# Wheelchair battery MK Powered ES26-12 12V 26Ah AGM ![Wheelchair battery MK Powered ES26-12 12V 26Ah AGM](https://baterias.com/236-home_default/battery-mk-es26-12-agm-12v-26ah.jpg) > MK Powered ES26-12 wheelchair battery 12V 26Ah AGM. Dimensions 166×175×125 mm, + terminal on the right. For daily wheelchair 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-es26-12-agm-12v-26ah - **Language**: en-GB - **Brand**: MK POWERED - **Reference**: BCOM-MK-ES26-12 - **EAN**: 3660766448538 - **MPN**: ES26-12 - **Price**: 84,20 € - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | MK | | Reference | ES26-12 | | Model | MK AGM | | Voltage (V) | 12 V | | Largo | 166.1 mm | | Ancho | 175 mm | | Alto | 125 mm | | Peso | 9.28 kg | | Tecnología | AGM | | Capacity (C20) | 26 Ah (c20) | | Capacity (C10) | 24.7 Ah (c10) | | Capacity (C5) | 22.1 Ah (c5) | ## Quick description **MK Powered ES26-12 12V 26Ah** is a sealed AGM/GEL battery for daily mobility use: maintenance-free, no risk of spills, and thousands of useful cycles well beyond a starter battery. ## 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 🧭 Polarity Positive on the right ⚖️ Weight 9,28 kg 🏷️ Model MK AGM ## Description ## Mobility battery MK Powered ES26-12 Mk AGM 26Ah 12V 12*V* Voltage 26*Ah* Capacity 9.28*kg* Weight The **12 V**, **26 Ah** **MK Powered ES26-12** from the **Mk AGM** range with AGM technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. 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. - 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 ES26-12 is for The MK Powered ES26-12 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 9.28 kg. ### Will it fit your current battery tray? It has external dimensions of 166 × 175 × 125 mm and weighs 9.28 kg. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters. ### Why choose MK Powered batteries 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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### The MK Powered ES26-12: Mk AGM range and AGM technology The **Mk AGM** is the MK Powered range the ES26-12 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 (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery. ### How to make it last longer 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. ### Official warranty The MK Powered ES26-12 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. ### Delivery times and returns Order **before 6:00 pm** with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have **14 days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email. ## Frequently asked questions ### Is the MK Powered ES26-12 an AGM battery and what are the benefits of AGM? Yes. The ES26-12 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 do I fit the ES26-12 model in my device? 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 long does the MK Powered ES26-12 battery last? Expected lifespan of the MK Powered ES26-12 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 ES26-12 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 ES26-12? 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 1 vehicles. Most searched: - [Exide Powerware 2026C](https://baterias.com/gb/batteries-for-sai-ups/exide-powerware/2026c) ## 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 · 2026-10-27*