# Wheelchair battery MK Powered ES17-12S 12V 18Ah AGM ![Wheelchair battery MK Powered ES17-12S 12V 18Ah AGM](https://baterias.com/225-home_default/battery-mk-es17-12s-12v-18ah.jpg) > MK Powered ES17-12S 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-es17-12s-12v-18ah - **Language**: en-GB - **Brand**: MK POWERED - **Reference**: BCOM-MK-ES17-12S - **MPN**: ES17-12S - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | MK | | Reference | ES17-12 S | | 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 ES17-12S 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 ES17-12S Mk AGM 18Ah 12V 12*V* Voltage 18*Ah* Capacity 5.85*kg* Weight The **12 V**, **18 Ah** **MK Powered ES17-12S** from the **Mk AGM** range with AGM technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. It replaces the original battery without adaptation in power wheelchairs and mobility scooters with a 181 × 75 × 166 mm format: same 18 Ah capacity. - Thousands of useful cycles over its lifetime. - Standard replacement format for wheelchairs and scooters. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Designed to be discharged and recharged daily without losing capacity. ### Dimensions, polarity and mounting The MK Powered ES17-12S is made in the 181 × 75 × 166 mm format and weighs 5.85 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. ### What the MK Powered ES17-12S is for The MK Powered ES17-12S 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. ### The MK Powered ES17-12S: Mk AGM range and AGM technology The **Mk AGM** is the MK Powered range the ES17-12S 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. ### Why choose MK Powered batteries 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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Warranty and coverage The MK Powered ES17-12S 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 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. ### When you get it and how to return it Orders placed **before 6:00 pm** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have **14 days** to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships. ## Frequently asked questions ### Is the MK Powered ES17-12S an AGM battery and what are the benefits of AGM? Yes. The ES17-12S 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. ### What size is this 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. ## 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 · 2026-10-29*