MK ES17-12, 12 V / 18 Ah Sealed Lead-Acid (VRLA, AGM) Battery

Key Specifications & Features:

• Nominal Voltage: 12 V.

• Capacity: ~18 Ah at the 20-hour rate (0.9 A to 10.50 V)

  • ~17.1 Ah at 10-hour rate.

  • ~15.3 Ah at 5-hour rate.

• Weight: approx 12.89 lbs (~5.86 kg).

• Dimensions: approx 181 × 76 × 167 mm (7.13″ × 2.99″ × 6.57″).

• Internal Resistance: approx 12 mΩ at 1 kHz.

• Maximum discharge current (5 seconds): up to ~270 A.

• Charging parameters (at ~25 °C):

  • Cycle use: 14.4 – 15.0 V.

  • Float/Standby use: 13.50 – 13.80 V.

• Sealed, maintenance-free VRLA battery—no watering required, mounting flexibility, safe for many uses.

Why Choose This Battery?

• Maintenance-free sealed design makes installation easy and maintenance minimal.

• Good capacity (~18 Ah) for 12 V systems needing reliable runtime.

• Strong build, trusted brand (MK Battery), suitable for deep-cycle/standby use.

• Broad application: backup power, mobility equipment, UPS, security systems etc.

Typical Applications (but not limited to):

• 12 V battery banks for solar/off-grid use

• Standby/UPS systems (telecom, server backup)

• Mobility equipment (chairs/scooters) where 12 V/18 Ah is appropriate

• Security alarm / access control systems

• Any equipment that recommends a sealed 12 V ≈18 Ah battery