Introduction to the Ajax CR123A Lithium Battery (ITM005737)
TheAjax CR123A Lithium Battery, 3.0 V Single Cell (ITM005737)is a purpose-built primary (non-rechargeable) battery intended for use in Ajax security devices and any other electronics that accept CR123A cells. Compact, long-lasting and chemically stable, CR123A lithium cells are a common choice for detectors, sirens, cameras and other low-to-moderate drain devices where reliable power and long shelf life matter.
This SKU is sold as a single cell, with a nominal voltage of3.0 Vand a lithium (Li‑MnO2) chemistry. It is marketed as an Ajax Fit product — designed to be compatible with Ajax Jeweller detectors, sirens and transmitters — and emphasizes long storage life and dependable single-cell replacement simplicity.
Key features at a glance
- Form factor:Standard CR123A (approx. 17 mm × 34.5 mm)
- Voltage:3.0 V nominal
- Chemistry:Primary lithium (Li‑MnO2)
- Rechargeable:No — primary cell (do not recharge)
- Shelf life:Up to 10 years when stored correctly (typical)
- Compatibility:Designed for Ajax Jeweller detectors & sirens and devices that specify CR123A
- SKU:ITM005737
- Recommended retail price:$6.99 (single cell)
Detailed specifications and benefits
The Ajax CR123A offers the familiar advantages associated with single-use lithium CR123A cells. While this SKU does not publish a manufacturer-specified capacity on the product page, the cell’s chemistry and format give clear expected performance characteristics that make it attractive in many security and backup-power applications.
The Li‑MnO2 chemistry delivers a stable nominal voltage of3.0 Vand maintains voltage under a range of loads better than many alkaline alternatives. That stability is valuable for alarm sensors, wireless transmitters and smoke or CO detectors, where predictable operating voltage helps the device perform its monitoring, signaling and communications tasks reliably.
Typical CR123A lithium cells can retain usable charge for up to a decade when stored in cool, dry conditions. For security systems and infrequently accessed backup batteries, that long shelf life reduces the need for frequent battery replacement and the chance that a battery will fail prematurely while in storage.
The standardized CR123A dimensions (approximately 17 mm × 34.5 mm) make these cells compatible with a wide range of devices that specify CR123A. This Ajax-branded SKU emphasizes compatibility with Ajax Jeweller products, reducing the risk of fitment issues or incorrect polarity when replacing batteries in these systems.
As with all primary lithium cells, there are important safety rules: do not attempt to recharge, do not short-circuit, do not puncture or incinerate, and always install with the correct polarity. Dispose of used batteries at an approved recycling or collection point in accordance with local regulations. These precautions protect against fire, leakage and environmental harm.
Use cases and scenarios where the Ajax CR123A excels
CR123A lithium cells are widely used in security and portable electronics because of their energy density, stable voltage and long shelf life. The Ajax CR123A ITM005737 is particularly well-suited to the following scenarios:
- Home and small-business security systems:Replace batteries in Ajax Jeweller detectors, motion sensors, door/window sensors and sirens where a dependable, single-cell replacement is required.
- Backup power and emergency devices:Ideal for devices that need to remain functional after long storage, such as emergency lighting modules, battery-backed sensors and remote paging devices.
- Outdoor or seasonal equipment:For battery-powered devices used intermittently or seasonally (e.g., outdoor cameras, remote sensors), the long shelf life and low self-discharge are benefits.
- Low-to-moderate drain electronics:Devices that draw steady but not extreme current — such as wireless transmitters, alarm sensors and some flashlights — will benefit from the stable voltage profile.
Comparisons with similar products in the market
To evaluate ITM005737, it helps to compare it to other CR123A options and to alternative battery types commonly considered for security hardware.
Established brands such as Energizer, Panasonic and Duracell publish capacity specifications and datasheets for their CR123A cells, which typically range around a certain mAh value depending on load conditions. The Ajax ITM005737 page indicates that capacity data is not specified on this SKU; if you require exact capacity figures, request the manufacturer datasheet. In practice, quality CR123A lithium cells from reputable manufacturers deliver similar performance in voltage stability and shelf life, so choosing an Ajax Fit cell ensures mechanical and brand compatibility with Ajax security products while still offering the fundamental benefits of CR123A chemistry.
Alkaline cells are not commonly produced in the CR123A format and generally offer lower energy density and poorer low-temperature performance than lithium CR123A. For devices requiring reliable operation at low temperatures or long shelf storage, lithium CR123A is superior.
Rechargeable Li-ion cells with similar dimensions (often labelled RCR123 or 16340) offer the advantage of reuse but have lower nominal voltage (typically 3.6–3.7 V when fully charged) and different discharge characteristics. Many devices designed for CR123A expect the 3.0 V primary cell and may not be compatible with rechargeable substitutes. The Ajax ITM005737 is a primary cell and should not be replaced with a rechargeable cell unless the device manufacturer explicitly permits it.
At a suggested retail price of$6.99for a single cell, the Ajax CR123A is positioned as a premium replacement for security devices where compatibility and reliability are priorities. Buying in bulk or selecting well-known brand alternatives may yield lower per-cell prices; however, for guaranteed compatibility and Ajax Fit validation, this SKU offers convenience and peace of mind.
Customer testimonials and reviews
At the time of this writing, specific verified customer reviews for ITM005737 are not included with the product listing. That said, general user feedback for CR123A lithium cells (and Ajax-fit batteries) tends to emphasize several recurring points:
- Reliability: Users appreciate the stable voltage and long service life in security sensors and wireless devices.
- Compatibility: Owners of Ajax systems report that branded or Ajax-fit cells reduce the likelihood of installation issues compared with non-specified substitutes.
- Value for money: While single cells can seem expensive individually, the long shelf life and reduced replacement frequency are seen as a net benefit for security applications.
If you have experience with this specific SKU, adding a short review about fit, runtime and perceived value helps other buyers. Sellers or product pages often encourage customers to submit feedback after purchase.
Practical tips for installation, storage and disposal
- Installation:Always install with the correct polarity. Consult your Ajax device manual for step-by-step battery replacement instructions.
- Storage:Keep spare batteries in a cool, dry place away from direct sunlight and extreme temperatures to maximize shelf life.
- Disposal:Do not throw lithium batteries in household trash. Recycle or dispose of at approved collection points in accordance with local regulations.
- Compatibility check:Confirm your specific Ajax device model lists CR123A in its manual before purchasing to avoid incompatibility issues.
Conclusion: Why choose the Ajax CR123A ITM005737?
TheAjax CR123A 3.0 V Lithium Battery (ITM005737)is a straightforward, dependable option for anyone maintaining Ajax security equipment or other devices that specify CR123A cells. Its primary lithium chemistry delivers stable voltage, strong shelf life and excellent performance in low-temperature and long-storage scenarios. While capacity details for this SKU are not specified on the product page, the form factor, chemistry and Ajax Fit compatibility make it a practical choice when reliability and correct fit are priorities.
Choose this battery when you want a trusted, single-cell replacement for sensors, sirens and transmitters in your Ajax ecosystem. If you need precise capacity numbers or a datasheet for formal records, contact the seller or confirm the manufacturer to obtain the official specifications. For homeowners and small-business owners who depend on consistent operation from their security systems, the Ajax CR123A ITM005737 is a sensible and convenient power solution.
