# Wheelchair battery MK Powered M22NF SLD A 12V 55Ah AGM ![Wheelchair battery MK Powered M22NF SLD A 12V 55Ah AGM](https://baterias.com/277-home_default/battery-mk-m22nf-sld-a-12v-55ah.jpg) > MK Powered M22NF SLD A wheelchair battery 12V 55Ah AGM. Dimensions 243Γ—138Γ—234 mm. Deep-cycle and sealed, for daily wheelchair and mobility scooter use. **Category:** [Power Wheelchair Batteries](https://baterias.com/gb/batteries-for-electric-wheelchairs) β†’ [MK POWERED](https://baterias.com/gb/mk-powered) - **Canonical URL**: https://baterias.com/gb/battery-mk-m22nf-sld-a-12v-55ah - **Language**: en-GB - **Brand**: MK POWERED - **Reference**: BCOM-MK-M22NF SLD A - **MPN**: M22NF SLD A - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | MK | | Reference | M22 NF SLD A | | Model | MK AGM | | Voltage (V) | 12 V | | Largo | 243.8 mm | | Ancho | 138.9 mm | | Alto | 234.7 mm | | Peso | 16.78 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 55 Ah (c20) | | Capacity (C5) | 46.5 Ah (c5) | ## Quick description **MK Powered M22NF SLD A 12V 55Ah** 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 πŸ”Œ Voltage 12 V ⚑ Capacity 55 Ah C20 πŸ“ Dimensions 243Γ—138Γ—234 mm βš™οΈ Technology AGM βš–οΈ Weight 16,78 kg 🏷️ Model MK AGM ## Description ## Mobility battery MK Powered M22NF SLD A Mk AGM 55Ah 12V 12*V* Voltage 55*Ah* Capacity 16.78*kg* Weight The **MK Powered M22NF SLD A** with AGM technology delivers **55 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Its 243 Γ— 138 Γ— 234 mm make it the exact replacement for the 55 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. ### What the MK Powered M22NF SLD A is for With 55 Ah, the MK Powered M22NF SLD A 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 16.78 kg. ### Will it fit your current battery tray? It has external dimensions of 243 Γ— 138 Γ— 234 mm and weighs 16.78 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### MK Powered: the maker behind the M22NF SLD A 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 M22NF SLD A: Mk AGM range and AGM technology Within the MK Powered catalogue, the **Mk AGM** series groups the references designed for this use. The M22NF SLD A is the 55 Ah model of that family, with the same performance as its siblings in other sizes. 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. ### Usage and maintenance tips 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. ### Manufacturer's warranty The MK Powered M22NF SLD A 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. ### 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 M22NF SLD A model AGM? What does this technology offer? Yes. The M22NF SLD A 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 M22NF SLD A 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 (βˆ’) 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 β€” match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). 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 M22NF SLD A battery last? Expected lifespan of the MK Powered M22NF SLD A 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 M22NF SLD A battery? Dimensions (length Γ— width Γ— height) are 244Γ—139Γ—235 mm β€” also written as 244x139x235 mm β€” 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 M22NF SLD A 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 β€” 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 β€” automotive battery specialists since 2012. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-26*