• CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery
  • CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery
  • CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery
  • CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery
  • CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery
  • CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery
  • CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery
  • CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery

    • CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery

    Casil

    Was: $25.29
    Now: $21.99
    Adding to cart… category.add_cart_announcement
    (20 reviews) Write a Review
    SKU:
    P9-V1H2-RB5H-1X
    Condition:
    New
    Availability:
    Usually ships in 24 hours M-F
    Weight:
    3.00 LBS
    Width:
    3.54 (in)
    Height:
    4.02 (in)
    Depth:
    2.76 (in)
    Shipping:
    Free Shipping
    PRODUCT SPECS:
    Casil CA1240, 12V 4Ah, rechargeable sealed lead acid (SLA/AGM) battery.
    APPLICATIONS:
    Ideal for alarm panels, security systems, backup power.
    COMPATIBILITY:
    Common replacement references include EXP1240, UB1240, ML4-12, PS-1240, PK1240, ExpertPower. Verify voltage, dimensions and terminal type before ordering.
    AGM SLA PERFORMANCE:
    Maintenance-free, spill-proof rechargeable design resists vibration and supports dependable standby and cyclic power.
    FIT DETAILS:
    F1 terminals. Match specifications to your original battery before purchase.

    Product Description

    CASIL CA-1240 12V 4AH Rechargeable Sealed Lead Acid Alarm Battery is a 12V 4Ah rechargeable sealed lead acid (SLA/AGM) battery built for dependable, maintenance-free replacement power. Its sealed AGM/VRLA design is suited for standby and cyclic applications.

    Applications: home security systems, alarm panels, access control, backup power.

    Fit Details: F1 terminal. Always compare your original battery specifications before purchase.

    Popular Search Terms: 12V 4Ah battery, 12 volt 4 amp hour battery, rechargeable SLA battery, sealed lead acid battery, AGM battery, battery replacement, alarm battery, security system battery, F1 terminal.

    Other Details

    1 year Pro Rated Warranty

    Product Videos

    Custom Field

    PRODUCT SPECS Casil CA1240, 12V 4Ah, rechargeable sealed lead acid (SLA/AGM) battery.
    APPLICATIONS Ideal for alarm panels, security systems, backup power.
    COMPATIBILITY Common replacement references include EXP1240, UB1240, ML4-12, PS-1240, PK1240, ExpertPower. Verify voltage, dimensions and terminal type before ordering.
    AGM SLA PERFORMANCE Maintenance-free, spill-proof rechargeable design resists vibration and supports dependable standby and cyclic power.
    FIT DETAILS F1 terminals. Match specifications to your original battery before purchase.

    Product Reviews

    Write a Review

    20 Reviews Hide Reviews Show Reviews

    • 5
      Battery

      Posted by Art Szulborski on Jan 26th 2026

      Pick delivery battery is working fine

    • 5
      Home security battery

      Posted by Robert A. Rorke on Aug 5th 2021

      Fast service and easy peasy to replace. Savings substantial as well.

    • 5
      Predator caller battery

      Posted by Jethro on Feb 1st 2021

      Exact replacement works great

    • 5
      Super quick delivery-Great service!

      Posted by DOMINIC V COPPOLA on Nov 19th 2020

      But it!

    • 5
      CASIL CA-1240

      Posted by ds on Nov 12th 2020

      Works well, came with protective plastic terminal protectors to keep it from discharging and not get damaged.

    • 4
      Exact replacement battery

      Posted by Mai Phan on Oct 22nd 2020

      Easy to install. Powered up my dead security system right away. Very fast shipping. Too soon to comment on battery longevity. Thanks for the great price on a Casil battery.

    • 5
      CA-1240 12V 4AH

      Posted by Kenneth Weatherbee on Sep 16th 2020

      Very Pleased

    • 4
      Perfect replacement

      Posted by Curt Bates on Sep 15th 2020

      Plug and play

    • 5
      Casil CA-1240 Battery

      Posted by S. McCoy on Sep 13th 2020

      Outstanding battery and longevity. Just replaced 16 year old original Casil CA-1240 battery in my home security system. Definitely a quality product. Best regards