# Wheelchair battery MK Powered ES9-12FR 12V 9Ah AGM ![Wheelchair battery MK Powered ES9-12FR 12V 9Ah AGM](https://baterias.com/267-home_default/battery-mk-es9-12fr-12v-9ah.jpg) > MK Powered ES9-12FR wheelchair battery 12V 9Ah AGM. Dimensions 150×65×102 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-es9-12fr-12v-9ah - **Language**: en-GB - **Brand**: MK POWERED - **Reference**: BCOM-MK-ES9-12FR - **MPN**: ES9-12FR - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | MK | | Reference | ES9-12 FR | | Model | MK AGM | | Voltage (V) | 12 V | | Largo | 150.9 mm | | Ancho | 65 mm | | Alto | 102.1 mm | | Peso | 2.69 kg | | Tecnología | AGM | | Capacity (C20) | 9 Ah (c20) | | Capacity (C5) | 7.65 Ah (c5) | ## Quick description **MK Powered ES9-12FR 12V 9Ah** 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 9 Ah C20 📏 Dimensions 150×65×102 mm ⚙️ Technology AGM ⚖️ Weight 2,69 kg 🏷️ Model MK AGM ## Description ## Mobility battery MK Powered ES9-12FR Mk AGM 9Ah 12V 12*V* Voltage 9*Ah* Capacity 2.69*kg* Weight The **MK Powered ES9-12FR** with AGM technology delivers **9 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Measuring 150 × 65 × 102 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 9 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 ES9-12FR is for The MK Powered ES9-12FR 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 2.69 kg. ### Size, terminals and hold-down of the MK Powered ES9-12FR The MK Powered ES9-12FR is made in the 150 × 65 × 102 mm format and weighs 2.69 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### The MK Powered ES9-12FR: Mk AGM range and AGM technology The **Mk AGM** is the MK Powered range the ES9-12FR 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. ### 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. ### Warranty and coverage The MK Powered ES9-12FR 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 Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. ### Shipping, delivery 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 ES9-12FR an AGM battery and what are the benefits of AGM? Yes. AGM (Absorbent Glass Mat) technology, 9 Ah and 12 V: sealed lead-acid, with the electrolyte held in glass fibre. It tolerates heat better and handles more cycles than a conventional battery. ### What size is this battery? Before buying, measure the space in your device: one extra millimetre can stop the hold-down clamp from closing. The MK Powered ES9-12FR takes up 151×65×102 mm (length, width and height, terminals included). ### MK Powered ES9-12FR or MK Powered ES9-12: which one to choose? It has the same dimensions, voltage and technology as the ES9-12FR, although it is not a manufacturer-approved equivalent. Compared with the ES9-12FR it has the same Ah and cranking power. It costs €56.40 more. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap. ## 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 · 2026-11-06*