---
product_id: 613341640
title: "4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU"
brand: "rocketbus"
price: "KSh6859"
currency: KES
in_stock: true
reviews_count: 8
category: "Rocket Bus"
url: https://www.desertcart.co.ke/products/613341640-4-bk-40aaabu-1-2v-400mah-ni-mh-rechargeable-battery
store_origin: KE
region: Kenya
---

# 400mAh Rapid Recharge Panasonic Model Perfect Fit 1.2V Ni-MH Power Boost 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU

**Brand:** rocketbus
**Price:** KSh6859
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your calls, power your day — never miss a moment!

## Quick Answers

- **What is this?** 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU by rocketbus
- **How much does it cost?** KSh6859 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/613341640-4-bk-40aaabu-1-2v-400mah-ni-mh-rechargeable-battery)

## Best For

- rocketbus enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Compatibility:** Specifically engineered for Panasonic models KX-TGD220N through KX-TGE275S for flawless performance.
- • **Confidence in Every Charge:** Backed by a 1-year warranty, ensuring long-lasting reliability and peace of mind.
- • **Eco-Friendly Rechargeability:** Sustainable Ni-MH technology lets you recharge and reuse, reducing waste and saving money.
- • **Reliable Power, Always Ready:** Keep your cordless phone charged and connected with high-capacity 400mAh Ni-MH cells.
- • **Quick Installation, Instant Revival:** Plug-and-play design gets your phone back in action fast—no tech hassle required.

## Overview

The RocketBus 4 BK-40AAABU rechargeable battery pack delivers 1.2V and 400mAh Ni-MH power, perfectly compatible with a range of Panasonic cordless phone models. Designed for easy installation and long-lasting use, these batteries come with a 1-year warranty, ensuring your cordless phone stays reliably charged and ready.

## Description

Buy RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Cordless phone batteries - Replacement batteries for my 2 cordless phone handsets: exact match. easy to install, phones charged up quickly and now work again!
Review: Great Product - Was same type and brand of battery that came with my phone 12 years ago. I charged them up and my phone works perfectly again.

## Features

- 1.2V 400mAh
- Ni-MH Rechargeable
- Compatible with KX-TGD220N, KX-TGD22N, KX-TGD223N, KX-TGD224N, KX-TGD225N, KX-TGE273S, KX-TGE274S, KX-TGE275S
- 1 Year Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CW4JMHHB |
| Amperage | 400 Milliamps |
| Antenna Location | Phone |
| Battery Capacity | 400 Milliamp Hours |
| Battery Cell Composition | NiMH |
| Battery Cell Type | NiMH |
| Best Sellers Rank | #23 in Cordless Telephone Batteries |
| Brand | RocketBus |
| Compatible Phone Models | KX-TGD220N, KX-TGD22N, KX-TGD223N, KX-TGD224N, KX-TGD225N, KX-TGE273S, KX-TGE274S, KX-TGE275S |
| Customer Reviews | 4.6 out of 5 stars 299 Reviews |
| Item Dimensions | 1 x 1 x 2 inches |
| Manufacturer | RocketBus |
| Model Name | BK-40AAABU |
| Model Number | BK-40AAABU |
| Number of Batteries | 4 AAA batteries required. (included) |
| Recommended Uses For Product | Phone |
| Reusability | Rechargeable |
| UPC | 680063060908 |
| Unit Count | 4.0 Count |
| Voltage | 1.2 Volts |
| Warranty Description | 1 Year Warranty |

## Product Details

- **Number of Batteries:** 4 AAA batteries required. (included)
- **Brand:** RocketBus
- **Battery Cell Composition:** NiMH
- **Battery Capacity:** 400 Milliamp Hours
- **Recommended Uses For Product:** Phone

## Images

![4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU - Image 1](https://m.media-amazon.com/images/I/81Gq4rxGCUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Cordless phone batteries
*by J***. on January 13, 2026*

Replacement batteries for my 2 cordless phone handsets: exact match. easy to install, phones charged up quickly and now work again!

### ⭐⭐⭐⭐⭐ Great Product
*by F***Y on January 21, 2026*

Was same type and brand of battery that came with my phone 12 years ago. I charged them up and my phone works perfectly again.

### ⭐⭐⭐⭐⭐ Rechargeable batteries
*by D***R on December 12, 2025*

Works well on my Panasonic home phones.

## Frequently Bought Together

- RocketBus 4 BK-40AAABU 1.2V 400mAh Ni-MH Rechargeable Battery Packs for Panasonic Cordless Phone System BK40AAABU
- RocketBus 6-Pack BK-40AAABU Replacement 1.2V 400mAh Battery for Panasonic Cordless Phone System BK40AAABU
- Cerepros 4-Pack BK-40AAABU 1.2V 400mAh Replacement Battery Pack for Panasonic Cordless Phone Handset BK40AAABU

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**Shop now:** [https://www.desertcart.co.ke/products/613341640-4-bk-40aaabu-1-2v-400mah-ni-mh-rechargeable-battery](https://www.desertcart.co.ke/products/613341640-4-bk-40aaabu-1-2v-400mah-ni-mh-rechargeable-battery)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-28*