# Wheelchair battery MK Powered ES26-12SA 12V 26Ah AGM

![Wheelchair battery MK Powered ES26-12SA 12V 26Ah AGM](https://baterias.com/237-home_default/battery-mk-es26-12sa-12v-26ah.jpg)

> MK Powered ES26-12SA wheelchair battery 12V 26Ah AGM. Dimensions 166×175×125 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-es26-12sa-12v-26ah
- **Language**: en-GB
- **Brand**: MK POWERED
- **Reference**: BCOM-MK-ES26-12SA
- **MPN**: ES26-12SA
- **Price**: 93,90 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK |
| Reference | ES26-12 SA |
| Model | MK AGM |
| Voltage (V) | 12 V |
| Largo | 166.1 mm |
| Ancho | 175 mm |
| Alto | 125 mm |
| Peso | 7.98 kg |
| Tecnología | AGM |
| Capacity (C20) | 26 Ah (c20) |
| Capacity (C5) | 22.1 Ah (c5) |

## Quick description

**MK Powered ES26-12SA 12V 26Ah** 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
26 Ah C20

📏 Dimensions
166×175×125 mm

⚙️ Technology
AGM

⚖️ Weight
7,98 kg

🏷️ Model
MK AGM

## Description

## Mobility battery MK Powered ES26-12SA Mk AGM 26Ah 12V

12*V* Voltage
26*Ah* Capacity
7.98*kg* Weight

The **MK Powered ES26-12SA** with AGM technology delivers **26 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Measuring 166 × 175 × 125 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 26 Ah battery of this format.
- No maintenance, no water top-ups.
- Approved for air and sea transport (VRLA).
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Sealed AGM/GEL: safe indoors and in transport.

### Dimensions, polarity and mounting

It has external dimensions of 166 × 175 × 125 mm and weighs 7.98 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

### What the MK Powered ES26-12SA is for

The MK Powered ES26-12SA is the usual replacement in power wheelchairs, mobility scooters and light electric vehicles. Recharge after each use and avoid leaving it discharged for days. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 7.98 kg.

### The MK Powered ES26-12SA: Mk AGM range and AGM technology

The **Mk AGM** is the MK Powered range the ES26-12SA 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.
AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly.

### What MK Powered does differently

MK Battery (MK Powered) is the US specialist in AGM and GEL batteries for mobility: power wheelchairs, scooters and medical equipment rely on its batteries for safety and cycle life. We guarantee that every MK Powered arrives new, charged and with the manufacturer's full warranty.

### Warranty and coverage

The MK Powered ES26-12SA 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.

### How to make it last longer

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

### Delivery times and returns

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 ES26-12SA an AGM battery and what are the benefits of AGM?

Yes. The ES26-12SA 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 ES26-12SA 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 this page. 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 ES26-12SA 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 ES26-12SA battery?

Dimensions (length × width × height) are 166×175×125 mm — also written as 166x175x125 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 ES26-12SA?

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.


## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2015.

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

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*baterias.com — Automotive batteries · 2026-10-09*