# Wheelchair battery Long U1-36HE 12V 36Ah AGM ![Wheelchair battery Long U1-36HE 12V 36Ah AGM](https://baterias.com/1599-home_default/battery-long-u1-36he-12v-36ah.jpg) > Long U1-36HE wheelchair battery 12V 36Ah AGM. U1 Series range. Dimensions 197×131×180 mm. Deep-cycle and sealed, for daily wheelchair and mobility scooter use. **Category:** [Power Wheelchair Batteries](https://baterias.com/gb/batteries-for-electric-wheelchairs) → [LONG](https://baterias.com/gb/long) - **Canonical URL**: https://baterias.com/gb/battery-long-u1-36he-12v-36ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-U1-36HE - **MPN**: U1-36HE - **Price**: 166,20 € - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | U1-36 HE | | Model | U1 Series | | Voltage (V) | 12 V | | Largo | 197 cm | | Ancho | 131 cm | | Alto | 180 cm | | Peso | 11 kg | | Tecnología | AGM | | Capacity (C20) | 36 Ah (c20) | | Capacity (C5) | 30.6 Ah (c5) | ## Quick description **Long U1-36HE 12V 36Ah** 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 36 Ah C20 📏 Dimensions 197×131×180 mm ⚙️ Technology AGM ⚖️ Weight 11 kg 🏷️ Model U1 Series ## Description ## Mobility battery Long U1-36HE U1 Series 36Ah 12V 12*V* Voltage 36*Ah* Capacity 11*kg* Weight The **Long U1-36HE** with AGM technology delivers **36 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. It measures 197 × 131 × 180 mm, the format sought by anyone replacing a 36 Ah battery in power wheelchairs and mobility scooters. - Standard replacement format for wheelchairs and scooters. - Thousands of useful cycles over its lifetime. - Designed to be discharged and recharged daily without losing capacity. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. ### What the Long U1-36HE is for The Long U1-36HE is the usual replacement in power wheelchairs, mobility scooters and light electric vehicles. Recharge after each use and avoid leaving it discharged for days. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 11 kg. ### The Long U1-36HE: U1 Series range and AGM technology Within the Long catalogue, the **U1 Series** series groups the references designed for this use. The U1-36HE is the 36 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. ### Dimensions, polarity and mounting The Long U1-36HE is made in the 197 × 131 × 180 mm format and weighs 11 kg. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters. ### Why choose Long batteries Long (Kung Long Batteries) is one of the world's largest manufacturers of sealed VRLA batteries. Its AGM and GEL series for UPS, mobility, alarms and cycling are found in equipment worldwide as original equipment. All the Long batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### How to make it last longer Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. ### Official warranty The Long U1-36HE 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. ### When you get it and how to return it 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 Long U1-36HE an AGM battery and what are the benefits of AGM? Yes. The U1-36HE from Long 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 Long U1-36HE 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 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. ### What is the service life of the U1-36HE model? Expected lifespan of the Long U1-36HE 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 U1-36HE model? Dimensions (length × width × height) are 197×131×180 mm — also written as 197x131x180 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 Long U1-36HE? 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 — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-09-29*