# MK Battery M27 SLD G · Electric wheelchair battery 12V 88Ah

![MK Battery M27 SLD G · Electric wheelchair battery 12V 88Ah](https://bateriasonline.es/3584-home_default/mk-battery-m27-sld-g.jpg)

> MK Battery M27 SLD G: 88 Ah electric wheelchair battery, 325.9×166.6×237 mm, GEL. Equivalent to MK Battery E27 SLD G. Price on request: ask for a free 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-m27-sld-g
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-M27 SLD G
- **MPN**: M27 SLD G
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK GEL |
| Application | Electric wheelchairs |
| Technology | GEL |
| Voltage | 12 V |
| Capacity | 88 Ah |
| Length | 325.9 mm |
| Width | 166.6 mm |
| Height | 237 mm |
| Weight | 28.12 kg |

## Quick description

The MK Battery M27 SLD G is an electric wheelchair battery with 12 V and 88 Ah, measuring 325.9 × 166.6 × 237 mm.

## Description

## Where the MK Battery M27 SLD G fits

The MK Battery M27 SLD G is made for powered wheelchairs. It is fitted as a 12 V pair and takes hundreds of daily cycles, something a starter battery could not handle.
The M27 SLD G belongs to the MK Battery MK GEL range. [More MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## What it means that the M27 SLD G is GEL

Inside, the M27 SLD G holds its electrolyte in gel form. It is the classic technology for wheelchairs, scooters, motorhomes and solar.

## MK Battery M27 SLD G vs 8G31 and E31 SLD G ST: which one to choose?

How the M27 SLD G compares with MK Battery batteries of similar size and capacity:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery M27 SLD G (this one) | 88 Ah | 325.9 × 166.6 × 237 | 28.12 kg |
| MK Battery 8G31 | 97.6 Ah | 328.4 × 171.2 × 237 | 31.07 kg |
| MK Battery E31 SLD G ST | 97.6 Ah | 328.4 × 171.2 × 237 | 31.07 kg |

- MK Battery 8G31: 9.60 Ah more, a different case (328.4 × 171.2 × 237 mm).
- MK Battery E31 SLD G ST: 9.60 Ah more, a different case (328.4 × 171.2 × 237 mm).

## Equivalents and alternatives to the MK Battery M27 SLD G

Gel alternatives to the M27 SLD G, with the same size and polarity: a gel charger does not treat an AGM or a flooded battery the same way.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| MK Battery E27 SLD G | GEL | 88 Ah | 325.9 × 166.6 × 237 |

## Part numbers and codes for the MK Battery M27 SLD G

Shops, garages and catalogues identify the M27 SLD G with these codes:

| Commercial reference | M27 SLD G |
|---|---|
| Not to be confused with | MK Battery M24 SLD G (73.6 Ah) |

## Check this before ordering the MK Battery M27 SLD G

- Your current battery should say about 88 Ah; a little more is also fine.
- Length, width and height of the M27 SLD G: 325.9 × 166.6 × 237 mm.

## Frequently asked questions about the MK Battery M27 SLD G

### M27 SLD G or 8G31: which one suits me?

Compared with the M27 SLD G, the MK Battery 8G31 has 9.60 Ah more. With 97.6 Ah, the 8G31 runs longer between charges than the M27 SLD G (88 Ah). Mind the space: the 8G31 measures 328.4 × 171.2 × 237 mm.

### How much does the MK Battery M27 SLD G weigh?

28.12 kg, with 88 Ah of capacity. For reference, the MK Battery 8G31 (97.6 Ah) weighs 31.07 kg.

### Which battery is equivalent to the MK Battery M27 SLD G?

For the M27 SLD G, other gel batteries with its size and polarity: MK Battery E27 SLD G.

### Which charger does the MK Battery M27 SLD G need?

A charger with a GEL mode not exceeding 14.1-14.4 V. Charging it with a conventional lead-acid profile damages it through overcharging.

## More batteries to compare with the M27 SLD G

- [More electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [More MK Battery models](https://bateriasonline.es/en/mk-batteries)
- [MK Battery E27 SLD G](https://bateriasonline.es/en/mk-battery-e27-sld-g) · 88 Ah, 325.9×166.6×237 mm

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