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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.

  • Napco GEM P800 12V 4.5Ah Alarm Replacement Battery
    $15.99 - $15.99
    $15.99
    $15.99 - $15.99
    $15.99

    AJC Battery Compatible with Napco GEM P800 12V 4.5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEM P800 Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AG...

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    $15.99 - $15.99
    $15.99
    $15.99 - $15.99
    $15.99
  • Napco Alarms 12V 7Ah Alarm Replacement Battery
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59

    AJC Battery Compatible with Napco Alarms 12V 7Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco Alarms Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

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    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59
  • Napco GEM-P3200 12V 7Ah Alarm Replacement Battery
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59

    AJC Battery Compatible with Napco GEM-P3200 12V 7Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEM-P3200 Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free A...

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    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59
  • Napco GEM-P816 (12v 7ah) 12V 7Ah Alarm Replacement Battery
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59

    AJC Battery Compatible with Napco GEM-P816 12v 7ah 12V 7Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEM-P816 12v 7ah Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenanc...

    View full details
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59
  • Napco GEM-P816 - 12v 4ah 12V 4.5Ah Alarm Replacement Battery
    $15.99 - $15.99
    $15.99
    $15.99 - $15.99
    $15.99

    AJC Battery Compatible with Napco GEM-P816 - 12v 4ah 12V 4.5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEM-P816 - 12v 4ah Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenan...

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    $15.99 - $15.99
    $15.99
    $15.99 - $15.99
    $15.99
  • Napco Magnum 1016e 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco Magnum 1016e 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco Magnum 1016e Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance fre...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEM-P816 - 12V 7Ah Alarm Replacement Battery
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59

    AJC Battery Compatible with Napco GEM-P816 - 12V 7Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEM-P816 - Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free ...

    View full details
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59
  • Napco Alarms RBAT4 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco Alarms RBAT4 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco Alarms RBAT4 Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance fre...

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    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEMP3200 Panel 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEMP3200 Panel 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEMP3200 Panel Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance f...

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    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEM-P816 (12v 5ah) 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEM-P816 12v 5ah 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEM-P816 12v 5ah Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenanc...

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    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco Alarms RBAT6 12V 8Ah Alarm Replacement Battery
    $21.19 - $21.19
    $21.19
    $21.19 - $21.19
    $21.19

    AJC Battery Compatible with Napco Alarms RBAT6 12V 8Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco Alarms RBAT6 Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance fre...

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    $21.19 - $21.19
    $21.19
    $21.19 - $21.19
    $21.19
  • Napco Magnum Alert Panel 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco Magnum Alert Panel 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco Magnum Alert Panel Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenan...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEM-P816 12v 7ah 12V 7Ah Alarm Replacement Battery
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59

    AJC Battery Compatible with Napco GEM-P816 12v 7ah 12V 7Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEM-P816 12v 7ah Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance...

    View full details
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59
  • Napco GEM-P816 12V 5AH 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEM-P816 12V 5AH 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEM-P816 12V 5AH Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEMA1016LKDL 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEMA1016LKDL 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEMA1016LKDL Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance fre...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEMA1016E 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEMA1016E 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEMA1016E Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free A...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEMA1008LKDL 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEMA1008LKDL 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEMA1008LKDL Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance fre...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEMA1008E 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEMA1008E 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEMA1008E Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free A...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEMA1000E4LB 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEMA1000E4LB 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEMA1000E4LB Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance fre...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEMA1000E4LB PAK 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEMA1000E4LB PAK 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEMA1000E4LB PAK Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance...

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    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco GEGEM-P816 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco GEGEM-P816 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco GEGEM-P816 Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free ...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco Alarms MA1016LKDL 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco Alarms MA1016LKDL 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco Alarms MA1016LKDL Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenanc...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco Alarms MA1016E 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco Alarms MA1016E 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco Alarms MA1016E Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance f...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Napco Alarms MA1008LKDL 12V 5Ah Alarm Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    AJC Battery Compatible with Napco Alarms MA1008LKDL 12V 5Ah Alarm Battery

    In stock

    Info AJC® replacement compatible with Napco Alarms MA1008LKDL Alarm Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenanc...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49