Mighty Max Battery 12V 7Ah Battery Replacement for Home ADT Security Alarm System

I purchased this Mighty Max 12V 7Ah battery as a replacement for the backup battery in my ADT home security alarm panel, and it worked perfectly. If your system is showing a low battery warning, this is a straightforward and affordable fix that most people can handle themselves. The battery itself appears well made and is a sealed SLA / AGM design, which means it’s spill-proof and designed for reliable performance. It’s rated for a high discharge rate, wide operating temperatures, and long service life, which is exactly what you want for a backup power source in a security system. Installation was surprisingly simple. I started by putting my alarm system into test mode. After opening the panel, I unplugged the tan power outlet and removed the old battery by disconnecting the negative (black) wire first, then the positive (red). I placed the new Mighty Max battery in the same spot and connected the negative first, then the positive, and finally plugged the tan power outlet back in. Once I took the system out of test mode, the panel immediately recognized the new battery and the low battery warning disappeared. The entire process only took a few minutes. Overall, this is a high-quality replacement battery that fits perfectly and restores your alarm system backup power quickly. If your security panel is showing a low battery message, this is an easy DIY fix that can save you a service call.

If you’re staring at a flashing "Trouble" light on your DSC keypad and your system is chirping at 2:00 AM, this is the fix you need. I used this Mighty Max 12V 7Ah to replace a dead backup battery in my DSC PC1555 system, and it was a total seamless swap. ​The Breakdown: ​Performance: It arrived fully charged and ready to go. The moment I swapped it in, the system recognized it, and the battery error cleared instantly. ​Fitment: The terminals are standard F1 size, fitting the existing leads perfectly without any crimping or modifications. ​Value: Why pay a security company $100+ for a service call when you can do this in 30 seconds? ​It’s been rock solid ever since. If you have an older ADT or DSC hardwired panel, don't overthink it—this 7Ah provides a little extra "juice" over the stock 4Ah, which is great for peace of mind during Texas storms.

So far, so good. This battery replaced one for our home alarm system, and it's worked fine for the couple of weeks we've had it. Well priced, arrived quickly.

Bought it as a replacement for battery in ADT Security System. Right fit, easy to install, works fine.

It fits and works properly for the needs of my ADT Alarm System

Advertising is a little misleading as if you don't carefully parse what they are saying you may be led to believe these batteries are manufactured in the U.S.A. They are not. They are manufactured in at least two places: Thailand & Vietnam. So far I can only say that it is a fair value.

This small battery was used for my home security system backup battery so what can I say helps keep my house secure so I can sleep better durability and longevity well you don't know but it replaced a mighty Max battery that was in the security system for about 20 years

Great product Great Price

Perfect size

Fonctionne très bien.

delivered earlier than expected easy to replce