# MK Battery ES12-6 T2 · Electric wheelchair battery 6V 12Ah

![MK Battery ES12-6 T2 · Electric wheelchair battery 6V 12Ah](https://bateriasonline.es/2883-home_default/mk-battery-es12-6-t2.jpg)

> MK Battery ES12-6 T2: 12 Ah electric wheelchair battery, 150.9×50×99.1 mm, AGM. Equivalent to MK Battery ES12-6 and MK Battery ES12-6FR HR.

**Category:** [Electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries) → [MK Battery](https://bateriasonline.es/en/mk-batteries)

- **Canonical URL**: https://bateriasonline.es/en/mk-battery-es12-6-t2
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-ES12-6 T2
- **MPN**: ES12-6 T2
- **Price**: 37,93 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK AGM |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 6 V |
| Capacity | 12 Ah |
| Length | 150.9 mm |
| Width | 50 mm |
| Height | 99.1 mm |
| Weight | 1.84 kg |

## Quick description

MK Battery ES12-6 T2: electric wheelchair battery with 6 V and 12 Ah, measuring 150.9 × 50 × 99.1 mm.

## Description

## Who the MK Battery ES12-6 T2 is for

The MK Battery ES12-6 T2 is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. It is fitted as a 12 V pair and takes hundreds of daily cycles, something a starter battery could not handle.
The ES12-6 T2 belongs to the MK Battery MK AGM range. [See all MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## AGM technology in the ES12-6 T2

The ES12-6 T2 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.

## MK Battery ES12-6 T2 vs ES8.2-6S and ES13-6

What sets the ES12-6 T2 apart from its neighbours in the MK Battery range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery ES12-6 T2 (this one) | 12 Ah | 150.9 × 50 × 99.1 | 1.84 kg |
| MK Battery ES8.2-6S | 9 Ah | 98.6 × 55.9 × 118.1 | 1.7 kg |
| MK Battery ES13-6 | 13 Ah | 108 × 70.1 × 140 | 2.24 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).

## Equivalents and alternatives to the MK Battery ES12-6 T2

As the ES12-6 T2 is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| MK Battery ES12-6 | AGM | 12 Ah | 150.9 × 50 × 99.1 |
| MK Battery ES12-6FR HR | AGM | 12 Ah | 150.9 × 50 × 99.1 |

## What to look at before buying the ES12-6 T2

- Capacity of the ES12-6 T2: 12 Ah; the same as your current battery or slightly more is fine.
- The ES12-6 T2 needs 150.9 × 50 × 99.1 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the MK Battery ES12-6 T2

### MK Battery ES12-6 T2 or ES8.2-6S?

Compared with the ES12-6 T2, the MK Battery ES8.2-6S has 3 Ah less. With 12 Ah, the ES12-6 T2 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 ES12-6 T2 weigh?

The ES12-6 T2 weighs 1.84 kg. For reference, the MK Battery ES8.2-6S (9 Ah) weighs 1.7 kg.

### Which battery is equivalent to the MK Battery ES12-6 T2?

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

### Do I have to replace both batteries at once?

Yes. Wheelchairs fit two batteries in series, and a new one next to a worn one becomes unbalanced and lasts much less.

## Keep comparing: alternatives to the ES12-6 T2

- [More electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [More MK Battery models](https://bateriasonline.es/en/mk-batteries)
- [MK Battery ES12-6](https://bateriasonline.es/en/mk-battery-es12-6) · 12 Ah, 150.9×50×99.1 mm
- [MK Battery ES12-6FR HR](https://bateriasonline.es/en/mk-battery-es12-6fr-hr) · 12 Ah, 150.9×50×99.1 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-11*