Mighty Max Battery 12V 18AH Deep‑Cycle SLA/AGM Replacement Battery ML18‑12 — Sealed, Maintenance‑Free, High Discharge

The Mighty Max ML18-12 is a 12V, 18AH sealed lead‑acid (SLA/AGM) rechargeable deep‑cycle battery designed as a maintenance‑free replacement for CB19‑12 applications.

This compact, UL‑certified battery delivers dependable power for standby and cyclic use where a robust, spill‑proof battery is needed. It combines absorbed glass mat (AGM) technology with a sealed construction to provide high discharge capability, resistance to vibration, and broad temperature tolerance. The ML18-12 is intended as a direct replacement cell for many 12V 18AH applications and comes with a one‑year warranty.

How does the ML18-12 perform in everyday use?

The ML18-12 is built for regular cycling and reserve power. Its AGM design supports consistent discharge and efficient recharge cycles while remaining sealed and maintenance‑free, so you won’t need to add water or monitor electrolyte levels.

• Rated 12 volts and 18 ampere‑hours for predictable runtimes
• High discharge capability for devices requiring bursts of current
• Sealed, spill‑proof AGM construction for safe indoor or enclosed use
• UL certification for recognized safety and quality standards

Will it fit my equipment and how do I connect it?

The ML18-12 has a compact footprint and standard nut‑and‑bolt terminals to make installation simple in many systems. Verify the 7.12 x 3.00 x 6.50 inch dimensions and terminal style against your device or compartment before installation.

• Physical dimensions: 7.12" × 3.00" × 6.50" for space planning
• Nut and bolt terminals for secure, low‑resistance connections
• Sold as battery plus mounting screws; no harness or bracket included
• Can be installed in any orientation to suit tight spaces

How does it handle temperature, shock, and long service life?

The ML18-12 is engineered to withstand a wide range of operating temperatures and mechanical stresses. Its sealed AGM construction cushions internal components against vibration and shock while maintaining stable performance in both hot and cold environments.

• Wide temperature tolerance for reliable use in varied climates
• Shock and vibration resistance suitable for mobile or rugged applications
• Deep‑cycle capability for repeated discharge and recovery
• Designed for long service life when used and charged properly

What’s included and what should I plan for?

The package includes the ML18-12 battery and the mounting screws needed to secure the terminals. It does not include wiring harnesses, brackets, or other mounting accessories, so plan to use or purchase compatible connectors and hardware for your installation.

• Included: battery and screws only
• Not included: wire harness, mounting bracket, or additional connectors
• One‑year limited warranty from Mighty Max Battery
• Recommended: compatible charger for 12V SLA/AGM chemistries

Who is this for? The Mighty Max ML18-12 is suited to hobbyists, service technicians, and equipment owners who need a compact, versatile 12V 18AH replacement battery for UPS systems, alarm panels, portable power packs, mobility aids, and other standby or cyclic applications. If you require a sealed, maintenance‑free battery with reliable discharge performance and a standard terminal layout, this model offers an affordable, UL‑certified option. Confirm dimensions and terminal type against your device before ordering to ensure compatibility.