---
product_id: 140049493
title: "Genuine CA1250 12V 5Ah SLA Alarm Battery | Upgrade Replacement for CA1240 12V 4Ah | Sealed Lead Acid AGM Backup Power"
brand: "casil"
price: "€ 42.61"
currency: EUR
in_stock: true
reviews_count: 8
category: "Casil"
url: https://www.desertcart.ie/products/140049493-genuine-ca1250-12v-5ah-sla-alarm-battery-upgrade-replacement-ca1240
store_origin: IE
region: Ireland
---

# Direct drop-in upgrade from 4Ah 12V 5Ah high-capacity power Spill-proof, maintenance-free AGM tech Genuine CA1250 12V 5Ah SLA Alarm Battery | Upgrade Replacement for CA1240 12V 4Ah | Sealed Lead Acid AGM Backup Power

**Brand:** casil
**Price:** € 42.61
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your peace of mind with Casil’s next-level backup battery!

## Quick Answers

- **What is this?** Genuine CA1250 12V 5Ah SLA Alarm Battery | Upgrade Replacement for CA1240 12V 4Ah | Sealed Lead Acid AGM Backup Power by casil
- **How much does it cost?** € 42.61 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/140049493-genuine-ca1250-12v-5ah-sla-alarm-battery-upgrade-replacement-ca1240)

## Best For

- casil enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Shock, vibration, and temperature resistant for reliable backup in any environment.
- • **Plug & Play Simplicity:** Same size and terminals as CA1240 for effortless, no-fuss replacement.
- • **Power Up Your Security:** Upgrade from 4Ah to 5Ah for longer alarm runtime and peace of mind.
- • **Safe & Maintenance-Free:** Sealed AGM design means zero leaks, zero watering, zero hassle.
- • **Versatile Compatibility:** Perfect for alarms, UPS, emergency lighting, and access control systems.

## Overview

The Casil Genuine CA1250 is a sealed lead acid AGM battery delivering 12V and 5Ah capacity, designed as a direct, maintenance-free upgrade from the CA1240 4Ah model. Engineered for alarm and security systems, it offers spill-proof safety, durable construction, and reliable deep-cycle performance, ensuring dependable backup power for home and commercial devices.

## Description

desertcart.com: Casil Genuine CA1250 12V 5Ah SLA Alarm Battery | Upgrade Replacement for CA1240 12V 4Ah | Sealed Lead Acid AGM Backup Power : Health & Household

Review: Backup battery for home alarm system - Works perfectly with my alarm system!
Review: Battery - I had to replaced the home security battery. Easy to install. No issues.

## Features

- 🔋 Genuine Casil Battery – CA1250 Upgrade Authentic Casil replacement battery upgrading from CA1240 12V 4Ah to higher-capacity 12V 5Ah for longer runtime and improved reliability.
- ⚡ Higher Capacity, Same Fit Provides increased amp-hour performance without changing size or terminal type, making it a direct drop-in replacement.
- 🛡️ Sealed Lead Acid (SLA) AGM Technology Advanced AGM design is spill-proof, leak-proof, and maintenance-free for safe indoor operation.
- 🚨 Designed for Alarm & Security Systems Ideal for home alarms, security panels, fire alarm systems, and monitoring equipment requiring dependable standby power.
- 🔄 Reliable Standby & Deep-Cycle Performance Engineered for consistent voltage output, strong deep-discharge recovery, and dependable backup power during outages.
- 🔧 Maintenance-Free & Rechargeable Fully sealed construction means no watering or servicing required, perfect for long-term installed use.
- 🔌 Wide Device Compatibility Compatible with UPS systems, emergency lighting, access control panels, medical equipment, and backup power devices.
- 📏 Standard F1 Terminals – Easy Install Industry-standard F1 (0.187") terminals allow quick, secure installation (battery only; no hardware included).
- 🏗️ Durable, Long-Lasting Design Built to resist vibration, shock, and temperature variation for stable residential and commercial performance.
- ✅ Trusted Casil Quality Manufactured to strict quality standards, delivering reliable power and long service life you can count on.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q413L1T |
| Batteries | 1 12V batteries required. |
| Best Sellers Rank | #40,957 in Health & Household ( See Top 100 in Health & Household ) #70 in 12V Batteries |
| Customer Reviews | 4.6 4.6 out of 5 stars (189) |
| Date First Available | December 23, 2020 |
| Item Weight | 3 pounds |
| Item model number | CA1250 |
| Manufacturer | Chee Yuen Industrial Co., Ltd |
| Product Dimensions | 3.54 x 2.76 x 4.21 inches |

## Product Details

- **Battery Capacity:** 5 Amp Hours
- **Battery Cell Composition:** Lead Acid
- **Brand:** Casil
- **Number of Batteries:** 1 12V batteries required.

## Images

![Genuine CA1250 12V 5Ah SLA Alarm Battery | Upgrade Replacement for CA1240 12V 4Ah | Sealed Lead Acid AGM Backup Power - Image 1](https://m.media-amazon.com/images/I/61LFyNWGPrL.jpg)

## Available Options

This product comes in different **Model** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Backup battery for home alarm system
*by S***A on December 7, 2025*

Works perfectly with my alarm system!

### ⭐⭐⭐⭐⭐ Battery
*by J***N on August 3, 2025*

I had to replaced the home security battery. Easy to install. No issues.

### ⭐⭐⭐⭐⭐ Battery
*by M***C on September 29, 2025*

Worked well in my security system. Good value as well.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-17*