MK Battery

MK Battery ES12-6FR HR · Electric wheelchair battery 6V 12Ah

Reference: BOL-MK-ES12-6FR HR

The MK Battery ES12-6FR HR is an electric wheelchair battery with 6 V and 12 Ah, measuring 150.9 × 50 × 99.1 mm.

The MK Battery ES12-6FR HR at a glance

The MK Battery ES12-6FR HR is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. The ES12-6FR HR is fitted in pairs: two 12 V batteries in series give the chair's 24 V.

The ES12-6FR HR belongs to the MK Battery MK AGM range. See all MK Battery batteries

Equivalents and alternatives to the MK Battery ES12-6FR HR

Other AGM batteries that fit the ES12-6FR HR's tray with the same polarity: an AGM can only be replaced by another AGM.

ModelTechnologyCapacityDimensions (mm)
MK Battery ES12-6AGM12 Ah150.9 × 50 × 99.1
MK Battery ES12-6 T2AGM12 Ah150.9 × 50 × 99.1

MK Battery ES12-6FR HR vs ES8.2-6S and ES13-6: differences

How the ES12-6FR HR compares with MK Battery batteries of similar size and capacity:

ModelCapacityDimensions (mm)Weight
MK Battery ES12-6FR HR (this one)12 Ah150.9 × 50 × 99.11.84 kg
MK Battery ES8.2-6S9 Ah98.6 × 55.9 × 118.11.7 kg
MK Battery ES13-613 Ah108 × 70.1 × 1402.24 kg
  • MK Battery ES8.2-6S: 3 Ah less, a different case (98.6 × 55.9 × 118.1 mm).
  • MK Battery ES13-6: 1 Ah more, a different case (108 × 70.1 × 140 mm).

Inside the ES12-6FR HR: AGM technology

The ES12-6FR HR is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. It withstands many more cycles than a conventional lead battery, at the cost of being more sensitive to overcharging.

Check this before ordering the MK Battery ES12-6FR HR

  • The ES12-6FR HR needs 150.9 × 50 × 99.1 mm of space: measure it with the hold-down clamp in place.
  • With 12 Ah, the ES12-6FR HR replaces an original battery of that capacity or slightly less.

Frequently asked questions about the MK Battery ES12-6FR HR

ES12-6FR HR or ES8.2-6S: which one suits me?

Compared with the ES12-6FR HR, the MK Battery ES8.2-6S has 3 Ah less. With 12 Ah, the ES12-6FR HR runs longer between charges than the ES8.2-6S (9 Ah). Mind the space: the ES8.2-6S measures 98.6 × 55.9 × 118.1 mm.

How much does the MK Battery ES12-6FR HR weigh?

1.84 kg, with 12 Ah of capacity. For reference, the MK Battery ES8.2-6S (9 Ah) weighs 1.7 kg.

Which battery is equivalent to the MK Battery ES12-6FR HR?

Only other AGM batteries with its dimensions and polarity: MK Battery ES12-6 and MK Battery ES12-6 T2. Neither an EFB nor a conventional battery replaces the ES12-6FR HR.

How much range does the MK Battery ES12-6FR HR give in an electric wheelchair?

It depends on weight, terrain and the chair. As a guide, with 12 Ah per battery an average chair covers several kilometres a day; range drops with hills and cold batteries.

Keep comparing: alternatives to the ES12-6FR HR

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