Amp-hour ratings indicate how much charge a 12V battery can store, with higher ratings generally supporting longer runtime under the same load. Actual runtime also depends on the equipment’s power draw, battery condition, temperature, and discharge rate, so choose a capacity that matches the application and available space.

12V batteries in this assortment are available with F1 and F2 Faston tab terminals, NB terminals, or B1-M5 bolt-and-nut terminals. To match a replacement, compare the existing battery’s connector style, terminal position and polarity, physical size, and amp-hour rating with the equipment requirements before installation.

Rechargeable sealed lead-acid 12V batteries provide backup power for security alarms, access control, fire alarm systems, emergency lighting, and uninterruptible power supplies. Their sealed design supports convenient maintenance, while multiple amp-hour capacities and terminal types help integrators match the battery to the system.

Choose a 12V battery by matching the system’s voltage, required load, desired backup time, physical space, and terminal type, then select an amp-hour capacity such as 7, 8, 12, 18, 26, or 55 Ah that fits those requirements. For an expanding system, review the updated load and runtime needs, confirm the battery compartment and connections can accommodate the selected battery, and follow the system manufacturer’s requirements.