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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.

  • Portalac lac PE12V4.5 12V 5Ah Emergency Light Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Portalac lac PE12V4.5 12V 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Portalac GS PEA12V4.5F1 12V 5Ah Emergency Light Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Portalac GS PEA12V4.5F1 12V 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Portalac GS PE4512R 12V 5Ah Emergency Light Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Portalac GS PE4512R 12V 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Portalac PEA12V4.5F1 12V 5Ah Emergency Light Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Portalac PEA12V4.5F1 12V 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Portalac PE412RF1 12V 5Ah Emergency Light Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Portalac PE412RF1 12V 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Portalac PE12V5F1 12V 5Ah Emergency Light Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Portalac PE12V5F1 12V 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Portalac PE12V4.5F1 12V 5Ah Emergency Light Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Portalac PE12V4.5F1 12V 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Portalac lac TPH12050A 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac lac TPH12050A 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac lac PX12050SHR 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac lac PX12050SHR 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac lac PEA12V4.5F1 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac lac PEA12V4.5F1 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac lac PE4512RF1 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac lac PE4512RF1 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac lac PE412R 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac lac PE412R 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac lac PE12V4.5F1 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac lac PE12V4.5F1 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac GS TPH12050A 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac GS TPH12050A 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac GS PE12V4.5 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac GS PE12V4.5 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac GS PX12050SHR 12V 4.5Ah Emergency Light Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Portalac GS PX12050SHR 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Portalac GS PE12V2 12V 26Ah Emergency Light Replacement Battery
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99

    AJC Battery Compatible with Portalac GS PE12V2 12V 26Ah 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
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99
  • Portalac PX12420 12V 26Ah Emergency Light Replacement Battery
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99

    AJC Battery Compatible with Portalac PX12420 12V 26Ah 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
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99
  • Portalac PX12250 12V 26Ah Emergency Light Replacement Battery
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99

    AJC Battery Compatible with Portalac PX12250 12V 26Ah 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
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99
  • Portalac PX12240 12V 26Ah Emergency Light Replacement Battery
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99

    AJC Battery Compatible with Portalac PX12240 12V 26Ah 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
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99
  • Portalac PWL12V28 12V 26Ah Emergency Light Replacement Battery
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99

    AJC Battery Compatible with Portalac PWL12V28 12V 26Ah 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
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99
  • Portalac PE24A12R 12V 26Ah Emergency Light Replacement Battery
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99

    AJC Battery Compatible with Portalac PE24A12R 12V 26Ah 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
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99
  • Portalac PE2412 12V 26Ah Emergency Light Replacement Battery
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99

    AJC Battery Compatible with Portalac PE2412 12V 26Ah 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
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99
  • Portalac PE2012 Bolt 12V 26Ah Emergency Light Replacement Battery
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99

    AJC Battery Compatible with Portalac PE2012 Bolt 12V 26Ah 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
    $76.99 - $76.99
    $76.99
    $76.99 - $76.99
    $76.99