# MK Battery ES26-12T · Electric wheelchair battery 12V 26Ah

![MK Battery ES26-12T · Electric wheelchair battery 12V 26Ah](https://bateriasonline.es/2935-home_default/mk-battery-es26-12t.jpg)

> MK Battery ES26-12T: 26 Ah electric wheelchair battery, 166.1×125.5×176 mm, AGM. Equivalent to Long WP26-12T and Long WP26-12TE.

**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-es26-12t
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-ES26-12T
- **MPN**: ES26-12T
- **Price**: 92,02 € (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 | 26 Ah |
| Length | 166.1 mm |
| Width | 125.5 mm |
| Height | 176 mm |
| Weight | 9.16 kg |

## Quick description

The MK Battery ES26-12T is an electric wheelchair battery with 12 V and 26 Ah, measuring 166.1 × 125.5 × 176 mm.

## Description

## Where the MK Battery ES26-12T fits

The MK Battery ES26-12T 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 ES26-12T belongs to the MK Battery MK AGM range. [See all MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## What it means that the ES26-12T is AGM

The ES26-12T is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the ES26-12T can be fitted in the boot or under a seat with no risk of spills.

## MK Battery ES26-12T vs MU-1 SLD M-33 and ES33-12: which one to choose?

How the ES26-12T compares with MK Battery batteries of similar size and capacity:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery ES26-12T (this one) | 26 Ah | 166.1 × 125.5 × 176 | 9.16 kg |
| MK Battery MU-1 SLD M-33 | 33 Ah | 196.1 × 130 × 180.1 | 10.48 kg |
| MK Battery ES33-12 | 35 Ah | 196.1 × 130 × 180.1 | 10.48 kg |

- MK Battery MU-1 SLD M-33: 7 Ah more, a different case (196.1 × 130 × 180.1 mm).
- MK Battery ES33-12: 9 Ah more, a different case (196.1 × 130 × 180.1 mm).

## Equivalents and alternatives to the MK Battery ES26-12T

As the ES26-12T 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) |
|---|---|---|---|
| Long WP26-12T | AGM | 26 Ah | 166 × 125.5 × 176 |
| Long WP26-12TE | AGM | 26 Ah | 166 × 125.5 × 176 |
| Long WP26-12TNE | AGM | 26 Ah | 166 × 125.5 × 176 |
| Fullriver DCG24-12 | AGM | 24 Ah | 166 × 126 × 175 |

## MK Battery ES26-12T codes and part numbers

Look for any of these ES26-12T codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | ES26-12T |
|---|---|
| Not to be confused with | MK Battery ES26-12 (26 Ah, positive terminal on the right) |

## Check this before ordering the MK Battery ES26-12T

- Capacity of the ES26-12T: 26 Ah; the same as your current battery or slightly more is fine.
- Measure the space: the ES26-12T takes up 166.1 × 125.5 × 176 mm.

## Frequently asked questions about the MK Battery ES26-12T

### MK Battery ES26-12T or MU-1 SLD M-33?

Compared with the ES26-12T, the MK Battery MU-1 SLD M-33 has 7 Ah more. With 33 Ah, the MU-1 SLD M-33 runs longer between charges than the ES26-12T (26 Ah). Mind the space: the MU-1 SLD M-33 measures 196.1 × 130 × 180.1 mm.

### How much does the MK Battery ES26-12T weigh?

The ES26-12T weighs 9.16 kg. For reference, the MK Battery MU-1 SLD M-33 (33 Ah) weighs 10.48 kg.

### Which battery is equivalent to the MK Battery ES26-12T?

Only other AGM batteries with its dimensions and polarity: Long WP26-12T, Long WP26-12TE and Long WP26-12TNE. Neither an EFB nor a conventional battery replaces the ES26-12T.

### Which charger does the MK Battery ES26-12T 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.

## Other options if you are unsure about the ES26-12T

- [All electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [More MK Battery models](https://bateriasonline.es/en/mk-batteries)
- [Long WP26-12T](https://bateriasonline.es/en/long-wp26-12t) · 26 Ah, 166×125.5×176 mm
- [Long WP26-12TE](https://bateriasonline.es/en/long-wp26-12te) · 26 Ah, 166×125.5×176 mm

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