---
product_id: 8760717
title: "Battery Replacement for Honeywell Ademco Genuine LYNXRCHKIT-SHA Lynx Backup Battery, 300-03866, LCP500-4B, OSA214, Lynx Plus, Lynx 5100 5200 5210 5300 7000, Lyric Keypad LCP500-L Controller"
brand: "kastar"
price: "€ 32.19"
currency: EUR
in_stock: true
reviews_count: 8
category: "Kastar"
url: https://www.desertcart.ie/products/8760717-battery-replacement-for-honeywell-ademco-genuine-lynxrchkit-sha-lynx-backup
store_origin: IE
region: Ireland
---

# 3700mAh high capacity Compact 3.97" x 2.7" x 0.68" 7.2V NiMH power Battery Replacement for Honeywell Ademco Genuine LYNXRCHKIT-SHA Lynx Backup Battery, 300-03866, LCP500-4B, OSA214, Lynx Plus, Lynx 5100 5200 5210 5300 7000, Lyric Keypad LCP500-L Controller

**Brand:** kastar
**Price:** € 32.19
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your peace of mind with flawless backup energy!

## Quick Answers

- **What is this?** Battery Replacement for Honeywell Ademco Genuine LYNXRCHKIT-SHA Lynx Backup Battery, 300-03866, LCP500-4B, OSA214, Lynx Plus, Lynx 5100 5200 5210 5300 7000, Lyric Keypad LCP500-L Controller by kastar
- **How much does it cost?** € 32.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/8760717-battery-replacement-for-honeywell-ademco-genuine-lynxrchkit-sha-lynx-backup)

## Best For

- kastar enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Power:** 3700mAh NiMH battery capacity delivers reliable, extended backup during outages.
- • **Trusted Performance:** Highly rated by users for consistent, beep-free security system operation.
- • **Peace of Mind Backup:** Keep your security system powered and your home protected without interruption.
- • **Compact & Easy Install:** Slim dimensions and plug-and-play design make replacement effortless and quick.
- • **Seamless Compatibility:** Perfectly engineered for Honeywell Ademco Lynx systems, ensuring flawless backup power.

## Overview

The Kastar Battery Replacement is a genuine-quality 7.2V NiMH backup battery with 3700mAh capacity, designed specifically for Honeywell Ademco Lynx security systems. Compact and easy to install, it ensures uninterrupted security system operation, backed by strong user reviews and trusted performance.

## Description

desertcart.com : Kastar Battery Replacement for Honeywell Ademco Genuine LYNXRCHKIT-SHA Lynx Backup Battery, 300-03866, LCP500-4B, OSA214, Lynx Plus, Lynx 5100 5200 5210 5300 7000, Lyric Keypad LCP500-L Controller : Electronics

Review: Great and easy to install - Works great with my system. easy to install- fit perfectly just had to plug it in. Priced great..arrived early too
Review: Worked As Needed - Had to replace the internal batter in my Honewell Lynx that I did not know existed until my alarm started beeping constantly. The battery fit inside the unit will and corrected the issue.

## Features

- Replacement for Honeywell Ademco Genuine LYNXRCHKIT-SHA Lynx Backup Battery
- Battery Type: Nickel Metal Hydride (Ni-MH)
- Battery Voltage: 7.2V; Battery Capacity: 3700mAh
- Battery Dimension: 3.97" x 2.7" x 0.68" (100.80 x 68.00 x 17.20mm)
- Package Includes: 1-Pack Battery

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002PNE6OQ |
| Batteries | 1 AA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Capacity | 3700 Milliamp Hours |
| Battery Cell Type | NiMH |
| Best Sellers Rank | #1,071 in Security & Surveillance Accessories |
| Customer Reviews | 4.3 4.3 out of 5 stars (209) |
| Date First Available | June 14, 2011 |
| Included Components | Battery |
| Item Package Quantity | 1 |
| Item Weight | 10.6 ounces |
| Item model number | MH-1B-L5210-2 |
| Manufacturer | Kastar |
| Package Dimensions | 4.29 x 3.23 x 1.06 inches |
| Part Number | MH-1B-L5210-2 |
| Power Source | battery powered |
| Voltage | 7.2 Volts |

## Product Details

- **Battery Capacity:** 3700 Milliamp Hours
- **Battery Cell Composition:** NiMH
- **Brand:** Kastar
- **Number of Batteries:** 1 AA batteries required. (included)
- **Unit Count:** 1 Count

## Images

![Battery Replacement for Honeywell Ademco Genuine LYNXRCHKIT-SHA Lynx Backup Battery, 300-03866, LCP500-4B, OSA214, Lynx Plus, Lynx 5100 5200 5210 5300 7000, Lyric Keypad LCP500-L Controller - Image 1](https://m.media-amazon.com/images/I/71vazW05eFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great and easy to install
*by J***B on October 5, 2024*

Works great with my system. easy to install- fit perfectly just had to plug it in. Priced great..arrived early too

### ⭐⭐⭐⭐⭐ Worked As Needed
*by H***S on January 16, 2025*

Had to replace the internal batter in my Honewell Lynx that I did not know existed until my alarm started beeping constantly. The battery fit inside the unit will and corrected the issue.

### ⭐⭐⭐⭐⭐ Perfect replacement for 10 year old Honeywell alarm system
*by P***S on October 5, 2022*

My alarm system had a “low battery” alert and it was driving me crazy. Every 3 hours it would start beeping every few minutes nonstop until I hit the disarm button, waking me up throughout the night and causing the monitoring company to call me to alert me. I was waiting for the alarm company to call me back about a replacement when I googled the barcode number, found this, ordered, received and installed it in less than 24 hours. It was extremely easy to install, just plug in. It is larger than the original one but that was no issue, my panel is set up to accommodate both sizes. It took a few hours for the low battery alert to go away but it’s gone now.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-19*