Introduction: Pyronix BATT-CR/KF1 3V CR1/3N Keyfob Battery
Genuine Pyronix replacement battery for the Mk2 Enforcer keyfob.The Pyronix BATT-CR/KF1 is a purpose-made 3V CR1/3N lithium cell supplied with pre-soldered tabs to fit directly into the Mk2 Enforcer wireless keyfob. Designed for installers, maintenance technicians and DIY users who need a reliable, OEM-grade replacement, this battery pairs the right physical fit with the electrical performance expected from alarm-system components.
The BATT-CR/KF1 balances compact size with useful capacity (typically 160–170 mAh), a long shelf life when stored correctly, and the convenience of factory-fitted tabs that make installation quicker and reduce handling during replacement. At a suggested retail price of .99, it represents a straightforward, low-cost maintenance item for Pyronix Mk2 Enforcer users.
Key features at a glance
- OEM fit:Specifically compatible with Pyronix Mk2 Enforcer keyfob holders.
- Pre-soldered tabs:Factory-fitted tags for direct installation and secure electrical contact.
- Reliable chemistry:Lithium manganese dioxide (LiMnO2) for stable voltage and long shelf life.
- Compact, lightweight:Small coin-style cell (Ø ~11.6–11.8 mm × height ~10.6–10.9 mm; ~3 g).
- Good capacity:Typical energy storage ~160 60 70 mAh, suitable for low-current keyfob use.
Detailed specifications and benefits
Understanding the technical details helps explain why this battery is a sensible replacement choice for the Mk2 Enforcer keyfob. The BATT-CR/KF1 is built on a CR1/3N form factor (also cross-referenced as 1/3N, 2L76, DL1/3N in some datasheets). Its nominal voltage is 3.0 V and its nominal capacity is typically 160 60 70 mAh. These figures mean the battery provides a stable 3V source suitable for the low-power transmitters and processors used in wireless keyfobs.
Dimensions are tightly controlled to ensure a reliable mechanical fit: approximately Ø 11.6 6 11.8 mm by 10.6 6 10.9 mm in height. Typical weight is about 3 g. The cell chemistry is lithium manganese dioxide (LiMnO2), a common primary (non-rechargeable) chemistry for high-energy, small-format cells that combine good shelf life with stable discharge characteristics at low currents.
Several practical specifications matter when this battery is used in security keyfobs. Typical recommended continuous discharge current is around 3 mA for long life in standby-type devices; manufacturers often quote recommended currents so users can estimate expected service life. The cell is capable of handling short pulses of higher current—some datasheets for similar cells list pulse handling up to a few hundred milliamps for very short durations—suitable for occasional RF transmission bursts. Operating temperature is typically listed between 620 6C and +60 6C, but installers should consult any official Pyronix guidance or the battery datasheet for precise limits.
Benefits of the pre-soldered tabs: The pre-fitted tabs are a defining practical advantage. They reduce the need for manual soldering skills (or fiddly wire work) during replacement, lower the chance of misalignment or poor contact in the keyfob holder, and speed up installations for professionals who replace many units. Tabs also reduce direct handling of the cell, which is beneficial from both an electrostatic and a cleanliness perspective.
Safety and compliance: This is a primary (non-rechargeable) lithium battery. Do not attempt to recharge. Follow local guidance for safe disposal and recycling—most UK guidance recommends returning used batteries to designated collection points. Keep cells out of reach of children, and when replacing a keyfob battery, follow manufacturer instructions or power down equipment where appropriate to avoid accidental alarm triggering. Always consult the manufacturer datasheet for detailed operating limits and safety notes.
Use cases and scenarios where the BATT-CR/KF1 excels
The BATT-CR/KF1 is purpose-built for a narrow but important set of applications, and it performs best where those needs are prioritized:
- Home security maintenance:Homeowners replacing batteries in older Mk2 Enforcer keyfobs will find an exact physical and electrical match, reducing troubleshooting time and ensuring continued reliable operation.
- Commercial and professional installers:Alarm companies and technicians who service properties appreciate the time savings from the pre-soldered tabs and the peace of mind that comes with an OEM replacement part—fewer call-backs and compatibility checks.
- Batch refurbishments:When refurbishing or recommissioning multiple keyfobs, having a ready-to-fit, tabbed cell speeds workflow and reduces the risk of poor contacts that can cause intermittent faults.
- Low-power wireless devices:Any small transmitter or sensor that specifies CR1/3N cross-references (and which requires the tab format) can be a candidate, provided the fit and operating limits match the device requirements.
In short, the battery is ideal where OEM fit, installation speed and predictable performance matter more than absolute minimal cost per cell.
Comparisons with similar products in the market
There are a few categories of alternatives to a genuine Pyronix BATT-CR/KF1:
- Generic CR1/3N cells without tabs:These are often cheaper per cell and electrically similar, but they require either soldering on tabs or using a different holder. That adds labour, increases the risk of poor connection, and may void any device-specific guidance. For installers replacing many units, time spent fitting tabs can outweigh small parts savings.
- Aftermarket tabbed cells:Non-branded batteries with pre-fitted tabs exist and sometimes match the physical form. The trade-offs are variable quality control, differences in shelf life and pulse capability, and potential dimensional variances that can affect fit. Choosing a reputable supplier and checking dimensions is important.
- Different chemistries or larger cells (e.g., CR2032):These are not direct substitutes due to different voltages, sizes and connector needs. CR2032 is larger in diameter and thinner; it will not fit or may provide different contact geometry—so it is not recommended unless a device explicitly accepts it.
- Rechargeable alternatives:Rechargeable lithium-ion or LiPo cells are not suitable replacements for primary CR1/3N cells. Primary cells are designed for long-term storage and current pulses without recharge; rechargeable cells have different voltages, charging requirements and potential safety concerns if misapplied.
Overall, a genuine tabbed Pyronix BATT-CR/KF1 is likely to be the best option for those with Mk2 Enforcer keyfobs because it minimizes fitting issues, meets the intended mechanical and electrical specifications, and reduces the chance of compatibility problems that can cause alarm or transmitter failures.
Customer feedback and representative comments
While individual experiences vary, installers and end users who replace keyfob batteries typically comment on a few recurring points. Below are representative customer-style comments that reflect typical feedback from professionals and DIYers when switching to a genuine tabbed replacement:
- "Saves time—no soldering needed. The pre-fitted tabs mean I can swap batteries quickly during service rounds."
- "Exact fit. No rattles or intermittent contact after replacement, and the keyfob resumed normal operation immediately."
- "Good shelf life—kept spares in stock without worrying about quick discharge."
- "Worth paying a little more for the OEM part rather than risking a generic cell that needs modification."
These comments are typical of installer forums and product feedback channels; prospective buyers should always check current user reviews from their supplier or reseller for the latest, real-world experiences.
Conclusion: Why choose the Pyronix BATT-CR/KF1?
The Pyronix BATT-CR/KF1 3V CR1/3N replacement battery is a focused, practical solution for maintaining Mk2 Enforcer keyfobs. Its OEM compatibility, pre-soldered tabs, and appropriate electrical characteristics make it a low-risk, convenience-driven choice for both professional installers and informed DIY users. With typical capacities of 160 60 70 mAh, a compact form factor and long shelf life when stored correctly, it delivers the predictable performance needed in security applications where reliability matters.
Compared with generic cells or non-tabbed alternatives, the BATT-CR/KF1 reduces installation time and the potential for bad contacts or fit issues. It is not a universal battery for every small device, but where the Mk2 Enforcer specification or cross references match, it is a practical and cost-effective OEM replacement, offered at a suggested price of .99.
Before replacing batteries, follow safety guidance: power down the device if instructed, avoid recharging a primary cell, and dispose of used batteries via appropriate recycling channels. For installers servicing multiple systems, stocking the Pyronix BATT-CR/KF1 can reduce time on site and give customers confidence in a genuine OEM component that meets the intended fit and function requirements.
