10 Best Xfinity Alarm Backup Battery of 2025

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  Genuine ExpertPower Battery - The Most Trusted And Highest Reviewed Sealed Lead Acid Batteries On Amazon
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  Battery Type - 12 Volt 5 Amp/20 Hour Sealed Lead Acid Battery With F2/F1 Terminals.
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  Compatibility - Perfect Fit For A Wide Variety Of Applications Including Home Alarms, Electric Scooters, Ion Block Rockers, UPS Systems, and Much More.
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  Quality Assurance - Crafted Wtih A Rugged Construction, Our SLA Batteries Are Ultra Durable And Utilize Absorbed Glass Mat (AGM) Technology Which Provides A Wide Temperature Range.
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  User Friendly - Easy, One-Time Installation Of Our Maintenance Free and Valve Regulated Batteries Will Get Your System Or Application Running In No Time At All.

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  For best performance and warranty support of your APC UPS, use only genuine APC replacement batteries
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  Each APC Replacement Battery Cartridges (RBC) is tested and certified for compatibility to restore the performance of your APC UPS to original specifications
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  RBC17 is compatible with many APC UPS models including BE650G1, BE750G, BR700G, BE850M2, BX850M, BE650G, BN600, BN700MC, BN900M, BVK950M2, BVN950M2, and select others
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  APC WARRANTY: APC branded batteries are backed by a 2 year Manufacture Warranty

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  ML5-12 SLA is a 12V 5AH Sealed Lead Acid (SLA) rechargeable maintenance free battery - UL Certified

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  CA1240 12v 4ah alarm battery: the ca1240 12v 4ah alarm battery is a high-quality lead acid alarm battery designed for numerous home and security alarm systems.
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  Casil ca1240 12v 4ah alarm battery: the casil ca1240 12v 4ah alarm battery is a premium product, offering an extended lifespan and ultimate reliability. providing 1 year prorated warranty.
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  Security system battery replacement: upgrade your security system with our 12v 4ah alarm battery. length: 3.54" (90 mm) width: 2.76" (70 mm) height: 4.02" (102 mm) - f1 terminal
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  Alarm battery: compatible with honeywell, dsc, ge, adt, monitronics, brinks, first alert, exp1240, upg ub1240, mightymax ml4-12, power-sonic ps-1240, power king pk1240 and many more!
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  Lead acid alarm battery: our ca1240 12v 4ah alarm battery is a lead acid alarm battery, providing strong and consistent power supply for your home alarm battery needs.

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  Compatible with Models:Home Security Touch Screen
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  Dimensions: 74.70 x 55.00 x 9.30mmGross Weight: 106.4g / 3.75oz
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  Type: Li-Polymer,Voltage :3.7V,Capacity :4500mAh,WH:16.65Wh
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  Certificated with ISO9001, RoHS, CE, UN38.3, and MSDS
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  We offer a one-month free replacement or full refund if any product problems arise

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  Unbeatable warranty; top notch customer service from real battery experts; 18 months warranty with 60-day refund policy ; U.S. Orders Only

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  Rechargeable Battery Compatible with Technicolor U46P313.00
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  Works for Xfinity iControl Technicolor Alarm System and many other models
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  Li-Pol, 3.7V, 2800mAh
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  This battery is made with high quality Japanese cells, it is designed to meet or exceed the original battery performance.
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  Long Lasting, Ultra Hi-Capacity Battery

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  Rechargeable Battery Compatible with Technicolor U46P313.00
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  Works for Xfinity TCA300COM Alarm System and many other models
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  Li-Pol, 3.7V, 2800mAh
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  This battery is made with high quality Japanese cells, it is designed to meet or exceed the original battery performance.
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  Long Lasting, Ultra Hi-Capacity Battery

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  Works for Cox Xfinity Panoramic xFi Voice Gateway.
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  You must have phone service by your internet service provider in order to use the Battery Back-Up Option.
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  This Battery Pack doesn't support the Internet part of the Modem.
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  Battery Pack provides 5 Hours of Talk Time.
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  An analog phone must be connected directly to the unit to have E911 service in case of electrical outage.