MK ES3-12, 12 V / 3 Ah Sealed Lead (AGM) Battery

Key Specifications & Features:

• Nominal Voltage: 12 V.

• Nominal Capacity: ~3 Ah at 20-hour rate (0.15 A to 10.50 V).

  • ~2.85 Ah at 10-hour rate.

  • ~2.55 Ah at 5-hour rate.

• Weight: approx 2.86 lbs (~1.30 kg).

• Terminal: F1 (Faston Tab 187) style.

• Case: Maintenance-free sealed lead-acid (VRLA) battery — no watering required, spill-proof design.

• Charging parameters (at ~25 °C):

  • Cycle use: 14.4-15.0 V.

  • Float/standby use: 13.5-13.8 V.

• Operating temperature range:

  • Charge: –15 °C to 40 °C (5 °F to 104 °F).

  • Discharge: –15 °C to 50 °C (5 °F to 122 °F).

Why choose this battery?

• Compact and lightweight offering (~1.3 kg) makes it ideal for smaller 12 V systems where space or weight is a constraint.

• Maintenance-free sealed design means minimal upkeep and safe for indoor or mounted applications.

• Reliable brand: MK Battery has strong reputation in sealed lead-acid battery market.

• Good choice for applications that need a steady 12 V supply with moderate capacity and no exposure to frequent heavy loads.

Applications (but not limited to):

• Security alarm systems / access-control panels

• Emergency lighting / exit signage systems

• Backup power modules for small instrumentation or electronics

• Portable instrumentation that uses a ~3 Ah 12 V battery

• Any 12 V system where maintenance-free sealed battery and moderate capacity suffice