antenna Location | Phone |
| Battery Capacity | 700 milliampere_hour |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #1,313 in Cordless Telephone Batteries |
| Brand | Upstart Battery |
| Customer Reviews | 4.2 out of 5 stars 27 Reviews |
| Included Components | Battery |
| Manufacturer | Upstart Battery |
| Model Number | BT-909 |
| Recommended Uses For Product | Phone |
| Reusability | Rechargeable |
| UPC | 628586008854 |
| Unit Count | 1 Count |
| Voltage | 3.6 volts |

## Product Details

- **Battery Capacity:** 700 Milliampere Hour (mAh)
- **Battery Cell Composition:** Lithium Ion
- **Brand:** Upstart Battery
- **Recommended Uses For Product:** Phone
- **Unit Count:** 1.0 Count

## Images

![Cordless Phone Battery Replacement for BT-909 - Image 1](https://m.media-amazon.com/images/I/71aG9tnAXOL.jpg)
![Cordless Phone Battery Replacement for BT-909 - Image 2](https://m.media-amazon.com/images/I/61eUTTDppPL.jpg)
![Cordless Phone Battery Replacement for BT-909 - Image 3](https://m.media-amazon.com/images/I/71glcnh1UOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Calidad
*by P***E on April 8, 2022*

Batería de calidad

### ⭐⭐⭐⭐⭐ Prompt and Proper
*by B***T on February 9, 2016*

Works great so far. Actually, I was delighted to find it was available given the limited number of options we had to search for another compatible wireless unit for our older system vs. replacing the entire system. This battery answered the question. In giving it five stars I am assuming the battery will still be working a year and two and more from now. The original lasted five.

### ⭐⭐⭐⭐ It Works!
*by P***K on March 3, 2018*

Functioning very well to date. I have a bad taste from the result of the companion purchase which does not meet the original function requirements!!

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**Shop now:** [https://www.desertcart.gr/products/33194257-cordless-phone-battery-replacement-for-bt-909](https://www.desertcart.gr/products/33194257-cordless-phone-battery-replacement-for-bt-909)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-20*