# Long WP40-12 · Electric wheelchair battery 12V 40Ah

![Long WP40-12 · Electric wheelchair battery 12V 40Ah](https://bateriasonline.es/827-home_default/long-wp40-12.jpg)

> Long WP40-12: 40 Ah electric wheelchair battery, 197.7×166×171 mm, AGM. Equivalent to Fullriver DCG40-12 and Ritar RA12-40B.

**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-wp40-12
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-WP40-12
- **MPN**: WP40-12
- **Price**: 151,03 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | WP Series |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 40 Ah |
| Length | 197.7 mm |
| Width | 166 mm |
| Height | 171 mm |
| Weight | 13.5 kg |

## Quick description

Long WP40-12: electric wheelchair battery with 12 V and 40 Ah, measuring 197.7 × 166 × 171 mm.

## Description

## Where the Long WP40-12 fits

The Long WP40-12 is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. It is fitted as a 12 V pair and takes hundreds of daily cycles, something a starter battery could not handle.
The WP40-12 belongs to the Long WP Series range. [See all Long batteries](https://bateriasonline.es/en/long-batteries)

## What it means that the WP40-12 is AGM

The WP40-12 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. It withstands many more cycles than a conventional lead battery, at the cost of being more sensitive to overcharging.

## Long WP40-12 vs WP45-12 and WP45-12N

What sets the WP40-12 apart from its neighbours in the Long range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long WP40-12 (this one) | 40 Ah | 197.7 × 166 × 171 | 13.5 kg |
| Long WP45-12 | 45 Ah | 199 × 166 × 171 | 14.5 kg |
| Long WP45-12N | 45 Ah | 199 × 166 × 171 | 14.5 kg |

- Long WP45-12: 5 Ah more, the same dimensions.
- Long WP45-12N: 5 Ah more, the same dimensions.

## Equivalents and alternatives to the Long WP40-12

Other AGM batteries that fit the WP40-12's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Fullriver DCG40-12 | AGM | 40 Ah | 198 × 166 × 171 |
| Ritar RA12-40B | AGM | 42 Ah | 198 × 166 × 171 |
| Long WP40-12N | AGM | 40 Ah | 197.7 × 166 × 171 |
| Long WP40-12E | AGM | 40 Ah | 197.7 × 166 × 171 |
| Long WP40-12NE | AGM | 40 Ah | 197.7 × 166 × 171 |

## Part numbers and codes for the Long WP40-12

The WP40-12 is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | WP40-12 |
|---|---|
| Not to be confused with | Long WP20-12 (20 Ah), Long WP45-12 (45 Ah), Long WP50-12 (50 Ah) |

## Check this before ordering the Long WP40-12

- With 40 Ah, the WP40-12 replaces an original battery of that capacity or slightly less.
- Measure the space: the WP40-12 takes up 197.7 × 166 × 171 mm.

## Frequently asked questions about the Long WP40-12

### WP40-12 or WP45-12: which one suits me?

Compared with the WP40-12, the Long WP45-12 has 5 Ah more. With 45 Ah, the WP45-12 runs longer between charges than the WP40-12 (40 Ah). Both measure 197.7 × 166 × 171 mm, so they fit the same tray.

### How much does the Long WP40-12 weigh?

13.5 kg, with 40 Ah of capacity. For reference, the Long WP45-12 (45 Ah) weighs 14.5 kg.

### Which battery is equivalent to the Long WP40-12?

Only other AGM batteries with its dimensions and polarity: Fullriver DCG40-12, Ritar RA12-40B and Long WP40-12N. Neither an EFB nor a conventional battery replaces the WP40-12.

## Keep comparing: alternatives to the WP40-12

- [All electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [More Long models](https://bateriasonline.es/en/long-batteries)
- [Fullriver DCG40-12](https://bateriasonline.es/en/fullriver-dcg40-12) · 40 Ah, 198×166×171 mm
- [Ritar RA12-40B](https://bateriasonline.es/en/ritar-ra12-40b) · 42 Ah, 198×166×171 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-10*