# Wheelchair battery MK Powered ES3-12R 12V 2.8Ah AGM ![Wheelchair battery MK Powered ES3-12R 12V 2.8Ah AGM](https://baterias.com/240-home_default/battery-mk-es3-12r-12v-28ah.jpg) > MK Powered ES3-12R wheelchair battery 12V 2.8Ah AGM. Dimensions 133×33×103 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-es3-12r-12v-28ah - **Language**: en-GB - **Brand**: MK POWERED - **Reference**: BCOM-MK-ES3-12R - **MPN**: ES3-12R - **Price**: 48,70 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | MK | | Reference | ES3-12 R | | Model | MK AGM | | Voltage (V) | 12 V | | Largo | 133.1 mm | | Ancho | 33 mm | | Alto | 103.9 mm | | Peso | 1.12 kg | | Tecnología | AGM | | Capacity (C20) | 2.8 Ah (c20) | | Capacity (C5) | 2.38 Ah (c5) | ## Quick description **MK Powered ES3-12R 12V 2Ah** 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 2 Ah C20 📏 Dimensions 133×33×103 mm ⚙️ Technology AGM ⚖️ Weight 1,12 kg 🏷️ Model MK AGM ## Description ## Mobility battery MK Powered ES3-12R Mk AGM 2.8Ah 12V 12*V* Voltage 2.8*Ah* Capacity 1.12*kg* Weight The **MK Powered ES3-12R** with AGM technology delivers **2.8 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Measuring 133 × 33 × 103 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 2.8 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). ### Will it fit your current battery tray? In terms of format, the MK Powered ES3-12R measures 133 × 33 × 103 mm (length × width × height) and weighs 1.12 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### What the MK Powered ES3-12R is for With 2.8 Ah, the MK Powered ES3-12R offers the daily range that power wheelchairs, mobility scooters and light electric vehicles need, with a sealed construction that is safe indoors. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 1.12 kg. ### The MK Powered ES3-12R: Mk AGM range and AGM technology The **Mk AGM** is the MK Powered range the ES3-12R 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. ### MK Powered: the maker behind the ES3-12R 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. ### Official warranty The MK Powered ES3-12R 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 Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. ### Shipping, delivery and returns Order **before [[ks:cutoff]]** 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 **[[ks:return_days]] 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 ES3-12R model AGM? What does this technology offer? Yes. The ES3-12R 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 ES3-12R 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 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 ES3-12R battery last? Expected lifespan of the MK Powered ES3-12R 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 ES3-12R model? Dimensions (length × width × height) are 133×33×104 mm — also written as 133x33x104 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 ES3-12R? 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 2012. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-21*