







🔋 Power your peace of mind with Casil’s unstoppable 12V 4Ah battery!
The Casil CA1240 is a 12V 4Ah sealed lead-acid (SLA) maintenance-free alarm battery featuring AGM technology and F1 terminals. Designed for reliable, long-lasting power, it’s compatible with a wide range of alarm systems including ADT, Safewatch, and Honeywell. Lightweight at 2.71 pounds and backed by a 1-year warranty, this rechargeable battery ensures your security setup stays energized without fuss.





| ASIN | B004QC8WZI |
| Amperage | 4 Amps |
| Antenna Location | 12V 4Ah SLA battery replacements, ADT – Safewatch, Ademco, Pulse, and Lynx series control panels, APC Back-UPS models requiring a 12 V 4 Ah SLA replacement CyberPower and Tripp Lite, Alarm Systems, DSC – PowerSeries PC1616, PC1832, PC1864, and other models using 12 V 4 Ah F1 batteries, Emergency Lighting Lithonia, Dual-Lite, Sure-Lites, Emergi-Lite, LightAlarms, Chloride, Fire panels and control b… |
| Battery Capacity | 4 Amp Hours |
| Battery Cell Composition | Lead Acid |
| Battery Cell Type | Lead Acid |
| Battery Weight | 2.71 Pounds |
| Best Sellers Rank | #30,527 in Health & Household ( See Top 100 in Health & Household ) #36 in 12V Batteries |
| Brand | Casil |
| Built-In Media | battery |
| Compatible Phone Models | Casil CA1240, PS-1240, UB1240 |
| Customer Reviews | 4.6 out of 5 stars 6,331 Reviews |
| Global Trade Identification Number | 00881314736027 |
| Item Dimensions | 3.58 x 2.76 x 3.94 inches |
| Item Type Name | lead_acid_battery |
| Manufacturer | Casil |
| Model Name | CA1240 |
| Model Number | CA1240 |
| Number of Batteries | 1 12V batteries required. (included) |
| Recommended Uses For Product | 12V 4Ah SLA battery replacements, ADT – Safewatch, Ademco, Pulse, and Lynx series control panels, APC Back-UPS models requiring a 12 V 4 Ah SLA replacement CyberPower and Tripp Lite, Alarm Systems, DSC – PowerSeries PC1616, PC1832, PC1864, and other models using 12 V 4 Ah F1 batteries, Emergency Lighting Lithonia, Dual-Lite, Sure-Lites, Emergi-Lite, LightAlarms, Chloride, Fire panels and control boxes, GE / Interlogix – Concord, Simon XT, Simon XTi, Simon 3, Garage door openers Linear, LiftMaster, Chamberlain, Doorking backup units using 12 V 4 Ah batteries, Honeywell – Vista, Lynx, and First Alert series, Toys & Ride-Ons Recommended Uses For Product 12V 4Ah SLA battery replacements, ADT – Safewatch, Ademco, Pulse, and Lynx series control panels, APC Back-UPS models requiring a 12 V 4 Ah SLA replacement CyberPower and Tripp Lite, Alarm Systems, DSC – PowerSeries PC1616, PC1832, PC1864, and other models using 12 V 4 Ah F1 batteries, Emergency Lighting Lithonia, Dual-Lite, Sure-Lites, Emergi-Lite, LightAlarms, Chloride, Fire panels and control boxes, GE / Interlogix – Concord, Simon XT, Simon XTi, Simon 3, Garage door openers Linear, LiftMaster, Chamberlain, Doorking backup units using 12 V 4 Ah batteries, Honeywell – Vista, Lynx, and First Alert series, Toys & Ride-Ons See more |
| Reusability | Rechargeable |
| UPC | 737993546115 763979880010 737993546092 737993545019 881314736027 737993545446 737993545613 737993545668 737993545491 737993545620 737993543787 737993543985 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts (DC) |
| Warranty Description | 1 Year |
G**R
Battery Works Great in my Alarm Panel
I got a yellow warning indicator on my alarm control panel. The code indicated the battery was bad. I had ordered this same battery 5 years ago, and it was still available for purchase, so I bought it again. After an easy installation, the battery warning indicator went out. This is a good battery at a good price.
S**Z
quality product
A quality product. When it arrived, my son used it and it worked perfectly. He was very happy.
B**4
Great Quality!
I purchased this battery as a replacement for my home alarm system, and it works perfectly. It fits just right and provides reliable power backup. Installation was straightforward, and so far it’s holding a charge well. Great quality for the price!
T**T
OEM battery
OEM part for a security system for parent's place. No reported problems. Original one lasted over 10 years
G**B
Needed for Security System - Came fully charged
This was the exact same battery needed to replace the one that lived out its life in my security system. It came fully charged and was easy to install. Great DIY value since the security company would have charged me a service call plus at least $75 for the same battery.
A**G
These will do just fine
Bought for a spare for when things go poop.
F**R
Great battery
Perfect replacement for our security system back-up battery.
K**P
Easy first step with AC problems
I returned from a work trip to find that my AC was kicking on and then off a few seconds later... over and over. A little cool air was coming out of the vents... but it was constantly shutting off. I went outside to see what was going on at the unit out there and noticed that the fan was not kicking on. I was able to get it started with the help of a stick sometimes, but not anything close to normal speed. After a quick youtube search, the overwhelming diagnosis was a blown capacitor. So I turned of the breaker both inside and out... to check the capacitor configuration... and found the exact make and model on Amazon for less than $25 delivered with overnight shipping. Figured it was worth a shot. Amazon showed up the next day, and I swapped out the unit in literally 5 minutes (be sure to run a rubber handled screwdriver across the connectors in case there is any leftover charge) after noting the correct location of each wire (I took one off the old, then put it in the same spot on the new... repeat for all 4 connections(should be 3 connectors: HERM, FAN, and a dot... my dot had a second cable on it). Then I flipped the power back on... and all is well again - was so happy to see that fan humming. So maybe consider this as a first step before calling the AC guy for service... which will surely be much more time, $$$, and aggravation.
Trustpilot
2 weeks ago
1 month ago