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

Emergency Light Batteries

Ensure your building is equipped to handle any power outage with reliable emergency light batteries from BatteryClerk. We offer a wide selection of high-quality replacement batteries designed to keep your emergency lights shining bright when it matters most. Our batteries meet rigorous safety standards and are compatible with all major emergency lighting brands. With competitive prices, expert advice, and fast shipping, BatteryClerk makes it easy to keep your building safe and compliant.

  • Simplex 12V18AH 12V 18Ah Emergency Light Replacement Battery
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99

    AJC Battery Compatible with Simplex 12V18AH 12V 18Ah Emergency Light 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
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99
  • Simplex Model 4100 Fire Alarm Panel 12V 35Ah Emergency Light Replacement Battery
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19

    AJC Battery Compatible with Simplex Model 4100 Fire Alarm Panel 12V 35Ah Emergency Light 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
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19
  • Simplex UB12180 12V 18Ah Emergency Light Replacement Battery
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99

    AJC Battery Compatible with Simplex UB12180 12V 18Ah Emergency Light 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
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99
  • Simplex 12v5ah 12V 4.5Ah Emergency Light Replacement Battery
    $15.99 - $15.99
    $15.99
    $15.99 - $15.99
    $15.99

    AJC Battery Compatible with Simplex 12v5ah 12V 4.5Ah Emergency Light 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
    $15.99 - $15.99
    $15.99
    $15.99 - $15.99
    $15.99
  • Simplex 12V 18Ah Emergency Light Replacement Battery
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99

    AJC Battery Compatible with Simplex All 12V 18Ah Emergency Light 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
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99
  • Simplex 4100 12V 35Ah Emergency Light Replacement Battery
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19

    AJC Battery Compatible with Simplex 4100 12V 35Ah Emergency Light 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
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19
  • Simplex 112-046 12V 18Ah Emergency Light Replacement Battery
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99

    AJC Battery Compatible with Simplex 112-046 12V 18Ah Emergency Light 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
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99
  • Simplex 112-113 12V 12Ah Emergency Light Replacement Battery
    $37.79 - $37.79
    $37.79
    $37.79 - $37.79
    $37.79

    AJC Battery Compatible with Simplex 112-113 12V 12Ah Emergency Light 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
    $37.79 - $37.79
    $37.79
    $37.79 - $37.79
    $37.79
  • Simplex STR1121134 12V 12Ah Emergency Light Replacement Battery
    $37.79 - $37.79
    $37.79
    $37.79 - $37.79
    $37.79

    AJC Battery Compatible with Simplex STR1121134 12V 12Ah Emergency Light 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
    $37.79 - $37.79
    $37.79
    $37.79 - $37.79
    $37.79
  • Simplex 4002 12V 7Ah Emergency Light Replacement Battery
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59

    AJC Battery Compatible with Simplex 4002 12V 7Ah Emergency Light 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
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59
  • Simplex 20819288 12V 7Ah Emergency Light Replacement Battery
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59

    AJC Battery Compatible with Simplex 20819288 12V 7Ah Emergency Light 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
    $17.59 - $17.59
    $17.59
    $17.59 - $17.59
    $17.59
  • Simplex Model 4100 12V 35Ah Emergency Light Replacement Battery
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19

    AJC Battery Compatible with Simplex Model 4100 12V 35Ah Emergency Light 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
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19
  • Simplex Grinnel Model 4100 Fire Alarm Panel 12V 35Ah Emergency Light Replacement Battery
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19

    AJC Battery Compatible with Simplex Grinnel Model 4100 Fire Alarm Panel 12V 35Ah Emergency Light 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
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19
  • Simplex Grinnel Model 4100 12V 35Ah Emergency Light Replacement Battery
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19

    AJC Battery Compatible with Simplex Grinnel Model 4100 12V 35Ah Emergency Light 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
    $90.19 - $90.19
    $90.19
    $90.19 - $90.19
    $90.19
  • Simplex 12V18 12V 18Ah Emergency Light Replacement Battery
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99

    AJC Battery Compatible with Simplex 12V18 12V 18Ah Emergency Light 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
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99
  • Simplex 12V18AH RETROFIT 12V 18Ah Emergency Light Replacement Battery
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99

    AJC Battery Compatible with Simplex 12V18AH RETROFIT 12V 18Ah Emergency Light 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
    $46.99 - $46.99
    $46.99
    $46.99 - $46.99
    $46.99
  • Simplex 20013072 12VOLT 6V 12Ah Emergency Light Replacement Battery
    $17.99 - $17.99
    $17.99
    $17.99 - $17.99
    $17.99

    AJC Battery Compatible with Simplex 20013072 12VOLT 6V 12Ah Emergency Light 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
    $17.99 - $17.99
    $17.99
    $17.99 - $17.99
    $17.99
  • Simplex 20013072 6VOLT 6V 12Ah Emergency Light Replacement Battery
    $17.99 - $17.99
    $17.99
    $17.99 - $17.99
    $17.99

    AJC Battery Compatible with Simplex 20013072 6VOLT 6V 12Ah Emergency Light 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
    $17.99 - $17.99
    $17.99
    $17.99 - $17.99
    $17.99
  • Simplex UB12220 12V 22Ah Emergency Light Replacement Battery
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69

    AJC Battery Compatible with Simplex UB12220 12V 22Ah Emergency Light 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
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69
  • Simplex 92680 12V 22Ah Emergency Light Replacement Battery
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69

    AJC Battery Compatible with Simplex 92680 12V 22Ah Emergency Light 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
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69
  • Simplex Retrofit 12V 22Ah Emergency Light Replacement Battery
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69

    AJC Battery Compatible with Simplex Retrofit 12V 22Ah Emergency Light 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
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69
  • Simplex 12V 22Ah Emergency Light Replacement Battery
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69

    AJC Battery Compatible with Simplex All 12V 22Ah Emergency Light 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
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69
  • Simplex 12V 22Ah Emergency Light Replacement Battery
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69

    AJC Battery Compatible with Simplex All 12V 22Ah Emergency Light 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
    $56.69 - $56.69
    $56.69
    $56.69 - $56.69
    $56.69
  • Simplex STR112113 12V 12Ah Emergency Light Replacement Battery
    $37.79 - $37.79
    $37.79
    $37.79 - $37.79
    $37.79

    AJC Battery Compatible with Simplex STR112113 12V 12Ah Emergency Light 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
    $37.79 - $37.79
    $37.79
    $37.79 - $37.79
    $37.79