# Wheelchair battery Long U1-34HN 12V 34Ah AGM

![Wheelchair battery Long U1-34HN 12V 34Ah AGM](https://baterias.com/1598-home_default/battery-long-u1-34hn-12v-34ah.jpg)

> Long U1-34HN wheelchair battery 12V 34Ah AGM. U1 Series range. Dimensions 197×131×168 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-u1-34hn-12v-34ah
- **Language**: en-GB
- **Brand**: LONG
- **Reference**: BCOM-LONG-U1-34HN
- **MPN**: U1-34HN
- **Price**: 130,80 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | LONG |
| Reference | U1-34 HN |
| Model | U1 Series |
| Voltage (V) | 12 V |
| Largo | 197 cm |
| Ancho | 131 cm |
| Alto | 168 cm |
| Peso | 10.5 kg |
| Tecnología | AGM |
| Capacity (C20) | 34 Ah (c20) |
| Capacity (C5) | 28.9 Ah (c5) |

## Quick description

**Long U1-34HN 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

🔌 Voltage
12 V

⚡ Capacity
34 Ah C20

📏 Dimensions
197×131×168 mm

⚙️ Technology
AGM

⚖️ Weight
10,5 kg

🏷️ Model
U1 Series

## Description

## Mobility battery Long U1-34HN U1 Series 34Ah 12V

12*V* Voltage
34*Ah* Capacity
10.50*kg* Weight

The **12 V**, **34 Ah** **Long U1-34HN** from the **U1 Series** range with AGM technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. It measures 197 × 131 × 168 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.

### What the Long U1-34HN is for

With 34 Ah, the Long U1-34HN 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 10.50 kg.

### Dimensions, polarity and mounting

It has external dimensions of 197 × 131 × 168 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.

### Long: the maker behind the U1-34HN

Long batteries combine large-scale production with ISO quality standards and a batch-to-batch consistency that has made them the de-facto standard in backup systems and electric mobility. All the Long batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

### The Long U1-34HN: U1 Series range and AGM technology

The **U1 Series** is the Long range the U1-34HN 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.

### 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. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.

### Official warranty

The Long U1-34HN 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

Orders placed **before 6:00 pm** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have **14 days** to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.

## Frequently asked questions

### Is this battery AGM? What is it for?

Yes. The U1-34HN 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 fit the U1-34HN 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 (−) 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 Long U1-34HN battery last?

Expected lifespan of the Long U1-34HN 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 Long U1-34HN battery?

Dimensions (length × width × height) are 197×131×168 mm — also written as 197x131x168 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 interchangeable batteries are there for this one?

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

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*baterias.com — Automotive batteries · 2026-10-28*