# MK Battery 8A4D · Electric wheelchair battery 12V 198Ah

![MK Battery 8A4D · Electric wheelchair battery 12V 198Ah](https://bateriasonline.es/2796-home_default/mk-battery-8a4d.jpg)

> MK Battery 8A4D: 198 Ah electric wheelchair battery, 537.2×213.6×249.7 mm, AGM. 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-8a4d
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-8A4D
- **MPN**: 8A4D
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK AGM |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 198 Ah |
| Length | 537.2 mm |
| Width | 213.6 mm |
| Height | 249.7 mm |
| Weight | 60.55 kg |

## Quick description

The MK Battery 8A4D is an electric wheelchair battery with 12 V and 198 Ah, measuring 537.2 × 213.6 × 249.7 mm.

## Description

## Who the MK Battery 8A4D is for

The MK Battery 8A4D is made for powered wheelchairs. With 198 Ah per battery, the 8A4D is designed for a full charge every night.
The 8A4D belongs to the MK Battery MK AGM range. [See all MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## Equivalents and alternatives to the MK Battery 8A4D

No other reference in the catalogue fully matches the dimensions and polarity of the 8A4D; you will find the closest ones among our [electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries).

## MK Battery 8A4D vs 8A8D: which one to choose?

Torn between the 8A4D and another similar MK Battery? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery 8A4D (this one) | 198 Ah | 537.2 × 213.6 × 249.7 | 60.55 kg |
| MK Battery 8A8D | 245 Ah | 530.1 × 278.6 × 244.3 | 73.94 kg |

- MK Battery 8A8D: 47 Ah more, a different case (530.1 × 278.6 × 244.3 mm).

## Inside the 8A4D: AGM technology

Inside, the 8A4D has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Check this before ordering the MK Battery 8A4D

- The 8A4D needs 537.2 × 213.6 × 249.7 mm of space: measure it with the hold-down clamp in place.
- With 198 Ah, the 8A4D replaces an original battery of that capacity or slightly less.

## MK Battery 8A4D codes and part numbers

Shops, garages and catalogues identify the 8A4D with these codes:

| Commercial reference | 8A4D |
|---|---|
| Not to be confused with | MK Battery 8A8D (245 Ah), MK Battery 8G4D (183 Ah) |

## Frequently asked questions about the MK Battery 8A4D

### MK Battery 8A4D or 8A8D?

Compared with the 8A4D, the MK Battery 8A8D has 47 Ah more. With 245 Ah, the 8A8D runs longer between charges than the 8A4D (198 Ah). Mind the space: the 8A8D measures 530.1 × 278.6 × 244.3 mm.

### How much does the MK Battery 8A4D weigh?

The 8A4D weighs 60.55 kg. For reference, the MK Battery 8A8D (245 Ah) weighs 73.94 kg.

### How much range does the MK Battery 8A4D give in an electric wheelchair?

It depends on weight, terrain and the chair. As a guide, with 198 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 8A4D

- [All electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [Full MK Battery catalogue](https://bateriasonline.es/en/mk-batteries)
- [MK Battery 8AGC2](https://bateriasonline.es/en/mk-battery-8agc2) · 190 Ah, 260.4×180.1×276.4 mm

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