---
product_id: 297271
title: "Panasonic Cordless Telephone Battery (HHR-P104A)"
brand: "panasonic"
price: "HK$405"
currency: HKD
in_stock: false
reviews_count: 8
url: https://www.desertcart.hk/products/297271-panasonic-cordless-telephone-battery-hhr-p104a
store_origin: HK
region: Hong Kong
---

# Consistent 1.2V output voltage Compatible with 30+ Panasonic cordless models Ni-MH chemistry for reliable power Panasonic Cordless Telephone Battery (HHR-P104A)

**Brand:** panasonic
**Price:** HK$405
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power your calls, power your day — never miss a beat with Panasonic!

## Quick Answers

- **What is this?** Panasonic Cordless Telephone Battery (HHR-P104A) by panasonic
- **How much does it cost?** HK$405 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/297271-panasonic-cordless-telephone-battery-hhr-p104a)

## Best For

- panasonic enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** At just 1.6 ounces and 3x2x1 inches, it’s the perfect discreet power upgrade for your home office setup.
- • **Long-Lasting NiMH Power:** Advanced Nickel-Metal Hydride chemistry ensures steady, reliable charge cycles for uninterrupted calls.
- • **Effortless Compatibility:** Fits seamlessly with over 30 Panasonic cordless phone models, eliminating guesswork.
- • **Quick & Easy Installation:** Plug-and-play design gets your phone back in action within minutes—no tech skills required.
- • **Trusted Panasonic Quality:** Backed by a 4.6-star rating from nearly 3,000 users, this battery delivers dependable performance every time.

## Overview

The Panasonic HHR-P104A is a Nickel-Metal Hydride (NiMH) cordless phone battery delivering a consistent 1.2V output. Compatible with over 30 Panasonic phone models, it offers a quick, hassle-free replacement solution. Lightweight and compact, this battery is highly rated for reliability and ease of installation, making it an essential upgrade for professionals who demand uninterrupted communication.

## Description

Panasonic HHR-P104A Nickel-Metal Hydride (NiMH) Battery is compatible with the Panasonic phone models below: Model No. KX-FPG391 KX-TG2302B KX-TG2312F KX-TG2312R KX-TG2312W KX-TG2313F KX-TG2313P KX-TG2313W KX-TG2314S KX-TG2314W KX-TG2322B KX-TG2335S KX-TG2336S KX-TG2343F KX-TG2343P KX-TG2343W KX-TG2344B KX-TG2346S KX-TG2355S KX-TG2356S KX-TG2357B KX-TG2357S KX-TG2386B KX-TG2386S KX-TG5050S KX-TG5050W KX-TG5055W KX-TG5200M KX-TG5202M KX-TG5210M KX-TG5212M KX-TG5213M KX-TG5230M KX-TG5240M KX-TG6500B KX-TG6502B KX-TGA520M KX-TGA523M KX-TGA650B

Review: Simple Replacement That Works Exactly as It Should - This Panasonic cordless phone battery was exactly what I needed. No fuss, no guessing, just a straightforward replacement that works. Ordering through desertcart was quick and easy, and the battery arrived ready to go. Installation took only a minute, and my phone was immediately back to holding a solid charge. No compatibility issues, no warning messages, and performance feels just like the original battery that came with the phone. Sometimes the best reviews are for products that do their job perfectly without any drama, and this is one of them. Easy to order, easy to install, and works great.
Review: It's a battery - A battery is a device that converts chemical energy directly to electrical energy. It consists of a number of voltaic cells; each voltaic cell consists of two half-cells connected in series by a conductive electrolyte containing anions and cations. One half-cell includes electrolyte and the electrode to which anions (negatively charged ions) migrate, i.e., the anode or negative electrode; the other half-cell includes electrolyte and the electrode to which cations (positively charged ions) migrate, i.e., the cathode or positive electrode. In the redox reaction that powers the battery, cations are reduced (electrons are added) at the cathode, while anions are oxidized (electrons are removed) at the anode. The electrodes do not touch each other but are electrically connected by the electrolyte. Some cells use two half-cells with different electrolytes. A separator between half-cells allows ions to flow, but prevents mixing of the electrolytes. Each half-cell has an electromotive force (or emf), determined by its ability to drive electric current from the interior to the exterior of the cell. The net emf of the cell is the difference between the emfs of its half-cells, as first recognized by Volta. Therefore, if the electrodes have emfs and , then the net emf is ; in other words, the net emf is the difference between the reduction potentials of the half-reactions. The electrical driving force or across the terminals of a cell is known as the terminal voltage (difference) and is measured in volts. The terminal voltage of a cell that is neither charging nor discharging is called the open-circuit voltage and equals the emf of the cell. Because of internal resistance, the terminal voltage of a cell that is discharging is smaller in magnitude than the open-circuit voltage and the terminal voltage of a cell that is charging exceeds the open-circuit voltage. An ideal cell has negligible internal resistance, so it would maintain a constant terminal voltage of until exhausted, then dropping to zero. If such a cell maintained 1.5 volts and stored a charge of one coulomb then on complete discharge it would perform 1.5 joule of work. In actual cells, the internal resistance increases under discharge, and the open circuit voltage also decreases under discharge. If the voltage and resistance are plotted against time, the resulting graphs typically are a curve; the shape of the curve varies according to the chemistry and internal arrangement employed. As stated above, the voltage developed across a cell's terminals depends on the energy release of the chemical reactions of its electrodes and electrolyte. Alkaline and zinc-carbon cells have different chemistries but approximately the same emf of 1.5 volts; likewise NiCd and NiMH cells have different chemistries, but approximately the same emf of 1.2 volts. On the other hand the high electrochemical potential changes in the reactions of lithium compounds give lithium cells emfs of 3 volts or more. And it fits perfectly into my old cordless phone.

## Features

- Ni-MH Battery
- Type 29 Cordless telephone battery
- NOTE: Three letters on the batteries are production lot code

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002JY712 |
| Batteries | 2 AA batteries required. (included) |
| Best Sellers Rank | #453 in Cordless Telephone Batteries |
| Brand | Panasonic |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,918) |
| Date First Available | May 24, 2008 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.6 ounces |
| Item model number | HHR-P104A |
| Manufacturer | PANASONIC |
| Manufacturer Part Number | HHR-P104A |
| Product Dimensions | 3 x 2 x 1 inches |

## Product Details

- **Battery Capacity:** 830
- **Battery Cell Composition:** NiMH
- **Brand:** Panasonic
- **Number of Batteries:** 2 AA batteries required. (included)
- **Recommended Uses For Product:** Phone

## Images

![Panasonic Cordless Telephone Battery (HHR-P104A) - Image 1](https://m.media-amazon.com/images/I/71UUvokAKrL.jpg)
![Panasonic Cordless Telephone Battery (HHR-P104A) - Image 2](https://m.media-amazon.com/images/I/51MJIJGDbmL.jpg)
![Panasonic Cordless Telephone Battery (HHR-P104A) - Image 3](https://m.media-amazon.com/images/I/61W98emwH-L.jpg)
![Panasonic Cordless Telephone Battery (HHR-P104A) - Image 4](https://m.media-amazon.com/images/I/51pdW3i2iuL.jpg)

## Questions & Answers

**Q: Can anyone tell me which seller on Amazon actually sells the genuine Panasonic battery and not a generic brand? I previously bought 2 on Amazon that was labelled Panasonic, but was sent a generic that didn't last a month.**
A: I actually bought mine directly from Amazon.com with Prime. It no longer comes in this mint green color but an orange color. When I received it, I called Panasonic directly questioning the color and they assured me I received the correct battery. I purchased it on May 13th and it's still working great. It holds the charge and I can talk for hours on the phone again. Lol

**Q: I have found HHR-P104 batteries on other sites listed @ $12 for 2 pack; why are these so much higher?**
A: I got 2 pack for less than $12. One worked for 3 days another for 2 days. I always wonder why do we Americans blame Alibaba for selling fake items when Amazon is doing the same thing.
I miss Radioshack like stores. I want to buy Panasonic stuff from Panasonic store Not from third party on Amazon.

**Q: life span**
A: We've had our Panosonic cordless phone set for more than 9 years. We've changed the batteries for the first time less than 2 months ago. BTW, we purchased genuine Panosonic batteries. All 4 hand sets are in very good condition.

**Q: Will it replace HHR-P103?**
A: I don't know about HHR-P103. What are the specs? This HHR-P104a is a rechargeable Ni-MH,  3.6V,  830mAh for a Panasonic phone with 5.8GHz 2.4GHz range. On the back of the package, it lists the Panasonic model numbers that it will work with: KX-FPG391, TG2302, TG2312, TG2313, TG2314, TG2322, TG2335, TG2336, TG2343, TG2344, TG2346, TG2355, TG2356, TG2357, TG2386, TG5050, TG5055, TG5200, TG5202, TG5210, TG5212, TG5213, TG5230, TG5240, TG6500, TG6502, TGA520, TGA523, TGA650. If you can find your model number in there, then it ought to work. (I take no responsibility for any typos that might be in that list, so double check!)I hope that helps somehow.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple Replacement That Works Exactly as It Should
*by M***M on January 24, 2026*

This Panasonic cordless phone battery was exactly what I needed. No fuss, no guessing, just a straightforward replacement that works. Ordering through Amazon was quick and easy, and the battery arrived ready to go. Installation took only a minute, and my phone was immediately back to holding a solid charge. No compatibility issues, no warning messages, and performance feels just like the original battery that came with the phone. Sometimes the best reviews are for products that do their job perfectly without any drama, and this is one of them. Easy to order, easy to install, and works great.

### ⭐⭐⭐⭐⭐ It's a battery
*by R***O on May 29, 2012*

A battery is a device that converts chemical energy directly to electrical energy. It consists of a number of voltaic cells; each voltaic cell consists of two half-cells connected in series by a conductive electrolyte containing anions and cations. One half-cell includes electrolyte and the electrode to which anions (negatively charged ions) migrate, i.e., the anode or negative electrode; the other half-cell includes electrolyte and the electrode to which cations (positively charged ions) migrate, i.e., the cathode or positive electrode. In the redox reaction that powers the battery, cations are reduced (electrons are added) at the cathode, while anions are oxidized (electrons are removed) at the anode. The electrodes do not touch each other but are electrically connected by the electrolyte. Some cells use two half-cells with different electrolytes. A separator between half-cells allows ions to flow, but prevents mixing of the electrolytes. Each half-cell has an electromotive force (or emf), determined by its ability to drive electric current from the interior to the exterior of the cell. The net emf of the cell is the difference between the emfs of its half-cells, as first recognized by Volta. Therefore, if the electrodes have emfs and , then the net emf is ; in other words, the net emf is the difference between the reduction potentials of the half-reactions. The electrical driving force or across the terminals of a cell is known as the terminal voltage (difference) and is measured in volts. The terminal voltage of a cell that is neither charging nor discharging is called the open-circuit voltage and equals the emf of the cell. Because of internal resistance, the terminal voltage of a cell that is discharging is smaller in magnitude than the open-circuit voltage and the terminal voltage of a cell that is charging exceeds the open-circuit voltage. An ideal cell has negligible internal resistance, so it would maintain a constant terminal voltage of until exhausted, then dropping to zero. If such a cell maintained 1.5 volts and stored a charge of one coulomb then on complete discharge it would perform 1.5 joule of work. In actual cells, the internal resistance increases under discharge, and the open circuit voltage also decreases under discharge. If the voltage and resistance are plotted against time, the resulting graphs typically are a curve; the shape of the curve varies according to the chemistry and internal arrangement employed. As stated above, the voltage developed across a cell's terminals depends on the energy release of the chemical reactions of its electrodes and electrolyte. Alkaline and zinc-carbon cells have different chemistries but approximately the same emf of 1.5 volts; likewise NiCd and NiMH cells have different chemistries, but approximately the same emf of 1.2 volts. On the other hand the high electrochemical potential changes in the reactions of lithium compounds give lithium cells emfs of 3 volts or more. And it fits perfectly into my old cordless phone.

### ⭐⭐⭐⭐⭐ EXCELLENT!
*by B***I on June 1, 2011*

Needed some new batteries for all of the cordless phones in the house, so I decided to check Amazon for any possible deals. Batteries are EXPENSIVE as you all know, so I'll take all the help I can get. I stumbled across these batteries available through DependableResource for..$8.95 (at the time of purchase)?! Did I read that right?! This price was SIGNIFICANTLY cheaper than any other retailer's price that I knew of (about $15.00 elsewhere). Of course, you can't have your cake and eat it too, so something like this naturally made us a bit doubtful. I mean, for that kind of deal, there's gotta be some kind of catch, right? Fake batteries, perhaps? But, seeing that the seller had a great rating and excellent reviews, we decided we'd give it a try, and bought three batteries for a total of $26.88 (with Super Saver Discount, therefore no S&H, and no tax) with a cautious "we'll see" attitude. If anything was wrong with the product, we were immediately going to send it back. Well, the batteries arrived, and we were pleasantly surprised to learn that they are GENUINE! Yay! So I guess you really CAN have your cake and eat it too sometimes! :) The only thing I can think of that wasn't even really a problem is that the package took a little while to arrive (about 9 days). But, we were in no hurry, therefore we didn't need the package right away, and didn't need to spend a lot on shipping to get it here quickly. I think we were just excited, that always makes things seem like they're taking forever. :) These guys are the real deal, thanks, DependableResource, for selling my family genuine batteries, and saving us a ton of money! :)

## Frequently Bought Together

- Panasonic Cordless Telephone Battery (HHR-P104A)
- Kastar 2 Pack Cordless Phone Battery for Panasonic HHR-P104 HHR-P104A Type 29, Panasonic KX-FG6550 KX-FPG391 KX-TG2388B KX-TG2396 and More
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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-17*