# MK Battery ES2.3-12V · Electric wheelchair battery 12V 2.1Ah

![MK Battery ES2.3-12V · Electric wheelchair battery 12V 2.1Ah](https://bateriasonline.es/2907-home_default/mk-battery-es2-3-12v.jpg)

> MK Battery ES2.3-12V: 2.1 Ah electric wheelchair battery, 182.1×23.1×61 mm, AGM. Compare sizes and equivalents; 14-day returns.

**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-es2-3-12v
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-ES2.3-12V
- **MPN**: ES2.3-12V
- **Price**: 62,33 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK AGM |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 2.1 Ah |
| Length | 182.1 mm |
| Width | 23.1 mm |
| Height | 61 mm |
| Weight | 0.65 kg |
| Terminal type | F13 |

## Quick description

The MK Battery ES2.3-12V is an electric wheelchair battery with 12 V and 2.1 Ah, measuring 182.1 × 23.1 × 61 mm.

## Description

## Who the MK Battery ES2.3-12V is for

The MK Battery ES2.3-12V is made for powered wheelchairs. The ES2.3-12V is fitted in pairs: two 12 V batteries in series give the chair's 24 V.
The ES2.3-12V belongs to the MK Battery MK AGM range. [The full range of MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## Inside the ES2.3-12V: AGM technology

Inside, the ES2.3-12V has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## MK Battery ES2.3-12V vs ES1.9-12 and ES2.4-12L: differences

How the ES2.3-12V compares with MK Battery batteries of similar size and capacity:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery ES2.3-12V (this one) | 2.1 Ah | 182.1 × 23.1 × 61 | 0.65 kg |
| MK Battery ES1.9-12 | 2.3 Ah | 178.1 × 34 × 66 | 1.04 kg |
| MK Battery ES2.4-12L | 2.4 Ah | 178.1 × 34.5 × 66 | 0.96 kg |

- MK Battery ES1.9-12: 0.20 Ah more, a different case (178.1 × 34 × 66 mm).
- MK Battery ES2.4-12L: 0.30 Ah more, a different case (178.1 × 34.5 × 66 mm).

## Equivalents and alternatives to the MK Battery ES2.3-12V

No other reference in the catalogue fully matches the dimensions and polarity of the ES2.3-12V; you will find the closest ones among our [electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries).

## MK Battery ES2.3-12V codes and part numbers

Shops, garages and catalogues identify the ES2.3-12V with these codes:

| Commercial reference | ES2.3-12V |
|---|---|
| Terminal type | F13 |
| Not to be confused with | MK Battery ES2-12V (2 Ah) |

## What to look at before buying the ES2.3-12V

- Your current battery should say about 2.1 Ah; a little more is also fine.
- Measure the space: the ES2.3-12V takes up 182.1 × 23.1 × 61 mm.

## Frequently asked questions about the MK Battery ES2.3-12V

### MK Battery ES2.3-12V or ES1.9-12?

Compared with the ES2.3-12V, the MK Battery ES1.9-12 has 0.20 Ah more. With 2.3 Ah, the ES1.9-12 runs longer between charges than the ES2.3-12V (2.1 Ah). Mind the space: the ES1.9-12 measures 178.1 × 34 × 66 mm.

### How much does the MK Battery ES2.3-12V weigh?

The ES2.3-12V weighs 0.65 kg. For reference, the MK Battery ES1.9-12 (2.3 Ah) weighs 1.04 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 ES2.3-12V

- [All electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [The whole MK Battery range](https://bateriasonline.es/en/mk-batteries)
- [MK Battery ES2-12SLM](https://bateriasonline.es/en/mk-battery-es2-12slm) · 2 Ah, 150.1×20.1×89.9 mm

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