Skip to content
BatteryClerk Prime FAST 1-2 day shipping to most of the USA
BatteryClerk Prime FAST 1-2 day shipping to most of the USA

Alarm Batteries

Replacement Alarm Batteries ensure your alarm system continues to operate even during a power outage or when the electricity is cut. Browse our current selection of replacement Alarm Batteries for some of the top alarm brands like ADT, Honeywell and Ademco.

  • AEM ARDENT alarm panel Replacement Battery-main
    $22.69 - $22.69
    $22.69
    $22.69 - $22.69
    $22.69

    AEM ARDENT alarm panel Alarm Replacement Battery

    INFO This is a replacement compatible with a AEM Alarm Battery Volts: 7.2V (7.2 Volts) Capacity: 1500mAh (1.5Ah) Type: Ni-MH Color: Green AEM ARDEN...

    View full details
    $22.69 - $22.69
    $22.69
    $22.69 - $22.69
    $22.69
  • UltraTech UT12180 12V 9Ah Alarm Replacement Battery
    $29.49 - $29.49
    $29.49
    $29.49 - $29.49
    $29.49

    AJC Battery Compatible with UltraTech UT12180 12V 9Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $29.49 - $29.49
    $29.49
    $29.49 - $29.49
    $29.49
  • UltraTech IM-1240 12V 9Ah Alarm Replacement Battery
    $29.49 - $29.49
    $29.49
    $29.49 - $29.49
    $29.49

    AJC Battery Compatible with UltraTech IM-1240 12V 9Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $29.49 - $29.49
    $29.49
    $29.49 - $29.49
    $29.49
  • UltraTech IM1240 12V 5Ah Alarm Replacement Battery
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69

    AJC Battery Compatible with UltraTech IM1240 12V 5Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69
  • UltraTech IM-12180 12V 9Ah Alarm Replacement Battery
    $29.49 - $29.49
    $29.49
    $29.49 - $29.49
    $29.49

    AJC Battery Compatible with UltraTech IM-12180 12V 9Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $29.49 - $29.49
    $29.49
    $29.49 - $29.49
    $29.49
  • Simplex 2081-9276 12V 22Ah Alarm Replacement Battery
    $63.79 - $63.79
    $63.79
    $63.79 - $63.79
    $63.79

    AJC Battery Compatible with Simplex 2081-9276 12V 22Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $63.79 - $63.79
    $63.79
    $63.79 - $63.79
    $63.79
  • Simplex 20819275 12V 22Ah Alarm Replacement Battery
    $63.79 - $63.79
    $63.79
    $63.79 - $63.79
    $63.79

    AJC Battery Compatible with Simplex 20819275 12V 22Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $63.79 - $63.79
    $63.79
    $63.79 - $63.79
    $63.79
  • Simplex 20819276 12V 1.3Ah Alarm Replacement Battery
    $8.99 - $8.99
    $8.99
    $8.99 - $8.99
    $8.99

    AJC Battery Compatible with Simplex 20819276 12V 1.3Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $8.99 - $8.99
    $8.99
    $8.99 - $8.99
    $8.99
  • Simplex 2081-9274 12V 22Ah Alarm Replacement Battery
    $63.79 - $63.79
    $63.79
    $63.79 - $63.79
    $63.79

    AJC Battery Compatible with Simplex 2081-9274 12V 22Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $63.79 - $63.79
    $63.79
    $63.79 - $63.79
    $63.79
  • Simplex 20819274 12V 12Ah Alarm Replacement Battery
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29

    AJC Battery Compatible with Simplex 20819274 12V 12Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29
  • Simplex 20013072 12V 12Ah Alarm Replacement Battery
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29

    AJC Battery Compatible with Simplex 20013072 12V 12Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29
  • Simplex 20013072 12V 10Ah Alarm Replacement Battery
    $39.29 - $50.69
    $39.29 - $50.69
    $39.29 - $50.69
    $39.29

    AJC Battery Compatible with Simplex 20013072 12V 10Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $39.29 - $50.69
    $39.29 - $50.69
    $39.29 - $50.69
    $39.29
  • Simplex 112-113 12V 12Ah Alarm Replacement Battery
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29

    AJC Battery Compatible with Simplex 112-113 12V 12Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29 - $50.69
    $45.29
  • Simplex 112-113 12V 100Ah Alarm Replacement Battery
    $227.99 - $227.99
    $227.99
    $227.99 - $227.99
    $227.99

    AJC Battery Compatible with Simplex 112-113 12V 100Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $227.99 - $227.99
    $227.99
    $227.99 - $227.99
    $227.99
  • Simplex 112-112 12V 100Ah Alarm Replacement Battery
    $227.99 - $227.99
    $227.99
    $227.99 - $227.99
    $227.99

    AJC Battery Compatible with Simplex 112-112 12V 100Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $227.99 - $227.99
    $227.99
    $227.99 - $227.99
    $227.99
  • Simplex 112-046 12V 22Ah Alarm Replacement Battery
    $63.79 - $63.79
    $63.79
    $63.79 - $63.79
    $63.79

    AJC Battery Compatible with Simplex 112-046 12V 22Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $63.79 - $63.79
    $63.79
    $63.79 - $63.79
    $63.79
  • Simplex 112-046 12V 18Ah Alarm Replacement Battery
    $57.99 - $63.79
    $57.99 - $63.79
    $57.99 - $63.79
    $57.99

    AJC Battery Compatible with Simplex 112-046 12V 18Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $57.99 - $63.79
    $57.99 - $63.79
    $57.99 - $63.79
    $57.99
  • Silent Knight N5HR 12V 5Ah Alarm Replacement Battery
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69

    AJC Battery Compatible with Silent Knight N5HR 12V 5Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69
  • Silent Knight ENERJET 12V 5Ah Alarm Replacement Battery
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69

    AJC Battery Compatible with Silent Knight ENERJET 12V 5Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69
  • Securitron MINIMAG LOCKS 12V 5Ah Alarm Replacement Battery
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69

    AJC Battery Compatible with Securitron MINIMAG LOCKS 12V 5Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $19.69 - $19.69
    $19.69
    $19.69 - $19.69
    $19.69
  • Securitron BPS129 12V 4.5Ah Alarm Replacement Battery
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59

    AJC Battery Compatible with Securitron BPS129 12V 4.5Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59
  • Securitron BPS1245 12V 4.5Ah Alarm Replacement Battery
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59

    AJC Battery Compatible with Securitron BPS1245 12V 4.5Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59
  • ADI 4110 12V 4.5Ah Alarm Replacement Battery
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59

    AJC Battery Compatible with ADI 4110 12V 4.5Ah Alarm Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59 - $19.69
    $18.59
  • Ademco 4180 6V 5Ah Alarm Replacement Battery
    $9.99 - $9.99
    $9.99
    $9.99 - $9.99
    $9.99

    AJC Battery Compatible with Ademco 4180 6V 5Ah Alarm Battery

    In stock

    Information 6V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed ...

    View full details
    $9.99 - $9.99
    $9.99
    $9.99 - $9.99
    $9.99