# Long LG20-12N · Electric wheelchair battery 12V 20Ah

![Long LG20-12N · Electric wheelchair battery 12V 20Ah](https://bateriasonline.es/858-home_default/long-lg20-12n.jpg)

> Long LG20-12N: 20 Ah electric wheelchair battery, 181×76×167 mm, positive terminal on the right, GEL. Equivalent to Long LG17-12. Ask for a no-obligation quote.

**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-lg20-12n
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-LG20-12N
- **MPN**: LG20-12N
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | LG Series |
| Application | Electric wheelchairs |
| Technology | GEL |
| Voltage | 12 V |
| Capacity | 20 Ah |
| Length | 181 mm |
| Width | 76 mm |
| Height | 167 mm |
| Weight | 6.7 kg |
| Polarity | Positive terminal on the right |

## Quick description

The Long LG20-12N is an electric wheelchair battery with 12 V and 20 Ah, measuring 181 × 76 × 167 mm, with the positive terminal on the right.

## Description

## Who the Long LG20-12N is for

The Long LG20-12N 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 LG20-12N belongs to the Long LG Series range. [The full range of Long batteries](https://bateriasonline.es/en/long-batteries)

## What it means that the LG20-12N is GEL

Inside, the LG20-12N holds its electrolyte in gel form. To charge the LG20-12N, use a charger with a gel profile.

## Long LG20-12N vs LG17-12 and LG24-12: differences

Torn between the LG20-12N and another similar Long? This is what changes:

| Model | Capacity | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|
| Long LG20-12N (this one) | 20 Ah | 181 × 76 × 167 | right | 6.7 kg |
| Long LG17-12 | 17 Ah | 181 × 76 × 167 | right | 6.3 kg |
| Long LG24-12 | 24 Ah | 166 × 175 × 125 | right | 9.3 kg |

- Long LG17-12: 3 Ah less, the same dimensions.
- Long LG24-12: 4 Ah more, a different case (166 × 175 × 125 mm).

## Equivalents and alternatives to the Long LG20-12N

Other gel batteries with the dimensions and polarity of the LG20-12N: with gel it is best to stay with gel, because the charging profile is different.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long LG17-12 | GEL | 17 Ah | 181 × 76 × 167 |

## Long LG20-12N codes and part numbers

This is how the Long LG20-12N appears on the label and in parts catalogues:

| Commercial reference | LG20-12N |
|---|---|
| Not to be confused with | Long LG40-12N (40 Ah), Long LG50-12N (50 Ah) |

## Check this before ordering the Long LG20-12N

- Capacity of the LG20-12N: 20 Ah; the same as your current battery or slightly more is fine.
- The LG20-12N has the positive terminal on the right: compare it with your current battery.
- Measure the space: the LG20-12N takes up 181 × 76 × 167 mm.

## Frequently asked questions about the Long LG20-12N

### Long LG20-12N or LG17-12?

Compared with the LG20-12N, the Long LG17-12 has 3 Ah less. With 20 Ah, the LG20-12N runs longer between charges than the LG17-12 (17 Ah). Both measure 181 × 76 × 167 mm, so they fit the same tray.

### How much does the Long LG20-12N weigh?

The LG20-12N weighs 6.7 kg. For reference, the Long LG17-12 (17 Ah) weighs 6.3 kg.

### Which battery is equivalent to the Long LG20-12N?

For the LG20-12N, other gel batteries with its size and polarity: Long LG17-12.

### Which side is the positive terminal on the Long LG20-12N?

The LG20-12N 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 LG20-12N 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.

## Other options if you are unsure about the LG20-12N

- [Other electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [The whole Long range](https://bateriasonline.es/en/long-batteries)
- [Sonnenschein GF12014YF](https://bateriasonline.es/en/sonnenschein-gf12014yf) · 15 Ah, 181×76×167 mm
- [Sonnenschein GF12022YF](https://bateriasonline.es/en/sonnenschein-gf12022yf) · 24 Ah, 167×176×126 mm

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