# Long WP20-12U · Electric wheelchair battery 12V 20Ah

![Long WP20-12U · Electric wheelchair battery 12V 20Ah](https://bateriasonline.es/799-home_default/long-wp20-12u.jpg)

> Long WP20-12U: 20 Ah electric wheelchair battery, 181×76×167 mm, AGM. Equivalent to Kronobat ES20-12CFT and MK Battery ES20-12C. 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-wp20-12u
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-WP20-12U
- **MPN**: WP20-12U
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | WP Series |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 20 Ah |
| Length | 181 mm |
| Width | 76 mm |
| Height | 167 mm |
| Weight | 5.95 kg |

## Quick description

Long WP20-12U: electric wheelchair battery with 12 V and 20 Ah, measuring 181 × 76 × 167 mm.

## Description

## Where the Long WP20-12U fits

The Long WP20-12U is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. With 20 Ah per battery, the WP20-12U is designed for a full charge every night.
The WP20-12U belongs to the Long WP Series range. [See all Long batteries](https://bateriasonline.es/en/long-batteries)

## Equivalents and alternatives to the Long WP20-12U

Other AGM batteries that fit the WP20-12U's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Kronobat ES20-12CFT | AGM | 20 Ah | 181 × 76 × 167 |
| MK Battery ES20-12C | AGM | 20 Ah | 181.1 × 75.9 × 166.9 |
| MK Battery ES20-12C FT | AGM | 20 Ah | 181.1 × 75.9 × 166.9 |
| MK Battery ES20-12FR HR | AGM | 20 Ah | 181.1 × 75.9 × 166.9 |
| MK Battery M20-12 SLD M | AGM | 20 Ah | 181.1 × 75.9 × 166.9 |
| Fullriver HC20 | AGM | 20 Ah | 181 × 77 × 167 |

## Long WP20-12U vs WP18-12 and WP18-12I: differences

What sets the WP20-12U apart from its neighbours in the Long range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long WP20-12U (this one) | 20 Ah | 181 × 76 × 167 | 5.95 kg |
| Long WP18-12 | 18 Ah | 181 × 76 × 167 | 6.3 kg |
| Long WP18-12I | 18 Ah | 181 × 76 × 167 | 6.3 kg |

- Long WP18-12: 2 Ah less, the same dimensions.
- Long WP18-12I: 2 Ah less, the same dimensions.

## Inside the WP20-12U: AGM technology

The WP20-12U 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.

## Before ordering the WP20-12U, check this

- Measure the space: the WP20-12U takes up 181 × 76 × 167 mm.
- Your current battery should say about 20 Ah; a little more is also fine.

## Frequently asked questions about the Long WP20-12U

### WP20-12U or WP18-12: which one suits me?

Compared with the WP20-12U, the Long WP18-12 has 2 Ah less. With 20 Ah, the WP20-12U runs longer between charges than the WP18-12 (18 Ah). Both measure 181 × 76 × 167 mm, so they fit the same tray.

### How much does the Long WP20-12U weigh?

5.95 kg, with 20 Ah of capacity. For reference, the Long WP18-12 (18 Ah) weighs 6.3 kg.

### Which battery is equivalent to the Long WP20-12U?

Only other AGM batteries with its dimensions and polarity: Kronobat ES20-12CFT, MK Battery ES20-12C and MK Battery ES20-12C FT. Neither an EFB nor a conventional battery replaces the WP20-12U.

## Other options if you are unsure about the WP20-12U

- [More electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [Full Long catalogue](https://bateriasonline.es/en/long-batteries)
- [Kronobat ES20-12CFT](https://bateriasonline.es/en/kronobat-es20-12cft) · 20 Ah, 181×76×167 mm
- [MK Battery ES20-12C](https://bateriasonline.es/en/mk-battery-es20-12c) · 20 Ah, 181.1×75.9×166.9 mm

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