MK Battery 12V 18Ah Sealed Lead-Acid Battery ES17-12 — Maintenance-Free VRLA, NB Terminals

The MK Battery ES17-12 is a sealed, maintenance-free 12V lead-acid (VRLA) battery rated 18Ah, built for reliable standby and cycle performance across a wide range of equipment.

The MK Battery ES17-12 combines valve-regulated lead-acid technology with a sealed design so you get dependable power without routine maintenance or acid handling. Engineered for long life and consistent output, this 12V 18Ah unit fits many standby and portable power needs — from emergency lighting and alarm systems to mobility devices and small solar setups. It meets industry quality and safety standards, making it a practical option when dependable, service-free power is required.

How does the ES17-12 perform in standby applications?

Designed for standby and UPS systems, the ES17-12 provides steady voltage delivery over long periods and tolerates float charging when used for backup power. Its sealed VRLA design prevents leaks and reduces corrosion risk at terminals, supporting reliable operation in cabinets and enclosures.

• Rated 12 volts and 18 amp-hours (20-hour rate) for predictable runtime estimates
• Sealed construction: no water additions or acid spills
• Nut-and-bolt (NB) terminals ensure secure, low-resistance connections
• UL-tested and ISO-certified manufacturing for consistent quality

Can I use the ES17-12 for cycle-heavy applications like mobility or motorized equipment?

The ES17-12 is suitable for moderate deep-cycle use such as mobility aids, small motorized equipment, and recreational devices, though it's optimized for a mix of standby and cycle duty rather than extreme deep-cycle demands. Proper charging and avoiding full deep discharges will maximize service life.

• 18Ah capacity supports many mobility devices and small motors for typical daily usage
• VRLA construction tolerates regular charge/discharge cycles with less maintenance
• Use a compatible charger and follow recommended charge profiles to extend cycles

What size and connections should I expect when installing the ES17-12?

The ES17-12 uses NB (nut/bolt) terminals for strong mechanical connection and low-resistance current transfer. The compact sealed case fits common battery compartments and mounting racks used in alarms, lighting, and UPS modules.

• Nominal voltage: 12V; capacity: 18Ah at the 20-hour rate
• Terminals: NB (nut and bolt) style for secure wiring
• Sealed case allows flexible mounting orientations in enclosed spaces
• Check device dimensions and terminal polarity before installation

Are there any shipping or regulatory limitations I should know about?

Because the ES17-12 is a lead-acid battery, some shipping restrictions apply. Sales and shipment to certain jurisdictions may be limited; check vendor and local regulations before ordering.

• Battery is sealed and non-spillable, but hazardous-material rules can affect carriers
• Some sellers do not ship this model to specific states—confirm availability at checkout
• Recycling and proper disposal are recommended where battery recycling programs exist

Who is this for: The MK Battery ES17-12 suits buyers who need a maintenance-free, sealed 12V battery with reliable float and moderate cycle capability — installers of security systems, emergency lighting, small UPS setups, mobility equipment owners, and hobbyists building portable power packs. If you need an 18Ah sealed lead-acid battery with secure NB terminals and industry-certified quality, the ES17-12 is designed to meet those needs. Note: verify shipping availability for your state and follow local recycling rules when the battery reaches end of life.

• Product highlights: Genuine MK Battery ES17-12, 18AH (20-hour rate), 12 Volts, NB terminals
• Sealed VRLA technology — maintenance-free and leak-resistant
• Manufactured under ISO 9001 and ISO 14001 standards; UL-tested
• *** CAN NOT SHIP TO CALIFORNIA OR TEXAS ***