# Wheelchair battery MK Powered M17-12 SLD M 12V 18Ah AGM

![Wheelchair battery MK Powered M17-12 SLD M 12V 18Ah AGM](https://baterias.com/275-home_default/battery-mk-m17-12-sld-m-12v-18ah.jpg)

> MK Powered M17-12 SLD M wheelchair battery 12V 18Ah AGM. Dimensions 181×75×166 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-m17-12-sld-m-12v-18ah
- **Language**: en-GB
- **Brand**: MK POWERED
- **Reference**: BCOM-MK-M17-12 SLD M
- **MPN**: M17-12 SLD M
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK |
| Reference | M17-12 SLD M |
| Model | MK AGM |
| Voltage (V) | 12 V |
| Largo | 181.1 mm |
| Ancho | 75.9 mm |
| Alto | 166.9 mm |
| Peso | 5.85 kg |
| Tecnología | AGM |
| Capacity (C20) | 18 Ah (c20) |
| Capacity (C5) | 15.3 Ah (c5) |

## Quick description

**MK Powered M17-12 SLD M 12V 18Ah** 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
18 Ah C20

📏 Dimensions
181×75×166 mm

⚙️ Technology
AGM

⚖️ Weight
5,85 kg

🏷️ Model
MK AGM

## Description

## Mobility battery MK Powered M17-12 SLD M Mk AGM 18Ah 12V

12*V* Voltage
18*Ah* Capacity
5.85*kg* Weight

The **12 V**, **18 Ah** **MK Powered M17-12 SLD M** from the **Mk AGM** range with AGM technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. Measuring 181 × 75 × 166 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 18 Ah battery of this format.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Sealed AGM/GEL: safe indoors and in transport.
- No maintenance, no water top-ups.
- Approved for air and sea transport (VRLA).

### What the MK Powered M17-12 SLD M is for

The MK Powered M17-12 SLD M is designed for power wheelchairs, mobility scooters and light electric vehicles. Wheelchairs and scooters normally use two identical batteries in series: replace them together. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 5.85 kg.

### Dimensions, polarity and mounting

It has external dimensions of 181 × 75 × 166 mm and weighs 5.85 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

### 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.

### The MK Powered M17-12 SLD M: Mk AGM range and AGM technology

The **Mk AGM** is the MK Powered range the M17-12 SLD M 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.
In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.

### Care and maintenance

Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity.

### Warranty and coverage

The MK Powered M17-12 SLD M 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.

### When you get it and how to return it

Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 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 **[[ks:return_days]] 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 MK Powered M17-12 SLD M an AGM battery and what are the benefits of AGM?

Yes. The M17-12 SLD M from MK Powered uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for devices with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.

### How is the MK Powered M17-12 SLD M 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.

### What is the service life of the M17-12 SLD M model?

Expected lifespan of the MK Powered M17-12 SLD M is 5 to 8 years in mild-climate device use with Start-Stop. 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 are the dimensions of the MK Powered M17-12 SLD M battery?

Dimensions (length × width × height) are 181×76×167 mm — also written as 181x76x167 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 interchangeable batteries are there for this one?

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 35 vehicles. Most searched:

- [Frank Mobility E-Fix (with high capacity case)](https://baterias.com/gb/batteries-for-mobility-vehicles/frank-mobility/e-fix-with-high-capacity-case)
- [Merits Health Products Pioneer (S538, S548)](https://baterias.com/gb/batteries-for-mobility-vehicles/merits-health-products/pioneer-s538-s548)
- [Bruno Cub 35 FWD (U1 optional)](https://baterias.com/gb/batteries-for-mobility-vehicles/bruno/cub-35-fwd-u1-optional)
- [Pride GoGo Sport (3 Wheel), GoGo Sport (4 Wheel)](https://baterias.com/gb/batteries-for-mobility-vehicles/pride/gogo-sport-3-wheel-gogo-sport-4-wheel)
- [Frank Mobility E-Fix Basic](https://baterias.com/gb/batteries-for-mobility-vehicles/frank-mobility/e-fix-basic)
- [Pride GoGo LX with CTS, GoGo Elite Traveler (3 Wheel), GoGo Elite Traveler (4 Wheel)](https://baterias.com/gb/batteries-for-mobility-vehicles/pride/gogo-lx-with-cts-gogo-elite-traveler-3-wheel-gogo-elite-traveler-4-wheel)
- [Shoprider Mobility Old Sunrunner (777-3), Snazzy, 777E](https://baterias.com/gb/batteries-for-mobility-vehicles/shoprider-mobility/old-sunrunner-777-3-snazzy-777e)
- [Wheelcare Super Light Scooter](https://baterias.com/gb/batteries-for-mobility-vehicles/wheelcare/super-light-scooter)
- [Heartway USA P15S Puzzle](https://baterias.com/gb/batteries-for-mobility-vehicles/heartway-usa/p15s-puzzle)
- [Merits Health Products Pioneer 2 (S245, S2454)](https://baterias.com/gb/batteries-for-mobility-vehicles/merits-health-products/pioneer-2-s245-s2454)
- [Karma Medical Products KP10](https://baterias.com/gb/batteries-for-mobility-vehicles/karma-medical-products/kp10)
- [Merits Health Products MP3C-Jr](https://baterias.com/gb/batteries-for-mobility-vehicles/merits-health-products/mp3c-jr)
- [Lifestand LSC Outdoors (LSCO)](https://baterias.com/gb/batteries-for-mobility-vehicles/lifestand/lsc-outdoors-lsco)
- [Afikim Electric Vehicles Super Light SL2, Caddy](https://baterias.com/gb/batteries-for-mobility-vehicles/afikim-electric-vehicles/super-light-sl2-caddy)
- [Bruno Typhoon C3 RWD](https://baterias.com/gb/batteries-for-mobility-vehicles/bruno/typhoon-c3-rwd)

## 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

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*baterias.com — Automotive batteries · 2026-10-23*