# Wheelchair battery MK Powered MU-1 SLD M-33 12V 33Ah AGM ![Wheelchair battery MK Powered MU-1 SLD M-33 12V 33Ah AGM](https://baterias.com/296-home_default/battery-mk-mu-1-sld-m-33-12v-33ah.jpg) > MK Powered MU-1 SLD M-33 wheelchair battery 12V 33Ah AGM. Dimensions 196×130×180 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-mu-1-sld-m-33-12v-33ah - **Language**: en-GB - **Brand**: MK POWERED - **Reference**: BCOM-MK-MU-1 SLD M-33 - **MPN**: MU-1 SLD M-33 - **Price**: 142,20 € (VAT incl., Spain) - **Last updated**: 2026-10-28 - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | MK | | Reference | MU-1 SLD M-33 | | Model | MK AGM | | Voltage (V) | 12 V | | Largo | 196.1 mm | | Ancho | 130 mm | | Alto | 180.1 mm | | Peso | 9.89 kg | | Tecnología | AGM | | Capacity (C20) | 33 Ah (c20) | | Capacity (C5) | 28.05 Ah (c5) | ## Quick description **MK Powered MU-1 SLD M-33 12V 33Ah** 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 33 Ah C20 📏 Dimensions 196×130×180 mm ⚙️ Technology AGM ⚖️ Weight 10,48 kg 🏷️ Model MK AGM ## Description ## Mobility battery MK Powered MU-1 SLD M-33 Mk AGM 33Ah 12V 12*V* Voltage 33*Ah* Capacity 9.89*kg* Weight Designed for power wheelchairs, mobility scooters and light electric vehicles, the **MK Powered MU-1 SLD M-33** from the **Mk AGM** range offers **33 Ah** of deep-cycle capacity with AGM technology. It measures 196 × 130 × 180 mm, the format sought by anyone replacing a 33 Ah battery in power wheelchairs and mobility scooters. - Designed to be discharged and recharged daily without losing capacity. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Standard replacement format for wheelchairs and scooters. - Thousands of useful cycles over its lifetime. ### What the MK Powered MU-1 SLD M-33 is for The MK Powered MU-1 SLD M-33 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 9.89 kg. ### Dimensions, polarity and mounting The MK Powered MU-1 SLD M-33 is made in the 196 × 130 × 180 mm format and weighs 9.89 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### What MK Powered does differently 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. ### The MK Powered MU-1 SLD M-33: Mk AGM range and AGM technology Within the MK Powered catalogue, the **Mk AGM** series groups the references designed for this use. The MU-1 SLD M-33 is the 33 Ah model of that family, with the same performance as its siblings in other sizes. 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. ### How to make it last longer 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. ### Manufacturer's warranty The MK Powered MU-1 SLD M-33 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. ### Delivery times and returns Same-day dispatch from our warehouse for in-stock orders placed **before 6:00 pm**: 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 **14 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 MU-1 SLD M-33 model AGM? What does this technology offer? Yes, it is AGM. In an AGM battery such as the MU-1 SLD M-33, the electrolyte is not free but absorbed in a glass-fibre mat inside a sealed lead-acid battery. It tolerates heat better and handles more cycles than a conventional battery. ### What size is this battery? It measures 196×130×180 mm in length × width × height, with the terminals included in the height. Measure the battery tray before ordering: a one-millimetre difference is enough for the hold-down clamp not to close. ### MK Powered MU-1 SLD M-33 or MK Powered MU-1 SLD M: which one to choose? It has the same dimensions, voltage and technology as the MU-1 SLD M-33, although it is not a manufacturer-approved equivalent. Compared with the MU-1 SLD M-33 it has 2 Ah more. It costs 59,50 € less. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap. ### MK Powered MU-1 SLD M-33 or MK Powered MU-1 SLD M-2: which one to choose? Same case and same technology as the MU-1 SLD M-33: an alternative by size, not an official equivalent. Compared with the MU-1 SLD M-33 it has 2 Ah more. It costs 0,60 € less. If the polarity matches and your equipment had a similar capacity, it works as a replacement; if in doubt, ask us with your model. ## 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 · 2026-11-11*