Features:

  • Casil CA-1240 12 Volt 4 Amp Sealed Lead Acid Hi-Capacity Rechargeable Battery
  • Length: 3.54" (90 mm) Width: 2.76" (70 mm) Height: 4.02" (102 mm) - F1 Terminal
  • Compatible with Honeywell, DSC, GE, ADT, Monitronics, Brinks, First Alert
  • Perfect replacement for ExpertPower EXP1240, UPG UB1240, MightyMax ML4-12, Power-Sonic PS-1240, Power King PK1240 and many more!
  • 2 Year Warranty From AAA Security Depot Since 1991
I would buy from them again.

I needed to replace my ADT Alarm Systems battery. This was the identical one that I needed. They were fast with delivery, which really helped!!! I would buy from them again.

The Battery Works for My Alarm System

Before ordering the battery, I made sure it was the correct battery by referring to the alarm system documentation. I downloaded the installation instructions from the alarm system website and followed the instructions. Everything worked out fine and the system has a new backup battery that seems to work - haven't had any power failures. I can't comment on longevity, because I haven't had the battery for too long.

Worked!

Worked as expected. I’m glad I read that it takes a few hours for the low battery warning to go away otherwise I would have panicked. The only problem I had was one of the terminals was bent flat so I had to pry it open but it was easy.

Easy DIY but make sure you get the exact same rated battery (V and Ah)

Very easy to replace this battery in the home alarm system. Unplugged the old one and plugged in the new one. Watched a few youtube videos first to see what the recs were about needing to turn off the power or reset the panel. I did not need to turn off the power at the breaker. When choosing a battery, the key thing is to match the correct Voltage and Ampere of the original battery. I went to several stores that only sold 5Ah or higher that look the same. My system needed 4Ah and I bought it here online. It took a few hours to a day for the “Batt” indicator on the alarm panel to go out. No codes needed to ‘reset’ it.

Perfect first impressions

Bought this battery as a replacement for my home alarm system. It's exactly the same make, and fit perfectly. No complaints so far. I will update on the battery's performance after the next power outage.

Easy to install - fits my security panel perfectly

I was happy to see this is identical to the battery from my security panel - popped the other one out and popped this one in and all is working fine.

Perfect replacement!

This battery is exactly like the one we pulled out of our alarm system. It arrived very quickly. After it charged for an hour or so the LO BAT sign went off and it seems to be working great!

Battery Replacement

It worked as it's supposed to for an alarm application. It is the exact replacement battery from the manufacturer. Thanks for a great product and fast delivery SamMedina

Buy from AAA Security Depot

I rarely leave feedback but felt I needed to after the assistance I got from this seller. The item I bought (backup battery for alarm system) had many reviews of old, faulty batteries or items that did not match the description. While it has only been a week, the battery I received had a manufacture date of this year and matched the product description. I replaced my old battery hoping to be done with the beeping errors, but unfortunately after a few hours, the alarm system chirped again with the low battery error. I then read online that it can take up to 48 hours to charge the new battery. After 3 days I was still getting the low battery error. Time to call Amazon and complain. Amazon tells me because the item was shipped directly, they could not refund or replace the item, but then connected me with AAA Security Depot. That customer service rep told me they would replace the item it needed, but first wanted me to try resetting the alarm system by unplugging it for an hour putting it into test mode. I thought they were trying to string me along, but low and behold after doing as I was told, the error went away and the battery seems to be working fine. While the longevity of the battery is yet to be seen, I want to appreciate the seller for their friendly and helpful customer service, and hopefully I can update this review in a year or so with a positive battery status.

Reliable battery

I bought the same battery in 2016. It had a two year warranty.Is still good. I bough this new one because I had faulty signals from the Security system they were coming because the charger was not charging properly. I trust Casil for their batteries, the only one I saw to offer two years warranty.

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