Tenergy 3.6V 1/2 AA Lithium Battery, 1200mAh ER14250 Non-Rechargeable Batteries for Window Sensors, Alarm Systems, Home Security Sensors, Utility Meters, UL Certified, 4 Pack
Tenergy 3.6V 1/2 AA Lithium Battery, 1200mAh ER14250 Non-Rechargeable Batteries for Window Sensors, Alarm Systems, Home Security Sensors, Utility Meters, UL Certified, 4 Pack
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About This
- 4 Pack of Ultra-high energy ER14250 - Non-Rechargeable 1/2 AA lithium thionyl chloride battery packed with 1200mAh capacity. Ideal for dog bark collars, security sensors, electric meters, water meters, smoke detectors, fire alarms, and many more!
- Wide temperature performance - Delivers consistent and reliable power whether it's as cold as -67°F or as hot as 185°F.
- Tenergy’s 14250 battery can hold its power for nearly a decade in storage. The a low self-discharge rate of 1% means these 1/2 AA batteries will be ready-to-use.
- These ER14250 batteries are extensively tested and certified by the most stringent battery standards set by UL and passes UN transportation tests (T1-T8).
- Included with every purchase of Tenergy's 1/2 AA lithium batteries is free lifetime support from our local team based in California. Have a question or concerned about compatibility? Contact us for support and our knowledgeable team is happy and ready to provide assistance.
Overview
- Number of Batteries : 4 Product Specific batteries required. (included)
- Brand : Tenergy
- Battery Cell Composition : Lithium-Thionyl Chloride (Li-SOCL2)
- Battery Capacity : 1200 Milliampere Hour (mAh)
- Recommended Uses For Product : Indoor/Outdoor

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SMART HOME FAQ
Yes — many modern devices support multiple platforms.
Matter-certified devices can work across Alexa, Google Home, and Apple HomeKit at the same time.
Not always.
Smart bulbs, plugs, cameras, and video doorbells are often easy DIY installations, while full security systems may need professional setup.
Many devices still work manually or through local control.
You may lose remote app access, but locks, lights, and thermostats often continue basic functions.
Security depends on the device and setup.
Use strong passwords, trusted brands, firmware updates, and secure Wi-Fi for better protection. Privacy and unauthorized access are common concerns in smart homes.
Most homeowners start with:
Smart Security Cameras
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Yes.
Smart thermostats and smart plugs help reduce wasted energy by automating heating, cooling, and power usage.
It depends on your ecosystem.
Alexa → widest compatibility
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Apple HomeKit → best privacy
Home Assistant → advanced control
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