# MK Battery ES3-6H · Electric wheelchair battery 6V 2.8Ah

![MK Battery ES3-6H · Electric wheelchair battery 6V 2.8Ah](https://bateriasonline.es/3472-home_default/mk-battery-es3-6h.jpg)

> MK Battery ES3-6H: 2.8 Ah electric wheelchair battery, 66×33×103.9 mm, AGM. Price on request: ask for a free quote.

**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-es3-6h
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-ES3-6H
- **MPN**: ES3-6H
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK AGM |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 6 V |
| Capacity | 2.8 Ah |
| Length | 66 mm |
| Width | 33 mm |
| Height | 103.9 mm |
| Weight | 0.57 kg |

## Quick description

MK Battery ES3-6H: electric wheelchair battery with 6 V and 2.8 Ah, measuring 66 × 33 × 103.9 mm.

## Description

## Who the MK Battery ES3-6H is for

The MK Battery ES3-6H is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. With 2.8 Ah per battery, the ES3-6H is designed for a full charge every night.
The ES3-6H belongs to the MK Battery MK AGM range. [The full range of MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## What it means that the ES3-6H is AGM

The ES3-6H 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 ES3-6H vs ES3-6 and ES3.8-6: differences

The real differences between the ES3-6H and the closest MK Battery models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery ES3-6H (this one) | 2.8 Ah | 66 × 33 × 103.9 | 0.57 kg |
| MK Battery ES3-6 | 3 Ah | 134.1 × 34 × 65 | 0.7 kg |
| MK Battery ES3.8-6 | 3.8 Ah | 66 × 33 × 126 | 0.74 kg |

- MK Battery ES3-6: 0.20 Ah more, a different case (134.1 × 34 × 65 mm).
- MK Battery ES3.8-6: 1 Ah more, a different height (126 mm instead of 103.9 mm). It only fits if there is room for 126 mm of height.

## Equivalents and alternatives to the MK Battery ES3-6H

No other reference in the catalogue fully matches the dimensions and polarity of the ES3-6H; you will find the closest ones among our [electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries).

## MK Battery ES3-6H codes and part numbers

The ES3-6H is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | ES3-6H |
|---|---|
| Not to be confused with | MK Battery ES3-6 (3 Ah) |

## What to look at before buying the ES3-6H

- With 2.8 Ah, the ES3-6H replaces an original battery of that capacity or slightly less.
- Length, width and height of the ES3-6H: 66 × 33 × 103.9 mm.

## Frequently asked questions about the MK Battery ES3-6H

### MK Battery ES3-6H or ES3-6?

Compared with the ES3-6H, the MK Battery ES3-6 has 0.20 Ah more. With 3 Ah, the ES3-6 runs longer between charges than the ES3-6H (2.8 Ah). Mind the space: the ES3-6 measures 134.1 × 34 × 65 mm.

### MK Battery ES3-6H or ES3.8-6: what changes?

Mainly the height: the ES3-6H is 103.9 mm tall and the MK Battery ES3.8-6 126 mm, with the same length and width and 3.8 Ah against 2.8 Ah. Before choosing between the ES3-6H and the ES3.8-6, measure the free height of the battery compartment with the cover or bonnet closed.

### How much does the MK Battery ES3-6H weigh?

The ES3-6H weighs 0.57 kg. For reference, the MK Battery ES3-6 (3 Ah) weighs 0.7 kg.

### 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.

## More batteries to compare with the ES3-6H

- [More electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [Full MK Battery catalogue](https://bateriasonline.es/en/mk-batteries)

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*bateriasonline.es — Batteries and accessories · 2026-11-10*