🔋 Stay powered, stay protected — don’t let your security go offline!
The Casil CA1240 is a genuine 12V 4Ah sealed lead-acid battery designed for alarm systems, especially ADT panels. Weighing just 2.79 pounds and made in Vietnam, it delivers consistent, reliable power to keep your home security running smoothly. Trusted for durability and compatibility, it’s the go-to replacement battery for professionals who demand uninterrupted protection.
| Manufacturer | Casil |
| Brand | Casil |
| Model | CA1240 |
| Item Weight | 2.79 pounds |
| Product Dimensions | 3.58 x 2.76 x 3.94 inches |
| Country of Origin | Vietnam |
| Item model number | CA1240 |
| Batteries | 1 12V batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | CA1240 |
| Amperage | 4 Amps |
| Voltage | 12 Volts (DC) |
S**L
I WOULD GIVE 5 STARS BUT SYSTEM ISN'T LETTING ME DO THAT. Read review for more details.
NOTE: For use as the backup battery for my Honeywell home burglar alarm, it didn't immediately clear the keypad's "low battery" message. Fortunately, I looked for more info. online and learned that the battery could require several hours of charging time before the message would be cleared. (I think I had to enter the alarm entry code a couple of times, too, which happens when the system needs to refresh.)After about 3 hours, the message had cleared and the keypad was ready to be armed.
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!
B**B
As shown
Exact replacement for alarm batteryOriginal lasted 8 yrsSame brand should yield similar resultsVery cheap. My last alarm battery was 4 times this price
D**O
Great battery for the price.
Works great! Fast shipping. Thanks, A+.
J**6
good quality
ok
R**B
Alarm System Backup Battery
Works as listed
J**H
Security battery
Just as ordered
T**G
Easy to switch out
It was easy to identify this as the replacement I needed from the battery I had and my alarm guide. Fit my ADEMCO home alarm system perfectly. Delivered quickly; was in fine shape. Very easy to switch out with the dead battery that needed replacement. Simply disconnected old one, put new battery in place, and reconnected the wires. Had no impact on my alarm. No need for a repair visit from the alarm company. Perfect.
Trustpilot
1 week ago
1 month ago
