# Wheelchair battery Long U1-34H 12V 34Ah AGM ![Wheelchair battery Long U1-34H 12V 34Ah AGM](https://baterias.com/1596-home_default/battery-long-u1-34h-12v-34ah.jpg) > Long U1-34H wheelchair battery 12V 34Ah AGM. U1 Series range. Dimensions 197Γ—131Γ—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) β†’ [LONG](https://baterias.com/gb/long) - **Canonical URL**: https://baterias.com/gb/battery-long-u1-34h-12v-34ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-U1-34H - **MPN**: U1-34H - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | U1-34 H | | Model | U1 Series | | Voltage (V) | 12 V | | Largo | 197 cm | | Ancho | 131 cm | | Alto | 180 cm | | Peso | 10.5 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 34 Ah (c20) | | Capacity (C5) | 28.9 Ah (c5) | ## Quick description **Long U1-34H 12V 34Ah** 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 πŸ”Œ Voltage 12 V ⚑ Capacity 34 Ah C20 πŸ“ Dimensions 197Γ—131Γ—180 mm βš™οΈ Technology AGM βš–οΈ Weight 10,5 kg 🏷️ Model U1 Series ## Description ## Mobility battery Long U1-34H U1 Series 34Ah 12V 12*V* Voltage 34*Ah* Capacity 10.50*kg* Weight Designed for power wheelchairs, mobility scooters and light electric vehicles, the **Long U1-34H** from the **U1 Series** range offers **34 Ah** of deep-cycle capacity with AGM technology. It measures 197 Γ— 131 Γ— 180 mm, the format sought by anyone replacing a 34 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. ### Dimensions, polarity and mounting It has external dimensions of 197 Γ— 131 Γ— 180 mm and weighs 10.50 kg. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change. ### What the Long U1-34H is for The Long U1-34H 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 10.50 kg. ### The Long U1-34H: U1 Series range and AGM technology Within the Long catalogue, the **U1 Series** series groups the references designed for this use. The U1-34H is the 34 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. ### Long: the maker behind the U1-34H 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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Official warranty The Long U1-34H 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. ### 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. Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. ### Delivery times and returns Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 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 **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email. ## Frequently asked questions ### Is this battery AGM? What is it for? Yes. The U1-34H 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 do I change this battery step by step? 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 (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 Long U1-34H battery last? Expected lifespan of the Long U1-34H 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 U1-34H model? Dimensions (length Γ— width Γ— height) are 197Γ—131Γ—180 mm β€” also written as 197x131x180 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 U1-34H 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€” over 25 years of experience validating automotive batteries. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-09-30*