MK ES26-12FT, 12 V / 26 Ah Sealed VRLA (AGM) Battery

Key Specifications & Features:

• Nominal Voltage: 12 V.

• Nominal Capacity: ~26 Ah at the 20-hour rate (1.3 A to 10.50 V) for the base ES26-12 model.

• Other discharge data: 10-h rate ~24.7 Ah; 5-h rate ~22.1 Ah.

• Weight: Approx 9.3 kg (≈20.5 lbs) for the 26 Ah variant.

• Internal resistance: ~11 mΩ (1 kHz) in spec sheet.

• Maximum discharge current for 5 seconds: ~390 A.

• 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 (5 °F) to +40 °C (104 °F)

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

• Case material: ABS (UL94 HB flame retardant) in standard version.

Why choose this battery?

• Maintenance-free sealed construction: no watering required, sealed VRLA design means minimal upkeep and safer indoor/varied-mounting orientation.

• Robust capacity (~26 Ah) at 12 V gives good runtime/back-up for many moderate loads.

• Strong surge capability: handles high short bursts (390 A) which is beneficial in demanding systems.

• Trusted brand: MK Battery is known for reliable sealed-lead-acid designs for mobility, backup and industrial use.

Applications (but not limited to):

• UPS / backup power systems (12 V setups)

• Mobility devices (power chairs, scooters) compatible with 12 V/26 Ah spec

• Security / alarm / access-control systems

• Small solar/off-grid 12 V battery banks (moderate use)

• Any system specified for a sealed 12 V battery with ~25–30 Ah capacity