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About CASIL
Casil has provided more than 35 million batteries to the worldwide fire and intrusion market since 1998.
During the past 23 years, CASIL has earned the approval of nearly every large fire/intrusion alarm manufacturer .
In addition, CASIL has supplied the largest global security services companies.
Specification
- AGM - Absorbed Glass Mat High Performance
- Maintenance Free
- Terminal: F1
- Weight: 4.23 LBS
- Dimension: L 5.94" x W 2.56" x H 3.68"
Customer
2025-08-15 17:14:38
I was pleasantly surprised that this came fully charged at 6.57v out of the box. I'll probably order another one as a hot spare.A couple of notes for the Simon XT:The panel was plugged in when I replaced the battery, and the low battery fault would not clear (status/disarm) after the new battery was installed even though it was charged. Both the panel and voice kept reporting a low battery.To fix this I unpluged the panel from AC and disconnected the new battery, then reconnected the battery first, waited a minute or two, then pluged the panel into AC power. The power sequence has been important over the years during other trouble shooting and it appears this is no exception as the panel then cleared the battery fault and pressing the status button returned the "system ok" message.Keep in mind that if the new battery is below 5.4v out of the box, the panel will correctly report a low battery condition until it has been charged to the minimum acceptable voltage for the fault to clear. You can check the new battery with a multimeter before installation, or once installed, press and hold the number 6 button on the panel for about 10 seconds and the battery voltage will appear on the screen.So, if the battery is charged and the fault hasn't cleared, disconnect and reconnect as above. If the battery is below 5.4v, use the same installation sequence but expect the low battery fault to persist until it has been charged.
Patrick D Sherlock
2025-08-08 12:38:47
Easy to install and great price. Why pay $50 just to have Mercedes name on the battery? Buy this one instead. Recommend.
Mel S. Randall
2025-07-20 11:27:21
Long life with full power; no problems.
Carolyn Andrews
2025-06-20 18:13:59
The product received yesterday and is installed and working. However, the dimensions listed in the description are wrong. I was fortunate that the product as delivered JUST fit. Amazon should correct the product description. The delivered product dimensions are: 4 in high, 3.5 wide, 2.5 deep.
Gary G
2025-06-16 12:33:47
The battery in my alarm system was sending error messages to the panel. Was able to find this exact match for the prior battery. It was quick and easy to swap them out and the new battery works just fine. Hopefully I get the same 10 year lifecycle from this one.
Becky's Bookshelves
2025-05-30 15:30:49
Worked with our ADT system. Much less than battery store.
Scots
2025-05-10 13:24:00
Bought in August 2024 and it died end of Jan 2025 - will not purchase again for our Alarm system.
George
2025-04-14 14:18:02
Perfect replacement for Verizon Fios 12v 8ah AGM Battery with F2 terminals.
Waqar Qadeer
2025-03-25 12:55:08
Good quality product. Will recommend
WSV
2025-02-22 15:30:41
Couldn’t find this battery in any stores, so I took a chance ordering this online. The seller was so accommodating to make sure it was sent out as quickly as possible, and it was exactly what we needed. A very happy ending!
Customer
2024-11-29 13:16:47
Works and lasts like the original.
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