# MK Battery ES9-12TE · Electric wheelchair battery 12V 9Ah

![MK Battery ES9-12TE · Electric wheelchair battery 12V 9Ah](https://bateriasonline.es/3544-home_default/mk-battery-es9-12te.jpg)

> MK Battery ES9-12TE: 9 Ah electric wheelchair battery, 150.9×65×105.9 mm, AGM. Equivalent to Kronobat ES9-12 and Kronobat ES7-12. Ask for a no-obligation 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-es9-12te
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-ES9-12TE
- **MPN**: ES9-12TE
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK AGM |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 9 Ah |
| Length | 150.9 mm |
| Width | 65 mm |
| Height | 105.9 mm |
| Weight | 2.69 kg |

## Quick description

MK Battery ES9-12TE: electric wheelchair battery with 12 V and 9 Ah, measuring 150.9 × 65 × 105.9 mm.

## Description

## The MK Battery ES9-12TE at a glance

The MK Battery ES9-12TE is made for powered wheelchairs. The ES9-12TE is fitted in pairs: two 12 V batteries in series give the chair's 24 V.
The ES9-12TE belongs to the MK Battery MK AGM range. [More MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## Inside the ES9-12TE: AGM technology

Inside, the ES9-12TE 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 ES9-12TE vs ES7-12, ES10-12S and ES7-12FR: differences

The real differences between the ES9-12TE and the closest MK Battery models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery ES9-12TE (this one) | 9 Ah | 150.9 × 65 × 105.9 | 2.69 kg |
| MK Battery ES7-12 | 7.2 Ah | 150.9 × 65 × 102.1 | 2.39 kg |
| MK Battery ES10-12S | 10 Ah | 150.9 × 65 × 118.6 | 3.28 kg |
| MK Battery ES7-12FR | 7.2 Ah | 150.9 × 65 × 102.1 | 2.39 kg |

- MK Battery ES7-12: 1.8 Ah less, a different case (150.9 × 65 × 102.1 mm).
- MK Battery ES10-12S: 1 Ah more, a different height (118.6 mm instead of 105.9 mm). It only fits if there is room for 118.6 mm of height.
- MK Battery ES7-12FR: 1.8 Ah less, a different case (150.9 × 65 × 102.1 mm).

## Equivalents and alternatives to the MK Battery ES9-12TE

Other AGM batteries that fit the ES9-12TE's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Kronobat ES9-12 | AGM | 9 Ah | 151 × 65 × 102 |
| Kronobat ES7-12 | AGM | 7 Ah | 151 × 65 × 102 |
| MK Battery ES9-12 | AGM | 9 Ah | 150.9 × 65 × 102.1 |
| MK Battery ES9-12FR | AGM | 9 Ah | 150.9 × 65 × 102.1 |
| MK Battery ES7-12 | AGM | 7.2 Ah | 150.9 × 65 × 102.1 |
| MK Battery ES7-12FR | AGM | 7.2 Ah | 150.9 × 65 × 102.1 |

## What to look at before buying the ES9-12TE

- With 9 Ah, the ES9-12TE replaces an original battery of that capacity or slightly less.
- Measure the space: the ES9-12TE takes up 150.9 × 65 × 105.9 mm.

## Frequently asked questions about the MK Battery ES9-12TE

### ES9-12TE or ES7-12: which one suits me?

Compared with the ES9-12TE, the MK Battery ES7-12 has 1.8 Ah less. With 9 Ah, the ES9-12TE runs longer between charges than the ES7-12 (7.2 Ah). Mind the space: the ES7-12 measures 150.9 × 65 × 102.1 mm.

### MK Battery ES9-12TE or ES10-12S: what changes?

Mainly the height: the ES9-12TE is 105.9 mm tall and the MK Battery ES10-12S 118.6 mm, with the same length and width and 10 Ah against 9 Ah. Before choosing between the ES9-12TE and the ES10-12S, measure the free height of the battery compartment with the cover or bonnet closed.

### How much does the MK Battery ES9-12TE weigh?

2.69 kg, with 9 Ah of capacity. For reference, the MK Battery ES7-12 (7.2 Ah) weighs 2.39 kg.

### Which battery is equivalent to the MK Battery ES9-12TE?

Only other AGM batteries with its dimensions and polarity: Kronobat ES9-12, Kronobat ES7-12 and MK Battery ES9-12. Neither an EFB nor a conventional battery replaces the ES9-12TE.

### 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 ES9-12TE

- [More electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [Full MK Battery catalogue](https://bateriasonline.es/en/mk-batteries)
- [Kronobat ES9-12](https://bateriasonline.es/en/kronobat-es9-12) · 9 Ah, 151×65×102 mm
- [Kronobat ES7-12](https://bateriasonline.es/en/kronobat-es7-12) · 7 Ah, 151×65×102 mm

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