AJC 12V 7Ah Replacement Alarm Battery Review

AJC Replacement Battery


It’s important to keep in mind that backup batteries will lose their capacity to charge over time. As a rule of thumb, this occurs between the third and fifth year of usage (though it varies per model). A low-battery alert will be shown if a battery can no longer hold enough charge.

If the system does not identify a battery or if the battery has been allowed to deplete too far without being given a chance to recharge while the system is operating on AC power, you will get the same warning. If your system has a low battery issue, you may attempt to let the battery charge for 24 hours while plugged into an electrical outlet.

Check that there are no interruptions or outages in AC power. Then, using your panel’s instructions, attempt to clear the issue situation. There is probably a requirement for a replacement if you cannot remove the low-battery alert or your system shows low battery and then recovers when there has been no AC loss issue. Be careful you get a battery that works with your gadget.

Brand AJC
Power Source Electric
Item Dimensions (LxWxH) 5.94 x 2.56 x 3.7 inches
Material Components and raw
Color Black
Style Rechargeable
Item Weight ‎4.4 pounds
Pros  Cons
High Capacity Voltage drops as the battery discharges
Cheap Resistance slows charging time
Durable Easy damage

What Is an Alarm Battery?

An alarm system’s backup battery slowly stores power while the panel runs on AC. When AC power is gone, the battery takes over. A backup battery is temporary. Until AC power is restored, it’s a temporary remedy. Always having an alarm on is crucial. Monitoring cannot be conducted when a system is off, leaving the house or company insecure. Backup batteries guarantee that security systems always work.

The backup battery’s form and size depend on the alarm panel. Wireless all-in-one panels feature a battery that connects to the main board. Wired panels require car-sized batteries. Despite their size, they fit within the panel’s metal shell. The battery’s fundamental function is the same. It keeps a system’s accessories running when the power goes off.

A system’s backup battery slowly stores power while operating on AC power from its plug-in transformer. So, it will work when the AC power is gone. This may be caused by a power loss or a disconnected transformer. The panel will indicate an AC power outage.

If the battery lasts, the system will function on backup power. Most batteries last four to 24 hours. Consult the panel and battery specs to determine power time. Battery power is transitory. AC electricity is preferable. A backup battery for an alarm system keeps the communicator functioning. This connects the system to a cellular and internet network. 

Features of AJC 12V 7Ah Replacement Alarm Battery

High Capacity 

Capacity is one of the most important elements of a battery. Because the battery capacity is an element that shows how long the battery can be used. For this reason, you want your battery to be durable, inexpensive, and high-capacity. Moreover, if you use the battery for the alarm system, the battery’s capacity becomes even more important.

If the power outage lasts a long time, your battery may need to run the alarm system for a long time. In such cases, it is necessary to prefer high-capacity batteries to avoid being a victim. The AJC 12V 7Ah replacement alarm battery is a high-capacity battery. It provides you security in case of sudden power cuts.

Besides, if the power outages last for a long time, there is no doubt in your mind. Because the AJC battery is a high-capacity battery. If you buy a high-capacity battery, you do not need to purchase an additional battery. Thanks to its high capacity, it can handle you for a long time. In this way, you will get rid of the cost by not buying an additional battery. In short, it also contributes to your savings.


The high-capacity battery will make your job easier. However, finding a high-capacity and inexpensive battery will make you very happy. We try to buy both quality and cheap products when purchasing batteries and other products you buy. However, this may not always be possible because getting quality cheap is not always easy.

The AJC 12V 7Ah replacement alarm battery is inexpensive compared to batteries that perform similar tasks. It allows you to save. With these savings, you can give priority to your other mandatory expenditures. You can allocate this budget for a social event with your family. Drinking a coffee with your friends can be thanks to these savings. So, finding a high-capacity, high-quality and inexpensive battery will please you in many ways.

The AJC battery is a product that can provide this satisfaction. Some people interpret the fact that the product is cheap as being of poor quality. However, this is not true. Because the AJC battery offers its features at a low price, this is a feature that all consumers are looking for.


One of the most important considerations when purchasing batteries is durability. Because you want to use the product you bought for many years, this request is perfectly normal. The AJC 12V 7Ah replacement alarm battery has features that can satisfy you in terms of durability. You can use this product for many years besides its high capacity and low cost.

For consumers, long-term use is a desired feature of the purchased product. When it comes to lead, AJC Battery only utilizes the fresh kind. The performance and longevity of batteries may be drastically impacted by lead contamination. High-quality, reliable batteries are produced thanks to a rigorous manufacturing process that removes even the smallest contaminants.

AJC Battery is an AGM battery. As they can store a lot of energy without being drained of water, AGM batteries are a fantastic alternative for electric cars. Because they are sealed and don’t need air or cooling, AGM batteries are also great for places with low temperatures. AGM batteries, on the other hand, are often more costly than other battery options. AGM batteries are ideal if you require a high-capacity battery that doesn’t leak acid into the environment.


The fact that a battery is rechargeable is always advantageous to the consumer. Because when the electricity is cut off, and you use the battery, you do not need to buy a new battery. When the electricity comes back, you can charge your battery and prepare it for emergencies.

Buying new batteries over and over will be costly. However, the AJC 12V 7Ah replacement alarm battery is rechargeable. The AJC replacement battery is a highly preferred product due to its durability, cheapness, and ability to be recharged. Because consumers do not want to pay for batteries, again and again, being rechargeable will save you money. So, it will allow you to save money. You can use your savings in any field you want.

Thanks to being rechargeable, you also protect the environment. Battery production can thus be limited. Instead of buying a new battery, you can use the product you have charged for. In this way, you support environmental policies.

When it comes to quality, AJC Battery never compromises and always provides its clients with top-notch goods that meet or exceed industry standards. Quality control measures and processes are established, executed, and maintained at every stage of production, from sourcing components and raw materials to shipping finished products.

Final Verdict

A dead battery in the alarm is no joke. These days, power disruptions often occur suddenly. That’s when a battery comes in handy. An AJC 12V 7Ah replacement alarm battery is a great option when the original battery dies. One of its selling points is that it can be recharged several times, which lasts a long time and is still useful after each charge.

Meanwhile, its enormous capacity means it can support you for a considerable amount of time. All these options are readily available and at low prices. The AJC battery provides all these benefits at a low cost. You won’t ever be sorry you bought this thing; rather, you’ll feel content with your purchase.

The AJC battery also has AGM technology. AGM also provides all the advantages of technology. It works effectively and efficiently. Never doubt that it will increase your satisfaction. It will exceed your expectations.

AJC Battery Compatible with ADT 477967 12V 7Ah Alarm Battery
  • This is an AJC Brand Replacement for a ADT 477967 12V 7Ah Alarm Battery
  • Voltage: 12V (12 Volts)
  • Capacity: 7Ah
  • Terminals: F1

Top Amazon Customer Comments

Ted – ⭐⭐⭐

Review: The price was right on this battery. My ISP wanted 3x the money; but this battery needed to be replaced in 20 months.

oilteq – ⭐⭐⭐

Review: I have purchased 3 of these batteries on 2 different orders. My the tabs on the first one were much larger than the original, and I had to change the connectors on the alarm system to make it work. The next 2 batteries on the following order had small tabs that made for easy replacement.

Jin Lai Li – ⭐⭐⭐⭐

Review: Good replacement battery except battery terminals did not fit alarm system so the wire ends of the system had to be bent to fit battery terminals.

Lori – ⭐⭐⭐⭐⭐

Review: The detailed description and dimensions is why this replacement battery was purchased. The battery was packaged well, arrived quickly, fit the model, was easy to install, and works perfectly.

joaniepoo60 – ⭐⭐⭐⭐⭐

Review: Purchased 2/18/16. Battery arrived before promised date; was easy to connect and is working well so far. The only suggestion that I have is that instructions should be included stating that the battery has to charge after connecting before it is functional; mine took 3.5 hrs.

cp – ⭐⭐⭐⭐⭐

Review: Received promptly, simple install & works as expected for security system

jopa – ⭐⭐⭐⭐⭐

Review: This battery works as described. I have installed in for more than a month now and just had a power outage for 8 hrs. and it lasted the whole time.

Web – ⭐⭐⭐⭐⭐

Review: I’ve been using this brand for almost a decade now and this is my third replacement. No complaints so far and love the quick shipping.


  • Bayram Sarıkaya

    I am very curious about batteries, devices that charge batteries and these topics. I share reviews, comparisons and news for people who are curious about these issues.

Leave a Comment

Your email address will not be published. Required fields are marked *