# Wheelchair battery MK Powered ES20-12FR HR 12V 20Ah AGM ![Wheelchair battery MK Powered ES20-12FR HR 12V 20Ah AGM](https://baterias.com/233-home_default/battery-mk-es20-12fr-hr-12v-20ah.jpg) > MK Powered ES20-12FR HR wheelchair battery 12V 20Ah 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-es20-12fr-hr-12v-20ah - **Language**: en-GB - **Brand**: MK POWERED - **Reference**: BCOM-MK-ES20-12FR HR - **MPN**: ES20-12FR HR - **Price**: 65,20 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | MK | | Reference | ES20-12 FR HR | | Model | MK AGM | | Voltage (V) | 12 V | | Largo | 181.1 mm | | Ancho | 75.9 mm | | Alto | 166.9 mm | | Peso | 5.94 kg | | Tecnología | AGM | | Capacity (C20) | 20 Ah (c20) | | Capacity (C5) | 17 Ah (c5) | ## Quick description **MK Powered ES20-12FR HR 12V 20Ah** 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 20 Ah C20 📏 Dimensions 181×75×166 mm ⚙️ Technology AGM ⚖️ Weight 5,94 kg 🏷️ Model MK AGM ## Description ## Mobility battery MK Powered ES20-12FR HR Mk AGM 20Ah 12V 12*V* Voltage 20*Ah* Capacity 5.94*kg* Weight Designed for power wheelchairs, mobility scooters and light electric vehicles, the **MK Powered ES20-12FR HR** from the **Mk AGM** range offers **20 Ah** of deep-cycle capacity with AGM technology. Its 181 × 75 × 166 mm make it the exact replacement for the 20 Ah battery fitted as standard to many power wheelchairs and mobility scooters. - Sealed AGM/GEL: safe indoors and in transport. - AGM: faster recharging and better cycle resistance than a conventional battery. - Approved for air and sea transport (VRLA). - No maintenance, no water top-ups. ### Dimensions, polarity and mounting In terms of format, the MK Powered ES20-12FR HR measures 181 × 75 × 166 mm (length × width × height) and weighs 5.94 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. ### What the MK Powered ES20-12FR HR is for The MK Powered ES20-12FR HR 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 5.94 kg. ### The MK Powered ES20-12FR HR: Mk AGM range and AGM technology The ES20-12FR HR is part of the MK Powered **Mk AGM** range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family. 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. ### 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. All the MK Powered batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### Official warranty The MK Powered ES20-12FR HR 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. ### Usage and maintenance tips 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. ### 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 ES20-12FR HR model AGM? What does this technology offer? Yes. The ES20-12FR HR 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 ES20-12FR HR 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 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 long does the MK Powered ES20-12FR HR battery last? Expected lifespan of the MK Powered ES20-12FR HR 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 measurements of the ES20-12FR HR model? 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. ### What are the equivalents of the ES20-12FR HR model? 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 --- *baterias.com — Automotive batteries · 2026-10-08*