# Fulbat FL-WX03 · Lawn mower battery 28V 2.5Ah

![Fulbat FL-WX03 · Lawn mower battery 28V 2.5Ah](https://bateriasonline.es/392-home_default/fulbat-fl-wx03.jpg)

> Fulbat FL-WX03: 2.5 Ah lawn mower battery, 103.7×48.8×72.1 mm, lithium. Price on request: ask for a free quote.

**Category:** [Lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries) → [Fulbat](https://bateriasonline.es/en/fulbat-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fulbat-fl-wx03
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FL-WX03
- **MPN**: FL-WX03
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Robot Mower |
| Application | Lawn mowers and garden machinery |
| Technology | Lithium |
| Voltage | 28 V |
| Capacity | 2.5 Ah |
| Length | 103.7 mm |
| Width | 48.8 mm |
| Height | 72.1 mm |
| Weight | 0.42 kg |
| Energy | 70 Wh |

## Quick description

The Fulbat FL-WX03 is a lawn mower battery with 28 V and 2.5 Ah, measuring 103.7 × 48.8 × 72.1 mm.

## Description

## The Fulbat FL-WX03 at a glance

The Fulbat FL-WX03 starts ride-on mowers and garden tractors. Check polarity and terminal type: garden machinery uses several formats.
The FL-WX03 belongs to the Fulbat FULBAT Robot Mower range. [See all Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## What it means that the FL-WX03 is lithium

Inside, the FL-WX03 uses LiFePO4 cells protected by a BMS. The FL-WX03 self-discharges very little at rest, so it can stand for months.

## Equivalents and alternatives to the Fulbat FL-WX03

We have no other battery with exactly the dimensions and polarity of the FL-WX03. Browse the rest of our [lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries) to compare close options.

## Part numbers and codes for the Fulbat FL-WX03

This is how the Fulbat FL-WX03 appears on the label and in parts catalogues:

| Commercial reference | FL-WX03 |
|---|---|
| Not to be confused with | Fulbat FL-WX01 (2 Ah), Fulbat FL-WX02 (5 Ah) |

## Before ordering the FL-WX03, check this

- With 2.5 Ah, the FL-WX03 replaces an original battery of that capacity or slightly less.
- Length, width and height of the FL-WX03: 103.7 × 48.8 × 72.1 mm.

## Frequently asked questions about the Fulbat FL-WX03

### How much does the Fulbat FL-WX03 weigh?

0.42 kg, with 2.5 Ah of capacity.

### What are the dimensions and weight of the Fulbat FL-WX03?

It measures 103.7 × 48.8 × 72.1 mm and weighs 0.42 kg. Compare these figures with the tray and the hold-down clamp before ordering.

### Why is the mower battery dead every spring?

Because it spends the winter discharging. Charge it before storing the machine and give it a maintenance charge every two months, or disconnect it.

## More batteries to compare with the FL-WX03

- [Other lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries)
- [More Fulbat models](https://bateriasonline.es/en/fulbat-batteries)

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