# Wheelchair battery MK Powered M27 SLD G 12V 88Ah GEL

![Wheelchair battery MK Powered M27 SLD G 12V 88Ah GEL](https://baterias.com/283-home_default/battery-mk-m27-sld-g-12v-88ah.jpg)

> MK Powered M27 SLD G wheelchair battery 12V 88Ah GEL. Dimensions 325×166×237 mm. Deep-cycle and sealed, for daily wheelchair and mobility scooter use.

**Category:** [Power Wheelchair Batteries](https://baterias.com/gb/batteries-for-electric-wheelchairs) → [MK POWERED](https://baterias.com/gb/mk-powered)

- **Canonical URL**: https://baterias.com/gb/battery-mk-m27-sld-g-12v-88ah
- **Language**: en-GB
- **Brand**: MK POWERED
- **Reference**: BCOM-MK-M27 SLD G
- **MPN**: M27 SLD G
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK |
| Reference | M27 SLD G |
| Model | MK GEL |
| Voltage (V) | 12 V |
| Largo | 325.9 mm |
| Ancho | 166.6 mm |
| Alto | 237 mm |
| Peso | 28.12 kg |
| Tecnología | GEL |
| Capacity (C20) | 88 Ah (c20) |
| Capacity (C5) | 72 Ah (c5) |

## Quick description

**MK Powered M27 SLD G 12V 88Ah** is a deep-cycle battery for wheelchairs and mobility scooters, optimised to be discharged and recharged daily down to 80 % DOD without losing range.

## Why this wheelchair battery?

- **Daily cycling without wear** handles deep discharges without losing capacity
- **Sealed AGM/GEL** no maintenance, no risk of spills
- **Thousands of useful cycles** over its full lifetime

🔌 Voltage
12 V

⚡ Capacity
88 Ah C20

📏 Dimensions
325×166×237 mm

⚙️ Technology
GEL

⚖️ Weight
28,12 kg

🏷️ Model
MK GEL

## Description

## Mobility battery MK Powered M27 SLD G Mk GEL 88Ah 12V

12*V* Voltage
88*Ah* Capacity
28.12*kg* Weight

The **MK Powered M27 SLD G** with GEL technology delivers **88 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Its 325 × 166 × 237 mm make it the exact replacement for the 88 Ah battery fitted as standard to many power wheelchairs and mobility scooters.
- Sealed AGM/GEL: safe indoors and in transport.
- GEL: excellent resistance to deep discharge and long cycle life.
- Approved for air and sea transport (VRLA).
- No maintenance, no water top-ups.

### What the MK Powered M27 SLD G is for

With 88 Ah, the MK Powered M27 SLD G offers the daily range that power wheelchairs, mobility scooters and light electric vehicles need, with a sealed construction that is safe indoors. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 28.12 kg.

### Size, terminals and hold-down of the MK Powered M27 SLD G

In terms of format, the MK Powered M27 SLD G measures 325 × 166 × 237 mm (length × width × height) and weighs 28.12 kg. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.

### The MK Powered M27 SLD G: Mk GEL range and GEL technology

The **Mk GEL** is the MK Powered range the M27 SLD G belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
A GEL battery is the choice when cycle resistance and safety matter most: no gases, no liquid and thousands of partial discharges in its lifetime.

### What MK Powered does differently

MK batteries are the standard in the electric mobility sector: sealed, approved for air transport and with the consistency that wheelchair manufacturers demand as original equipment. We guarantee that every MK Powered arrives new, charged and with the manufacturer's full warranty.

### Manufacturer's warranty

The MK Powered M27 SLD G comes with the **manufacturer's official warranty** against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.

### Care and maintenance

Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte.

### Shipping, delivery and returns

Same-day dispatch from our warehouse for in-stock orders placed **before 6:00 pm**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **14 days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.

## Frequently asked questions

### Is the M27 SLD G model a gel battery? Where is it used?

Yes, this model is a GEL battery: sealed lead-acid where the electrolyte is in gel form. It tolerates deep discharges very well and is ideal for cyclic use (solar, motorhomes, electric wheelchairs, motorcycles). Requires a GEL-specific smart charger — max charge voltage ~14.1 V (vs 14.4-14.7 V for AGM). Lifespan 6-10 years.

### How is the MK Powered M27 SLD G battery installed in the vehicle?

In most devices it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How many years does this battery last?

Expected lifespan of the MK Powered M27 SLD G is 6 to 10 years in cyclic use (marine, caravan, solar) with controlled discharges. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.

### What size is this battery?

Dimensions (length × width × height) are 326×167×237 mm — also written as 326x167x237 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### Which batteries are equivalent to the MK Powered M27 SLD G?

Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop devices. See the "Equivalents" section to view recommended options at the same performance level.


## Compatible vehicles

This battery fits 10 vehicles. Most searched:

- [Falcon Rehab Hi-Rider](https://baterias.com/gb/batteries-for-mobility-vehicles/falcon-rehab/hi-rider)
- [Wheelcare Sportster Stretch](https://baterias.com/gb/batteries-for-mobility-vehicles/wheelcare/sportster-stretch)
- [21st Century Bounder, Bounder Plus, Big Bounder](https://baterias.com/gb/batteries-for-mobility-vehicles/21st-century/bounder-bounder-plus-big-bounder)
- [Merits Health Products 4-Wheel Full Suspension Electric Scooter (S940A)](https://baterias.com/gb/batteries-for-mobility-vehicles/merits-health-products/4-wheel-full-suspension-electric-scooter-s940a)
- [Wu's Tech XL3HS, XL3HD, XL3V2](https://baterias.com/gb/batteries-for-mobility-vehicles/wu-s-tech/xl3hs-xl3hd-xl3v2)
- [Merits Health Products 3-Wheel Full Suspension Electric Scooter (S930A)](https://baterias.com/gb/batteries-for-mobility-vehicles/merits-health-products/3-wheel-full-suspension-electric-scooter-s930a)
- [Pride Pursuit XL](https://baterias.com/gb/batteries-for-mobility-vehicles/pride/pursuit-xl)
- [Pride Wrangler](https://baterias.com/gb/batteries-for-mobility-vehicles/pride/wrangler)
- [Wu's Tech L4BF](https://baterias.com/gb/batteries-for-mobility-vehicles/wu-s-tech/l4bf)
- [Wheelchairs of Kansas BCWPR- Power Chair, PEV/Overlander](https://baterias.com/gb/batteries-for-mobility-vehicles/wheelchairs-of-kansas/bcwpr-power-chair-pevoverlander)

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

---
*baterias.com — Automotive batteries · 2026-10-24*