# MK Battery 8A24 HEI · Electric wheelchair battery 12V 79Ah

![MK Battery 8A24 HEI · Electric wheelchair battery 12V 79Ah](https://bateriasonline.es/2784-home_default/mk-battery-8a24-hei.jpg)

> MK Battery 8A24 HEI: 79 Ah electric wheelchair battery, 276.9×166.6×210.1 mm, AGM. Equivalent to MK Battery M24 SLD A FT. 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-8a24-hei
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-8A24 HEI
- **MPN**: 8A24 HEI
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK AGM |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 79 Ah |
| Length | 276.9 mm |
| Width | 166.6 mm |
| Height | 210.1 mm |
| Weight | 24.04 kg |

## Quick description

The MK Battery 8A24 HEI is an electric wheelchair battery with 12 V and 79 Ah, measuring 276.9 × 166.6 × 210.1 mm.

## Description

## Who the MK Battery 8A24 HEI is for

The MK Battery 8A24 HEI is made for powered wheelchairs. With 79 Ah per battery, the 8A24 HEI is designed for a full charge every night.
The 8A24 HEI belongs to the MK Battery MK AGM range. [More MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## Equivalents and alternatives to the MK Battery 8A24 HEI

Other AGM batteries that fit the 8A24 HEI's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| MK Battery M24 SLD A FT | AGM | 79 Ah | 276.9 × 166.6 × 210.1 |

## MK Battery 8A24 HEI vs M75-12 SLD M and 8A27

Torn between the 8A24 HEI and another similar MK Battery? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery 8A24 HEI (this one) | 79 Ah | 276.9 × 166.6 × 210.1 | 24.04 kg |
| MK Battery M75-12 SLD M | 75 Ah | 260 × 170 × 205 | 24.2 kg |
| MK Battery 8A27 | 92 Ah | 325.9 × 166.6 × 240 | 27.9 kg |

- MK Battery M75-12 SLD M: 4 Ah less, a different case (260 × 170 × 205 mm).
- MK Battery 8A27: 13 Ah more, a different case (325.9 × 166.6 × 240 mm).

## Inside the 8A24 HEI: AGM technology

Inside, the 8A24 HEI has glass fibre separators (AGM) that hold the electrolyte. The 8A24 HEI needs a charger with an AGM mode that does not exceed 14.7 V.

## Check this before ordering the MK Battery 8A24 HEI

- The 8A24 HEI needs 276.9 × 166.6 × 210.1 mm of space: measure it with the hold-down clamp in place.
- With 79 Ah, the 8A24 HEI replaces an original battery of that capacity or slightly less.

## Frequently asked questions about the MK Battery 8A24 HEI

### 8A24 HEI or M75-12 SLD M: which one suits me?

Compared with the 8A24 HEI, the MK Battery M75-12 SLD M has 4 Ah less. With 79 Ah, the 8A24 HEI runs longer between charges than the M75-12 SLD M (75 Ah). Mind the space: the M75-12 SLD M measures 260 × 170 × 205 mm.

### How much does the MK Battery 8A24 HEI weigh?

24.04 kg, with 79 Ah of capacity. For reference, the MK Battery M75-12 SLD M (75 Ah) weighs 24.2 kg.

### Which battery is equivalent to the MK Battery 8A24 HEI?

Only other AGM batteries with its dimensions and polarity: MK Battery M24 SLD A FT. Neither an EFB nor a conventional battery replaces the 8A24 HEI.

### How much range does the MK Battery 8A24 HEI give in an electric wheelchair?

It depends on weight, terrain and the chair. As a guide, with 79 Ah per battery an average chair covers several kilometres a day; range drops with hills and cold batteries.

## Other options if you are unsure about the 8A24 HEI

- [All electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [Full MK Battery catalogue](https://bateriasonline.es/en/mk-batteries)
- [MK Battery M24 SLD A FT](https://bateriasonline.es/en/mk-battery-m24-sld-a-ft) · 79 Ah, 276.9×166.6×210.1 mm

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