# MK Battery 8G22NF · Electric wheelchair battery 12V 51Ah

![MK Battery 8G22NF · Electric wheelchair battery 12V 51Ah](https://bateriasonline.es/2807-home_default/mk-battery-8g22nf.jpg)

> MK Battery 8G22NF: 51 Ah electric wheelchair battery, 228.3×138.9×235.2 mm, GEL. Equivalent to Deka 8G22NF and MK Battery M22NF SLD G.

**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-8g22nf
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-8G22NF
- **MPN**: 8G22NF
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK GEL |
| Application | Electric wheelchairs |
| Technology | GEL |
| Voltage | 12 V |
| Capacity | 51 Ah |
| Length | 228.3 mm |
| Width | 138.9 mm |
| Height | 235.2 mm |
| Weight | 17.01 kg |

## Quick description

The MK Battery 8G22NF is an electric wheelchair battery with 12 V and 51 Ah, measuring 228.3 × 138.9 × 235.2 mm.

## Description

## The MK Battery 8G22NF at a glance

The MK Battery 8G22NF 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 8G22NF belongs to the MK Battery MK GEL range. [More MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## Inside the 8G22NF: GEL technology

The 8G22NF is a gel battery: the electrolyte is immobilised in silica gel. It requires a charger with a specific gel profile.

## MK Battery 8G22NF vs 8G34 and M34 SLD G: differences

Torn between the 8G22NF and another similar MK Battery? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| MK Battery 8G22NF (this one) | 51 Ah | 228.3 × 138.9 × 235.2 | 17.01 kg |
| MK Battery 8G34 | 60 Ah | 259.1 × 168.7 × 179.1 | 17.46 kg |
| MK Battery M34 SLD G | 60 Ah | 259.1 × 168.7 × 179.1 | 17.46 kg |

- MK Battery 8G34: 9 Ah more, a different case (259.1 × 168.7 × 179.1 mm).
- MK Battery M34 SLD G: 9 Ah more, a different case (259.1 × 168.7 × 179.1 mm).

## Equivalents and alternatives to the MK Battery 8G22NF

Other gel batteries with the dimensions and polarity of the 8G22NF: with gel it is best to stay with gel, because the charging profile is different.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Deka 8G22NF | GEL | 51 Ah | 228.3 × 138.9 × 235.2 |
| MK Battery M22NF SLD G | GEL | 51 Ah | 228.3 × 138.9 × 235.2 |

## MK Battery 8G22NF codes and part numbers

The 8G22NF is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | 8G22NF |
|---|---|
| Not to be confused with | MK Battery 8A22NF (55 Ah) |

## Before ordering the 8G22NF, check this

- With 51 Ah, the 8G22NF replaces an original battery of that capacity or slightly less.
- Length, width and height of the 8G22NF: 228.3 × 138.9 × 235.2 mm.

## Frequently asked questions about the MK Battery 8G22NF

### MK Battery 8G22NF or 8G34?

Compared with the 8G22NF, the MK Battery 8G34 has 9 Ah more. With 60 Ah, the 8G34 runs longer between charges than the 8G22NF (51 Ah). Mind the space: the 8G34 measures 259.1 × 168.7 × 179.1 mm.

### How much does the MK Battery 8G22NF weigh?

The 8G22NF weighs 17.01 kg. For reference, the MK Battery 8G34 (60 Ah) weighs 17.46 kg.

### Which battery is equivalent to the MK Battery 8G22NF?

For the 8G22NF, other gel batteries with its size and polarity: Deka 8G22NF and MK Battery M22NF SLD G.

## Keep comparing: alternatives to the 8G22NF

- [More electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [Full MK Battery catalogue](https://bateriasonline.es/en/mk-batteries)
- [Long LG22NF305CN](https://bateriasonline.es/en/long-lg22nf305cn) · 62 Ah, 226×135×214 mm

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