# MK Battery ES3-6 · Electric wheelchair battery 6V 3Ah

![MK Battery ES3-6 · Electric wheelchair battery 6V 3Ah](https://bateriasonline.es/3470-home_default/mk-battery-es3-6.jpg)

> MK Battery ES3-6: 3 Ah electric wheelchair battery, 134.1×34×65 mm, AGM. VAT included and shipping cost shown before you pay.

**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-es3-6
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-ES3-6
- **MPN**: ES3-6
- **Price**: 31,12 € (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 | 3 Ah |
| Length | 134.1 mm |
| Width | 34 mm |
| Height | 65 mm |
| Weight | 0.7 kg |
| Terminal type | F1 |

## Quick description

The MK Battery ES3-6 is an electric wheelchair battery with 6 V and 3 Ah, measuring 134.1 × 34 × 65 mm.

## Description

## The MK Battery ES3-6 at a glance

The MK Battery ES3-6 is made for powered wheelchairs. With 3 Ah per battery, the ES3-6 is designed for a full charge every night.
The ES3-6 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 ES3-6 is AGM

Inside, the ES3-6 has glass fibre separators (AGM) that hold the electrolyte. The ES3-6 needs a charger with an AGM mode that does not exceed 14.7 V.

## MK Battery ES3-6 vs ES3-6H and ES4-6SA: which one to choose?

How the ES3-6 compares with MK Battery batteries of similar size and capacity:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery ES3-6 (this one) | 3 Ah | 134.1 × 34 × 65 | 0.7 kg |
| MK Battery ES3-6H | 2.8 Ah | 66 × 33 × 103.9 | 0.57 kg |
| MK Battery ES4-6SA | 4 Ah | 70.1 × 47 × 105.9 | 0.74 kg |

- MK Battery ES3-6H: 0.20 Ah less, a different case (66 × 33 × 103.9 mm).
- MK Battery ES4-6SA: 1 Ah more, a different case (70.1 × 47 × 105.9 mm).

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

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

## MK Battery ES3-6 codes and part numbers

This is how the MK Battery ES3-6 appears on the label and in parts catalogues:

| Commercial reference | ES3-6 |
|---|---|
| Terminal type | F1 |
| Not to be confused with | MK Battery ES13-6 (13 Ah), MK Battery ES3-6H (2.8 Ah), MK Battery ES3.8-6 (3.8 Ah) |

## Check this before ordering the MK Battery ES3-6

- Capacity of the ES3-6: 3 Ah; the same as your current battery or slightly more is fine.
- The ES3-6 needs 134.1 × 34 × 65 mm of space: measure it with the hold-down clamp in place.

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

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

Compared with the ES3-6, the MK Battery ES3-6H has 0.20 Ah less. With 3 Ah, the ES3-6 runs longer between charges than the ES3-6H (2.8 Ah). Mind the space: the ES3-6H measures 66 × 33 × 103.9 mm.

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

The ES3-6 weighs 0.7 kg. For reference, the MK Battery ES3-6H (2.8 Ah) weighs 0.57 kg.

### Which charger does the MK Battery ES3-6 need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

## More batteries to compare with the ES3-6

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

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