# Long LG45-12N · Electric wheelchair battery 12V 45Ah

![Long LG45-12N · Electric wheelchair battery 12V 45Ah](https://bateriasonline.es/879-home_default/long-lg45-12n.jpg)

> Long LG45-12N: 45 Ah electric wheelchair battery, 199×166×171 mm, positive terminal on the right, GEL. Equivalent to Long LG45-12.

**Category:** [Electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries) → [Long](https://bateriasonline.es/en/long-batteries)

- **Canonical URL**: https://bateriasonline.es/en/long-lg45-12n
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-LG45-12N
- **MPN**: LG45-12N
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | LG Series |
| Application | Electric wheelchairs |
| Technology | GEL |
| Voltage | 12 V |
| Capacity | 45 Ah |
| Length | 199 mm |
| Width | 166 mm |
| Height | 171 mm |
| Weight | 15 kg |
| Polarity | Positive terminal on the right |

## Quick description

Long LG45-12N: electric wheelchair battery with 12 V and 45 Ah, measuring 199 × 166 × 171 mm, with the positive terminal on the right.

## Description

## Who the Long LG45-12N is for

The Long LG45-12N is made for powered wheelchairs. It is fitted as a 12 V pair and takes hundreds of daily cycles, something a starter battery could not handle.
The LG45-12N belongs to the Long LG Series range. [See all Long batteries](https://bateriasonline.es/en/long-batteries)

## Equivalents and alternatives to the Long LG45-12N

Other gel batteries with the dimensions and polarity of the LG45-12N: with gel it is best to stay with gel, because the charging profile is different.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long LG45-12 | GEL | 45 Ah | 199 × 166 × 171 |

## Long LG45-12N vs LG40-12 and LG40-12N: differences

What sets the LG45-12N apart from its neighbours in the Long range:

| Model | Capacity | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|
| Long LG45-12N (this one) | 45 Ah | 199 × 166 × 171 | right | 15 kg |
| Long LG40-12 | 40 Ah | 199 × 166 × 171 | right | 13.3 kg |
| Long LG40-12N | 40 Ah | 199 × 166 × 171 | right | 13.3 kg |

- Long LG40-12: 5 Ah less, the same dimensions.
- Long LG40-12N: 5 Ah less, the same dimensions.

## Inside the LG45-12N: GEL technology

Inside, the LG45-12N holds its electrolyte in gel form. It is the classic technology for wheelchairs, scooters, motorhomes and solar.

## Before ordering the LG45-12N, check this

- Length, width and height of the LG45-12N: 199 × 166 × 171 mm.
- Polarity of the LG45-12N: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Capacity of the LG45-12N: 45 Ah; the same as your current battery or slightly more is fine.

## Long LG45-12N codes and part numbers

Shops, garages and catalogues identify the LG45-12N with these codes:

| Commercial reference | LG45-12N |
|---|---|
| Not to be confused with | Long LG40-12N (40 Ah), Long LG55-12N (55 Ah, positive terminal on the left) |

## Frequently asked questions about the Long LG45-12N

### Long LG45-12N or LG40-12?

Compared with the LG45-12N, the Long LG40-12 has 5 Ah less. With 45 Ah, the LG45-12N runs longer between charges than the LG40-12 (40 Ah). Both measure 199 × 166 × 171 mm, so they fit the same tray.

### How much does the Long LG45-12N weigh?

The LG45-12N weighs 15 kg. For reference, the Long LG40-12 (40 Ah) weighs 13.3 kg.

### Which battery is equivalent to the Long LG45-12N?

For the LG45-12N, other gel batteries with its size and polarity: Long LG45-12.

### Which side is the positive terminal on the Long LG45-12N?

The LG45-12N has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

### Which charger does the Long LG45-12N need?

A charger with a GEL mode not exceeding 14.1-14.4 V. Charging it with a conventional lead-acid profile damages it through overcharging.

## Keep comparing: alternatives to the LG45-12N

- [Other electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [The whole Long range](https://bateriasonline.es/en/long-batteries)
- [Long LG45-12](https://bateriasonline.es/en/long-lg45-12) · 45 Ah, 199×166×171 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-11*